Earthquake with magnitude of ML 3.3 on date 18-09-2021 and time 14:02:51 (UTC) in region Costa Siciliana nord occidentale (Trapani)

A magnitude ML 3.3 earthquake occured in region: Costa Siciliana nord occidentale (Trapani), on

  • 18-09-2021 14:02:51 (UTC)
  • 18-09-2021 16:02:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.3900, 12.6180 at 11 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km N of Trapani (68759 inhabitants)
68 Km N of Marsala (83194 inhabitants)
72 Km W of Palermo (674435 inhabitants)
82 Km N of Mazara del Vallo (51718 inhabitants)
85 Km W of Bagheria (55387 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap

These three maps show the results of the analysis using the software ShakeMap designed to provide the level of ground shaking experienced in a region using the data recorded by seismometers and strong motion instruments and seismological information regarding the attenuation of the wavefield with distance and the site characteristics. The Shakemaps are determined for research purposes to provide fast estimates of the level of ground shaking produced by the earthquake. The maps are calculated automatically and updated as more data become available. See http://shakemap.ingv.it for additional information. The black star indicates the epicenter. The triangles show the accelerometric and velocimetric stations used in the calculation, colored according to the recorded shaking.

Intensity Shakemap

Intensity Shakemap

This map shows the distribution of instrumental intensities. The intensity is derived through an empirical law that correlates the recorded values of actual ground shaking, e.g., acceleration and velocity, with the macroseismic intensity for Italian earthquakes, as reported in the Italian Macroseismic Database (DBMI15, https://doi.org/10.13127/cpti/cpti15.3).
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap

This map shows the distribution of peak ground acceleration expressed as percent of the acceleration of gravity (i.e., g = 9.81 m/s²).
Peak velocity Shakemap

Peak velocity Shakemap

This map shows the distribution of peak ground velocities expressed in cm/s.
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 3.3 2021-09-18
14:02:51
38.3902 12.6185 11 2022-03-30
13:04:07
Bollettino Sismico Italiano INGV 95779051
Reviewed
Rev100
ML 3.4 2021-09-18
14:02:51
38.2762 12.6177 26 2021-09-18
14:13:39
Sala Sismica INGV-Roma 95590131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-18 14:02:51 ± 0.16
Latitude 38.3902 ± 0.0117
Longitude 12.6185 ± 0.0103
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 95779051

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1173
Semi-minor axis of confidence ellipse (meter) 694
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 200
Circular confidence region, given by single value of horizontal uncertainty (meter) 1170.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 84
Number of defining phases 84
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.35343
Epicentral distance of station farthest from the epicenter (degree) 4.98404
Number of stations at which the event was observed 76
Number of stations from which data was used for origin computation 76
Magnitudes information

ML:3.4

Field Value
Value 3.4
Uncertainty 0.3
Num. used stations 124
Type of magnitude ML
Reference to an origin 95590131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-18 14:13:38

