Earthquake with magnitude of ML 2.8 on date 28-09-2019 and time 18:25:20 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 2.8 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 28-09-2019 18:25:20 (UTC)
  • 28-09-2019 20:25:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.43, 15.25 at 142 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
37 Km NW of Messina (238439 inhabitants)
49 Km NW of Reggio di Calabria (183035 inhabitants)
91 Km N of Acireale (52622 inhabitants)
Recent and historical Seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours)

This map reports the earthquake epicenters located in the past 72 hours (3 days) from the time this page has been generated. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2014

Earthquakes since 1000 AD until 2014

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows 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
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 2.8 2019-09-28
18:25:20
38.43 15.25 142 2019-09-28
18:48:33
Sala Sismica INGV-Roma 72863051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-28 18:25:20 ± 0.31
Latitude 38.43 ± 0.02
Longitude 15.25 ± 0.03
Depth (km) 142 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 72863051

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2781
Semi-minor axis of confidence ellipse (meter) 1338
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 144
Circular confidence region, given by single value of horizontal uncertainty (meter) 2780
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 59
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.67903
Number of stations at which the event was observed 52
Number of stations from which data was used for origin computation 24
Magnitude information

ML:2.8

Field Value
Value 2.8
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 72863051
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-28 18:48:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.BSSO.HNZ. 2019-09-28T18:27:06.63 3.0 undecidable manual Sg 17.559999 0
IV.DGI.HHZ. 2019-09-28T18:26:51.66 3.0 undecidable manual Pg 19.610001 0
IV.PAOL.HHZ. 2019-09-28T18:26:48.93 3.0 undecidable manual Sg 11.43 0
IT.VNF1.HGZ. 2019-09-28T18:26:43.17 3.0 undecidable manual Sn -6.65 0
IV.MTMR.HNZ. 2019-09-28T18:26:40.73 3.0 undecidable manual Sg 6.86 0
IV.NOCI.HHZ. 2019-09-28T18:26:37.88 3.0 undecidable manual Sn -1.33 0
IV.RMP.HHZ. 2019-09-28T18:26:34.26 3.0 positive manual Pg 13.78 0
IV.PZUN.HHZ. 2019-09-28T18:26:27.59 3.0 undecidable manual Sn -0.83 0
IV.VVLD.HHZ. 2019-09-28T18:26:22.91 3.0 undecidable manual Pn 5.73 0
MN.KEK.HHZ. 2019-09-28T18:26:20.67 3.0 positive manual Pn 2.5 0
MN.CUC.HHZ. 2019-09-28T18:26:18.98 3.0 undecidable manual Sg 4.16 0
IV.NOCI.HHZ. 2019-09-28T18:26:05.17 3.0 negative manual Pn 0.17 0
IV.AMUR.HHZ. 2019-09-28T18:26:04.78 3.0 negative manual Pn 0.44 0
IV.MRLC.HHZ. 2019-09-28T18:26:01.12 3.0 positive manual Pn 1.2 0
IV.MARS.EHZ. 2019-09-28T18:26:00.42 3.0 positive manual Pn 1.86 0
IV.LTRZ.EHZ. 2019-09-28T18:26:00.57 3.0 positive manual Pn -1.19 0
IV.MIGL.HHZ. 2019-09-28T18:25:59.94 3.0 undecidable manual Pn -0.24 0
IV.NOV.HHZ. 2019-09-28T18:25:56.17 0.3 undecidable manual S 193 0.4101 161 1.15 51
MN.CEL.HHZ. 2019-09-28T18:25:56.19 0.6 undecidable manual S 108 0.5315 156 0.09 48
IV.MPNC.HHZ. 2019-09-28T18:25:54.58 0.6 undecidable manual S 164 0.2932 166 0.35 48
IV.SICLA.EHZ. 2019-09-28T18:25:54.77 0.6 undecidable manual S 115 0.402 161 -0.19 49
IV.SCIAC.HHZ. 2019-09-28T18:25:54.31 3.0 undecidable manual Pn -0.55 0
IV.MSRU.HHZ. 2019-09-28T18:25:53.14 0.6 undecidable manual S 129 0.2608 168 -0.91 40
IV.SALB.HHZ. 2019-09-28T18:25:52.45 0.6 undecidable manual P 30 1.679 124 0.97 25
MN.CUC.HHZ. 2019-09-28T18:25:51.29 3.0 negative manual Pn -0.01 0
IV.CLTA.HHZ. 2019-09-28T18:25:51.31 3.0 undecidable manual Pn 0.09 0