ML:3.3

Field Value
Value 3.3
Uncertainty 0.3
Num. used stations 129
Type of magnitude ML
Reference to an origin 95779051
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-01 16:31:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
RD.PGF.BHZ. 2021-09-18T14:04:10.25 0.3 undecidable manual P 328 4.9840 38 3.61 1
IV.AGLI.HHZ. 2021-09-18T14:03:52.40 0.3 undecidable manual P 317 3.8059 38 2.03 8
IV.BULT.EHZ. 2021-09-18T14:03:47.39 0.3 undecidable manual P 309 3.4804 38 1.52 12
TV.SU26.HHZ. 2021-09-18T14:03:43.59 0.3 undecidable manual P 284 3.2996 38 0.22 19
IV.SENA.HHZ. 2021-09-18T14:03:42.51 0.3 undecidable manual P 311 3.1899 38 0.66 18
IV.CELI.HHZ. 2021-09-18T14:03:41.20 0.3 undecidable manual P 70 3.1908 38 -0.67 17
IV.DGI.HHZ. 2021-09-18T14:03:40.22 0.3 undecidable manual P 311 3.0217 38 0.69 18
IV.PLAC.HHZ. 2021-09-18T14:03:38.10 0.3 undecidable manual P 88 2.9911 38 -1.01 15
IV.GRI.EHZ. 2021-09-18T14:03:37.88 0.3 undecidable manual P 81 3.0001 38 -1.35 13
IV.CAR1.HHZ. 2021-09-18T14:03:37.41 0.3 undecidable manual P 72 2.9273 38 -0.82 16
IV.GRIS.EHZ. 2021-09-18T14:03:36.61 0.6 undecidable manual P 61 2.8500 38 -0.55 12
IV.CET2.HHZ. 2021-09-18T14:03:36.05 0.3 undecidable manual P 65 2.8311 38 -0.85 16
MN.VSL.HHZ. 2021-09-18T14:03:35.97 0.3 undecidable manual P 295 2.7501 38 0.18 21
IV.SOI.EHZ. 2021-09-18T14:03:34.45 0.3 undecidable manual P 96 2.7151 38 -0.86 17
IV.MTTG.HHZ. 2021-09-18T14:03:31.13 0.3 undecidable manual P 98 2.4507 38 -0.52 27
IV.HAVL.HHZ. 2021-09-18T14:03:31.26 0.3 undecidable manual P 125 2.4426 38 -0.27 29
IV.SSY.HHZ. 2021-09-18T14:03:29.55 0.3 undecidable manual P 122 2.2978 38 0.02 34
IV.HAGA.HHZ. 2021-09-18T14:03:29.43 0.3 undecidable manual P 118 2.2861 38 0.05 34
IV.HCRL.HHZ. 2021-09-18T14:03:28.28 0.3 undecidable manual P 119 2.2033 38 0.05 36
IV.ESLN.HHZ. 2021-09-18T14:03:26.68 0.6 undecidable manual P 110 1.9803 38 1.53 16
IV.EMFO.HHE. 2021-09-18T14:03:26.70 0.3 undecidable manual P 108 2.0514 38 0.56 36
IV.EPDN.HHZ. 2021-09-18T14:03:26.73 0.6 undecidable manual P 108 1.9875 38 1.49 16
IV.EMPL.HHZ. 2021-09-18T14:03:26.24 0.3 undecidable manual P 110 1.9830 38 1.05 31
IV.EPIT.HHN. 2021-09-18T14:03:26.17 0.6 undecidable manual P 106 2.0028 38 0.71 24
IV.HVZN.HHZ. 2021-09-18T14:03:26.56 0.3 undecidable manual P 126 2.0523 38 0.42 38
IV.EMCN.HHN. 2021-09-18T14:03:26.74 0.6 undecidable manual P 107 1.9920 38 1.43 16
IV.ESML.HHZ. 2021-09-18T14:03:26.20 0.6 undecidable manual P 113 1.9407 38 1.6 15
IV.EMNR.HHZ. 2021-09-18T14:03:26.00 0.6 undecidable manual P 106 1.9776 38 0.88 22
IV.MPNC.HHZ. 2021-09-18T14:03:26.14 0.3 undecidable manual P 96 2.1593 38 -1.48 22
IV.ESVO.HHE. 2021-09-18T14:03:26.28 0.3 undecidable manual P 108 1.9326 38 1.79 20
IV.ECHR.HHE. 2021-09-18T14:03:26.04 0.6 undecidable manual P 111 1.9380 38 1.47 17
IV.HVIT.HHZ. 2021-09-18T14:03:25.32 0.3 undecidable manual P 132 2.0532 38 -0.84 35
IV.IST3.HHZ. 2021-09-18T14:03:25.76 0.6 undecidable manual P 78 2.0801 38 -0.77 22
IV.EMSG.HHZ. 2021-09-18T14:03:25.26 0.3 undecidable manual P 107 1.9192 38 0.95 34
IV.ECBD.HHN. 2021-09-18T14:03:25.91 0.6 undecidable manual P 107 2.0343 38 0.01 28
IV.HLNI.HHZ. 2021-09-18T14:03:25.99 0.3 undecidable manual P 120 2.0603 38 -0.26 41
IV.ESCV.HHN. 2021-09-18T14:03:24.90 0.3 undecidable manual P 110 1.8436 38 1.63 24
IV.SCIAR.HHZ. 2021-09-18T14:03:24.07 0.6 undecidable manual S 116 0.9955 50 0.92 33
IV.ECZM.HHN. 2021-09-18T14:03:24.74 0.6 undecidable manual P 109 1.9156 38 0.49 27
IV.ESPC.HHN. 2021-09-18T14:03:24.40 0.6 undecidable manual P 109 2.0199 38 -1.3 19
IV.EPZF.HHZ. 2021-09-18T14:03:24.87 0.3 undecidable manual P 107 1.8490 38 1.54 26
IV.MILZ.HHZ. 2021-09-18T14:03:24.54 0.3 undecidable manual P 93 2.0514 38 -1.6 23
IV.RAFF.HHZ. 2021-09-18T14:03:22.94 0.3 undecidable manual P 130 1.8049 38 0.22 47
IV.CAGR.HHE. 2021-09-18T14:03:22.40 0.3 undecidable manual P 117 1.6682 38 1.55 28
IV.IVUG.HHZ. 2021-09-18T14:03:21.56 0.6 undecidable manual P 89 1.8544 38 -1.85 14
IV.IVPL.HHZ. 2021-09-18T14:03:21.50 0.6 undecidable manual P 90 1.8499 38 -1.85 14
IV.CPTP.HHZ. 2021-09-18T14:03:21.57 0.3 undecidable manual P 128 1.5639 50 2.23 17
IV.ILOS.HHZ. 2021-09-18T14:03:21.60 0.3 undecidable manual P 88 1.8247 38 -1.4 29
IV.MUCR.HHZ. 2021-09-18T14:03:21.52 0.3 undecidable manual P 100 1.8049 38 -1.2 34
IV.IVGP.HHN. 2021-09-18T14:03:21.49 0.3 undecidable manual P 89 1.8346 38 -1.65 25
IV.GALF.HHZ. 2021-09-18T14:03:21.28 0.6 undecidable manual P 113 1.6763 38 0.33 33
IV.CLTA.HHZ. 2021-09-18T14:03:20.43 0.3 undecidable manual P 139 1.6260 38 0.18 52
IV.MCPD.HHZ. 2021-09-18T14:03:19.38 0.3 undecidable manual P 99 1.6799 38 -1.62 29
IV.CMDO.HHZ. 2021-09-18T14:03:18.09 0.6 undecidable manual P 134 1.3256 50 2.82 4
IV.MSFR.HHZ. 2021-09-18T14:03:18.43 0.3 undecidable manual P 102 1.5900 38 -1.32 36
IV.IFIL.HHZ. 2021-09-18T14:03:17.44 0.3 undecidable manual P 83 1.5405 50 -1.5 31
IV.RESU.HHZ. 2021-09-18T14:03:16.83 0.6 undecidable manual P 123 1.3544 50 1.08 29
IV.SOLUN.HHZ. 2021-09-18T14:03:16.71 0.6 undecidable manual S 112 0.7770 50 0.04 48
IV.IACL.HHE. 2021-09-18T14:03:15.33 0.3 undecidable manual P 83 1.3661 50 -0.63 53
IV.PETRA.HHZ. 2021-09-18T14:03:14.76 0.3 undecidable manual P 115 1.3013 50 -0.08 65
IV.PLLN.EHZ. 2021-09-18T14:03:13.91 0.3 undecidable manual P 108 1.2617 50 -0.25 63
IV.CRJA.HHZ. 2021-09-18T14:03:13.50 0.3 undecidable manual S 153 0.6619 50 0.24 67
IV.CSLB.HHZ. 2021-09-18T14:03:12.81 0.3 undecidable manual P 111 1.2177 50 -0.61 58
IV.ALJA.HHZ. 2021-09-18T14:03:12.30 0.3 undecidable manual P 125 1.0990 50 0.91 51
IV.MCT.HHN. 2021-09-18T14:03:12.77 0.3 undecidable manual P 134 1.0963 50 1.44 38
IV.MFNL.HHZ. 2021-09-18T14:03:12.97 0.6 undecidable manual S 158 0.6448 50 0.21 45
IV.GIB.HHZ. 2021-09-18T14:03:12.84 0.3 undecidable manual P 109 1.1754 50 0.15 65
IV.MPG.HHZ. 2021-09-18T14:03:11.76 0.6 undecidable manual S 111 0.6250 50 -0.4 48
IV.SCIAR.HHZ. 2021-09-18T14:03:09.95 0.3 undecidable manual P 116 0.9955 50 0.34 65
IV.SCIAC.HHZ. 2021-09-18T14:03:09.05 0.3 undecidable manual P 156 0.9524 50 0.17 67
MN.CLTB.HHZ. 2021-09-18T14:03:08.99 0.3 undecidable manual P 150 0.9380 50 0.36 64
IV.MBFT.HHZ. 2021-09-18T14:03:07.46 0.6 undecidable manual S 149 0.5162 50 -1.47 34
IV.LEVAN.EHZ. 2021-09-18T14:03:06.62 0.3 undecidable manual S 208 0.4524 50 -0.44 76
IV.MMGO.HHE. 2021-09-18T14:03:05.96 0.3 undecidable manual P 159 0.7806 50 0.03 71
IV.SOLUN.HHZ. 2021-09-18T14:03:05.09 0.3 undecidable manual P 112 0.7770 50 -0.78 60
IV.MARS.HHE. 2021-09-18T14:03:04.21 0.3 undecidable manual P 184 0.6376 50 0.71 60
IV.CRJA.HHZ. 2021-09-18T14:03:04.25 0.3 undecidable manual P 153 0.6619 50 0.35 69
IV.MFNL.HHZ. 2021-09-18T14:03:03.65 0.3 undecidable manual P 158 0.6448 50 0.03 73
IV.USI.HHZ. 2021-09-18T14:03:03.28 0.3 undecidable manual P 54 0.5414 50 1.44 49
IV.ERC.EHZ. 2021-09-18T14:03:03.31 0.3 undecidable manual S 184 0.3534 50 -0.81 72
IV.MPG.HHZ. 2021-09-18T14:03:02.34 0.3 undecidable manual P 111 0.6250 50 -0.93 58
IV.MBFT.HHZ. 2021-09-18T14:03:00.06 0.3 undecidable manual P 149 0.5162 50 -1.35 50
IV.LEVAN.EHZ. 2021-09-18T14:02:59.99 0.1 undecidable manual P 208 0.4524 50 -0.34 100
IV.ERC.EHZ. 2021-09-18T14:02:57.82 0.1 undecidable manual P 184 0.3534 50 -0.8 90
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ERC.EHN. ML:3.2 0.006485 0.5 AML other m 2021-09-18T14:03:05.87
IV.ERC.EHE. ML:3.2 0.0055332865 0.3584 AML other m 2021-09-18T14:03:06.22
IV.LEVAN.EHN. ML:3.0 0.0023250475 0.3008 AML other m 2021-09-18T14:03:10.56
IV.MBFT.HHN. ML:3.3 0.004638985500000001 0.2368 AML other m 2021-09-18T14:03:11.23
IV.MBFT.HNN. ML:2.4 0.0005865 0.24 AML other m 2021-09-18T14:03:11.11
IV.MBFT.HHE. ML:3.3 0.00401363 0.3648 AML other m 2021-09-18T14:03:12.04
IV.MBFT.HNE. ML:2.3 0.00048159854999999994 0.3584 AML other m 2021-09-18T14:03:12.06
IV.LEVAN.EHE. ML:2.9 0.0020801525 0.48 AML other m 2021-09-18T14:03:13.09
IV.MPG.HHN. ML:3.6 0.0062900000000000005 1.48 AML other m 2021-09-18T14:03:14.78
IV.MPG.HHE. ML:3.6 0.0062564875 0.4544 AML other m 2021-09-18T14:03:14.79
IV.MFNL.HHN. ML:3.1 0.001857007 0.3968 AML other m 2021-09-18T14:03:16.92
IV.CRJA.HHE. ML:3.5 0.004620957 0.5184 AML other m 2021-09-18T14:03:17.23
IV.USI.HHN. ML:4.2 0.031374490000000005 0.4608 AML other m 2021-09-18T14:03:16.86
IV.USI.HHE. ML:3.6 0.00846 0.32 AML other m 2021-09-18T14:03:18.61
IV.CRJA.HHN. ML:3.5 0.005175 0.46 AML other m 2021-09-18T14:03:18.85
IV.SOLUN.HHN. ML:3.7 0.00615 0.36 AML other m 2021-09-18T14:03:19.34
IV.RESU.HHE. ML:3.6 0.001835 1.5 AML other m 2021-09-18T14:03:19.20
IV.SOLUN.HHE. ML:3.6 0.004900000000000001 0.62 AML other m 2021-09-18T14:03:23.28
IV.SCIAR.HNN. ML:3.7 0.004361788000000001 0.5952 AML other m 2021-09-18T14:03:25.49
MN.CLTB.HHE. ML:4.4 0.023657710000000002 0.544 AML other m 2021-09-18T14:03:27.12
MN.CLTB.HHN. ML:4.6 0.03743492999999999 0.6208 AML other m 2021-09-18T14:03:27.73
IV.SCIAR.HHN. ML:3.8 0.0048322385 0.3968 AML other m 2021-09-18T14:03:28.02
IV.IST3.HHE. ML:3.2 0.00035099440000000006 0.16 AML other m 2021-09-18T14:03:28.10
IV.IST3.HHN. ML:3.4 0.000507 0.2 AML other m 2021-09-18T14:03:28.10
IV.IST3.HNE. ML:3.2 0.0003558533 0.1664 AML other m 2021-09-18T14:03:28.11
IV.SCIAR.HNE. ML:3.6 0.0033200000000000005 0.38 AML other m 2021-09-18T14:03:28.03
IV.IST3.HNN. ML:3.3 0.00041252725 0.1664 AML other m 2021-09-18T14:03:28.48
IV.SCIAC.HHN. ML:3.3 0.001758573 0.5824 AML other m 2021-09-18T14:03:29.24
IV.SCIAR.HHE. ML:3.6 0.0034115729999999998 0.6592 AML other m 2021-09-18T14:03:30.01
IV.SCIAC.HHE. ML:3.3 0.002 1.14 AML other m 2021-09-18T14:03:31.57
IV.MFNL.HHE. ML:3.1 0.0022299999999999998 0.56 AML other m 2021-09-18T14:03:32.87
IV.GIB.HHE. ML:3.6 0.0028827755000000004 0.7616 AML other m 2021-09-18T14:03:34.14
IV.ALJA.HHN. ML:3.5 0.00229474 0.7168 AML other m 2021-09-18T14:03:35.75
IV.ALJA.HHE. ML:3.8 0.00418 1.32 AML other m 2021-09-18T14:03:36.82
IV.CSLB.HHE. ML:3.0 0.000637 0.5 AML other m 2021-09-18T14:03:37.03
MN.VSL.HHE. ML:3.2 0.00020655109999999997 0.6016 AML other m 2021-09-18T14:03:36.83
IV.CSLB.HHN. ML:3.2 0.001019 0.5 AML other m 2021-09-18T14:03:37.16
IV.PLLN.EHN. ML:3.7 0.0031073309999999996 0.7552 AML other m 2021-09-18T14:03:37.48
IV.CAR1.HHE. ML:3.0 0.00010603989999999999 0.2368 AML other m 2021-09-18T14:03:38.15
IV.GIB.HHN. ML:3.7 0.0034249999999999997 0.54 AML other m 2021-09-18T14:03:38.90
IV.PLAC.HHE. ML:2.8 0.000059344865 0.3584 AML other m 2021-09-18T14:03:39.39
MN.VSL.HHN. ML:3.2 0.000193 1.52 AML other m 2021-09-18T14:03:39.99
IV.PLLN.EHE. ML:3.6 0.002348356 0.64 AML other m 2021-09-18T14:03:45.44
IV.PETRA.HHN. ML:3.4 0.0015249999999999999 0.82 AML other m 2021-09-18T14:03:45.91
IV.SOI.EHN. ML:3.0 0.00011350000000000001 0.56 AML other m 2021-09-18T14:03:47.13
IV.RESU.HHN. ML:3.6 0.0021377975 0.864 AML other m 2021-09-18T14:03:48.36
IV.IFIL.HHN. ML:3.5 0.00127 0.44 AML other m 2021-09-18T14:03:48.85
IV.MCPD.HHE. ML:3.2 0.0005070824000000001 0.7808 AML other m 2021-09-18T14:03:48.50
IV.PETRA.HHE. ML:3.5 0.0017749999999999999 0.6 AML other m 2021-09-18T14:03:51.36
IV.IFIL.HHE. ML:4.0 0.0035499999999999998 0.94 AML other m 2021-09-18T14:03:51.70
IV.GALF.HHE. ML:3.7 0.0019399999999999999 0.52 AML other m 2021-09-18T14:03:51.34
IV.GALF.HNE. ML:2.8 0.0002385 0.48 AML other m 2021-09-18T14:03:51.61
IV.CPTP.HHE. ML:3.3 0.0007769999999999999 0.74 AML other m 2021-09-18T14:03:55.11
IV.AGLI.HHN. ML:3.0 0.000043932159999999996 0.3392 AML other m 2021-09-18T14:03:55.62
IV.IVPL.HHN. ML:3.3 0.000641 0.5 AML other m 2021-09-18T14:03:56.57
IV.CMDO.HHN. ML:3.1 0.000661 1.1 AML other m 2021-09-18T14:03:56.21
IV.HCRL.HHN. ML:3.3 0.00041000000000000005 0.48 AML other m 2021-09-18T14:03:57.31
IV.ILOS.HHE. ML:3.8 0.00165 0.5 AML other m 2021-09-18T14:03:57.68
IV.HCRL.HHE. ML:3.2 0.000315 0.42 AML other m 2021-09-18T14:03:58.59
IV.AGLI.HHE. ML:3.0 0.000044035594999999995 0.4224 AML other m 2021-09-18T14:03:58.75
IV.EPZF.HHN. ML:3.6 0.001201 1.46 AML other m 2021-09-18T14:03:58.94
IV.RAFF.HHN. ML:3.3 0.0005665000000000001 1.42 AML other m 2021-09-18T14:03:59.80
IV.HAGA.HHN. ML:3.3 0.00032950000000000004 0.58 AML other m 2021-09-18T14:03:59.40
IV.RAFF.HHE. ML:3.3 0.0005935000000000001 1.52 AML other m 2021-09-18T14:03:59.21
IV.MSFR.HHE. ML:3.0 0.000377 0.78 AML other m 2021-09-18T14:03:59.33
IV.IVPL.HHE. ML:3.3 0.0005924261000000001 0.6016 AML other m 2021-09-18T14:03:59.81
IV.MSFR.HHN. ML:3.0 0.000338 0.82 AML other m 2021-09-18T14:03:59.77
IV.HVIT.HHN. ML:3.2 0.00039 0.6 AML other m 2021-09-18T14:04:00.64
IV.ILOS.HNN. ML:4.0 0.002685 0.52 AML other m 2021-09-18T14:04:00.73
IV.ILOS.HHN. ML:4.0 0.002781088 0.5184 AML other m 2021-09-18T14:04:00.74
IV.CLTA.HHE. ML:2.8 0.00024259154999999998 0.48 AML other m 2021-09-18T14:04:01.92
IV.EPZF.HHE. ML:3.6 0.001285 0.56 AML other m 2021-09-18T14:04:01.50
IV.ESML.HHN. ML:3.2 0.00042100000000000004 0.7 AML other m 2021-09-18T14:04:01.54
IV.ESML.HNN. ML:3.2 0.000441 0.74 AML other m 2021-09-18T14:04:01.54
IV.HLNI.HHN. ML:3.1 0.000302338 0.544 AML other m 2021-09-18T14:04:01.65
IV.ESML.HHE. ML:3.4 0.0006775 0.66 AML other m 2021-09-18T14:04:02.54
IV.ESML.HNE. ML:3.4 0.0006277127 0.6592 AML other m 2021-09-18T14:04:02.54
IV.CMDO.HHE. ML:3.1 0.00063089775 1.2224 AML other m 2021-09-18T14:04:03.06
IV.EMSG.HHE. ML:3.6 0.000995 1.38 AML other m 2021-09-18T14:04:02.93
IV.MUCR.HHN. ML:3.3 0.0006215 0.7 AML other m 2021-09-18T14:04:03.74
IV.HLNI.HHE. ML:3.1 0.0002945 0.46 AML other m 2021-09-18T14:04:04.23
IV.MUCR.HHE. ML:3.3 0.0005989999999999999 0.58 AML other m 2021-09-18T14:04:04.87
IV.GALF.HHN. ML:3.7 0.00176 0.68 AML other m 2021-09-18T14:04:05.08
IV.GALF.HNN. ML:2.9 0.000296 0.66 AML other m 2021-09-18T14:04:05.10
IV.SSY.HHN. ML:4.2 0.0027258564999999998 0.3648 AML other m 2021-09-18T14:04:05.45
IV.CLTA.HHN. ML:2.9 0.0002685 1.06 AML other m 2021-09-18T14:04:06.14
IV.HAGA.HHE. ML:3.2 0.00032299999999999994 0.5 AML other m 2021-09-18T14:04:06.65
IV.HVZN.HNE. ML:3.9 0.0017966505 0.736 AML other m 2021-09-18T14:04:07.62
IV.HVZN.HHE. ML:3.9 0.00189 0.74 AML other m 2021-09-18T14:04:07.99
IV.MPNC.HHE. ML:3.4 0.00055088905 0.5184 AML other m 2021-09-18T14:04:07.94
IV.MILZ.HHE. ML:3.9 0.0016892285 0.6016 AML other m 2021-09-18T14:04:07.78
IV.HVIT.HHE. ML:3.2 0.000374 1.4 AML other m 2021-09-18T14:04:08.22
IV.MILZ.HHN. ML:3.5 0.000759 1.12 AML other m 2021-09-18T14:04:08.25
IV.HVZN.HNN. ML:3.8 0.001545 1.24 AML other m 2021-09-18T14:04:09.79
IV.HVZN.HHN. ML:3.8 0.0015750000000000002 1.24 AML other m 2021-09-18T14:04:09.79
IV.ILOS.HNE. ML:3.7 0.001495 0.62 AML other m 2021-09-18T14:04:10.35
IV.CPTP.HHN. ML:3.5 0.00126 1.06 AML other m 2021-09-18T14:04:10.89
IV.CAR1.HNE. ML:3.3 0.000188 0.34 AML other m 2021-09-18T14:04:13.53
IV.MPNC.HHN. ML:3.5 0.0006385000000000001 1.34 AML other m 2021-09-18T14:04:15.14
IV.CET2.HHN. ML:3.0 0.00009763005999999999 0.4032 AML other m 2021-09-18T14:04:15.51
IV.DGI.HNN. ML:2.9 0.00006843721499999999 0.992 AML other m 2021-09-18T14:04:15.89
IV.DGI.HHN. ML:2.8 0.00005730193 0.96 AML other m 2021-09-18T14:04:15.90
IV.DGI.HHE. ML:2.6 0.000033474370000000004 0.48 AML other m 2021-09-18T14:04:15.60
IV.SSY.HHE. ML:3.7 0.00088 0.44 AML other m 2021-09-18T14:04:15.74
IV.CAR1.HHN. ML:3.2 0.00016849999999999998 0.42 AML other m 2021-09-18T14:04:15.80
IV.CAR1.HNN. ML:3.2 0.000155 0.42 AML other m 2021-09-18T14:04:15.81
IV.EMSG.HHN. ML:3.5 0.0009145 0.88 AML other m 2021-09-18T14:04:16.08
IV.SOI.EHE. ML:2.9 0.0001024 1.26 AML other m 2021-09-18T14:04:16.08
IV.MTTG.HHN. ML:3.1 0.00021300000000000003 0.62 AML other m 2021-09-18T14:04:21.28
IV.MTTG.HHE. ML:3.1 0.00019 0.68 AML other m 2021-09-18T14:04:21.56
IV.PLAC.HNN. ML:3.6 0.0003957641 1.5232 AML other m 2021-09-18T14:04:21.22
IV.PLAC.HNE. ML:3.6 0.00040434185000000003 1.568 AML other m 2021-09-18T14:04:21.20
IV.SENA.HHE. ML:3.7 0.0004385 1.5 AML other m 2021-09-18T14:04:23.77
IV.GRI.EHN. ML:2.9 0.0000807 1.52 AML other m 2021-09-18T14:04:23.81
IV.HAVL.HHN. ML:3.4 0.000393 1.16 AML other m 2021-09-18T14:04:23.08
IV.SENA.HHN. ML:3.7 0.00037288410000000006 0.576 AML other m 2021-09-18T14:04:23.34
IV.PLAC.HHN. ML:3.1 0.00011899999999999999 0.66 AML other m 2021-09-18T14:04:24.57
IV.HAVL.HHE. ML:3.3 0.0003116372 0.4224 AML other m 2021-09-18T14:04:24.66
IV.CELI.HHN. ML:2.6 0.00003135 1.58 AML other m 2021-09-18T14:04:24.92
IV.DGI.HNE. ML:2.8 0.00006382995 1.1648 AML other m 2021-09-18T14:04:25.28
IV.GRI.EHE. ML:2.9 0.0000738 0.74 AML other m 2021-09-18T14:04:25.40
TV.SU26.HHE. ML:3.6 0.00028778760000000006 0.5248 AML other m 2021-09-18T14:04:26.78
IV.CET2.HHE. ML:2.9 0.00009035 0.76 AML other m 2021-09-18T14:04:27.26
IV.BULT.EHE. ML:3.2 0.00009775 0.32 AML other m 2021-09-18T14:04:28.19
TV.SU26.HHN. ML:3.5 0.0002445 0.42 AML other m 2021-09-18T14:04:29.42
IV.BULT.EHN. ML:3.2 0.00011242007500000001 0.3008 AML other m 2021-09-18T14:04:29.72
IV.GRIS.EHN. ML:2.5 0.000034178249999999994 1.0368 AML other m 2021-09-18T14:04:38.54
IV.CELI.HNN. ML:2.8 0.000053104025 0.96 AML other m 2021-09-18T14:04:42.67
IV.GRIS.EHE. ML:2.7 0.00005176638999999999 1.1584 AML other m 2021-09-18T14:04:43.00
IV.CELI.HNE. ML:2.8 0.000048571840000000004 0.8448 AML other m 2021-09-18T14:04:50.22
IV.CELI.HHE. ML:2.6 0.00003095 1.04 AML other m 2021-09-18T14:04:52.78
TDMT - Time Domain Moment Tensor

TDMT details

Field Value
Magnitude3.8
Scalar Moment5.21836E+21 dyne-cm
Computed depth22 km
QualityCa
Variance Reduction34.31%
Double Couple68%
CLVD32%
ISO0%
Model usedCIA
Modeautomatic
Statuspreliminary

Moment Tensor Components

Component Value
Mrr-9.743E+20
Mtt5.0263E+21
Mpp-4.052E+21
Mrt7.18E+19
Mrp5.263E+20
Mtp-2.4986E+21

Nodal Planes

Name Strike Dip Rake
PN114985-6
PN224084-175

Fault Plane solution

Focal Mechanism

psmeca (GMT documentation)

12.6177 38.2762 22 149 85 -6 240 84 -175 5.21836 21 13.1177 38.7762

TDMT references

More info and references

Station Distribution

Station Distribution

TDMT station details

Sta Dist Azi V R zcor
MBFT 47 141.1 36.59% 97
SCIAC 94.5 153.1 18.07% 105
SOLUN 82.7 104 10.45% 101
CLTB 93.6 145.6 45.64% 105
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, http://terremoti.ingv.it/tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download