IV.MBFT.HHZ. 2019-09-28T18:25:50.97 3.0 undecidable manual Pn -3.31 0
IV.CPTP.HHZ. 2019-09-28T18:25:49.21 3.0 negative manual Pn 1.25 0
IV.RAFF.HHZ. 2019-09-28T18:25:48.29 3.0 positive manual Pn -0.27 0
MN.TIP.HHZ. 2019-09-28T18:25:48.82 3.0 negative manual Pn 0.26 0
IV.CELI.HHZ. 2019-09-28T18:25:48.80 1.0 negative manual P 45 1.3805 129 0.63 17
IV.CET2.HHZ. 2019-09-28T18:25:47.09 0.1 undecidable manual P 26 1.2285 133 0.51 75
IV.SSY.HHZ. 2019-09-28T18:25:46.37 3.0 negative manual Pn -0.83 0
IV.CAR1.HHZ. 2019-09-28T18:25:45.41 0.1 undecidable manual P 42 1.1134 136 -0.04 85
IV.PETRA.HHZ. 2019-09-28T18:25:45.16 0.6 negative manual P 237 1.072 137 0.1 43
IV.HLNI.HHZ. 2019-09-28T18:25:44.87 3.0 positive manual Pn -0.78 0
IV.PLAC.HHZ. 2019-09-28T18:25:44.00 0.1 undecidable manual P 88 0.9299 141 0.22 85
IV.HAGA.HHZ. 2019-09-28T18:25:44.76 3.0 positive manual Pn -1.09 0
IV.GIB.HHZ. 2019-09-28T18:25:44.13 0.1 undecidable manual P 246 1.0567 138 -0.77 69
IV.CAGR.HHZ. 2019-09-28T18:25:44.53 3.0 positive manual Pn -0.08 0
IV.GALF.HHZ. 2019-09-28T18:25:43.76 0.1 undecidable manual P 217 0.8966 142 0.27 86
IV.EPZF.HHZ. 2019-09-28T18:25:42.09 3.0 undecidable manual P 0.16 0
IV.MNO.SHZ. 2019-09-28T18:25:42.29 0.3 undecidable manual P 221 0.661 151 0.6 62
IV.SOI.EHZ. 2019-09-28T18:25:42.10 0.1 undecidable manual P 119 0.724 148 -0.03 94
IV.MSFR.HHZ. 2019-09-28T18:25:41.37 0.3 undecidable manual P 233 0.6502 151 -0.24 68
IV.EMSG.HHZ. 2019-09-28T18:25:41.74 3.0 negative manual P 0.02 0
IV.IACL.HHE. 2019-09-28T18:25:41.68 0.3 undecidable manual P 279 0.7078 149 -0.33 65
IV.ECTS.EHZ. 2019-09-28T18:25:41.29 0.1 undecidable manual P 191 0.5549 155 0.28 92
IV.MUCR.HHZ. 2019-09-28T18:25:41.12 0.3 undecidable manual P 218 0.4847 158 0.49 67
IV.MTTG.HHZ. 2019-09-28T18:25:41.12 0.1 undecidable manual P 140 0.5522 155 0.12 95
IT.RCU.HGE. 2019-09-28T18:25:40.24 0.3 undecidable manual P 133 0.4479 159 -0.19 72
MN.CEL.HHZ. 2019-09-28T18:25:40.43 0.1 undecidable manual P 108 0.5315 156 -0.45 89
IV.GMB.BHZ. 2019-09-28T18:25:40.78 0.1 undecidable manual P 120 0.5234 156 -0.05 97
IV.NOV.HHZ. 2019-09-28T18:25:40.51 0.1 undecidable manual P 193 0.4101 161 0.25 95
IV.AIO.HHZ. 2019-09-28T18:25:40.58 0.1 undecidable manual P 182 0.4569 159 0.1 97
IV.IVPL.HHZ. 2019-09-28T18:25:39.41 0.1 undecidable manual P 256 0.2176 170 -0.17 100
IV.MPNC.HHZ. 2019-09-28T18:25:39.39 0.3 undecidable manual P 164 0.2932 166 -0.41 71
IV.MSRU.HHZ. 2019-09-28T18:25:39.21 0.1 undecidable manual P 129 0.2608 168 -0.48 93
IV.SICLA.EHZ. 2019-09-28T18:25:39.76 0.1 undecidable manual P 115 0.402 161 -0.46 91
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NOV.HHE. ML:0 0.001038202 0.32 AML other m 2019-09-28T18:25:58.41
IV.NOV.HHN. ML:0 0.00067203685 0.5632 AML other m 2019-09-28T18:25:59.32
IV.MSRU.HHE. ML:3 0.00061121375 0.3584 AML other m 2019-09-28T18:25:56.17
IV.MSRU.HHN. ML:3.1 0.000713927 0.2944 AML other m 2019-09-28T18:25:54.54
IV.MPNC.HHE. ML:2.9 0.0004764905 0.3072 AML other m 2019-09-28T18:25:58.30
IV.MPNC.HHN. ML:3 0.0005117259 0.3584 AML other m 2019-09-28T18:25:59.21
IV.IVPL.HHE. ML:2.6 0.00022702045 0.4864 AML other m 2019-09-28T18:25:58.09
IV.IVPL.HHN. ML:2.7 0.00025260105 0.4864 AML other m 2019-09-28T18:25:58.77
IV.SICLA.EHE. ML:2.8 0.00036684705 0.256 AML other m 2019-09-28T18:25:56.23
IV.SICLA.EHN. ML:3 0.0004930631 0.3456 AML other m 2019-09-28T18:25:55.58
MN.CEL.HHE. ML:3 0.0004780869 0.5504 AML other m 2019-09-28T18:25:59.01
MN.CEL.HHN. ML:3 0.0005293883 0.3072 AML other m 2019-09-28T18:26:00.31
MN.CEL.HNE. ML:3 0.0004657121 0.5504 AML other m 2019-09-28T18:25:59.01
MN.CEL.HNN. ML:3 0.0005133081 0.2816 AML other m 2019-09-28T18:26:00.31
IV.AIO.HHE. ML:2.6 0.00020568805 0.2816 AML other m 2019-09-28T18:25:58.27
IV.AIO.HHN. ML:2.7 0.0002527236 0.4096 AML other m 2019-09-28T18:25:59.58
IV.GMB.BHE. ML:3.6 0.002063185 0.2048 AML other m 2019-09-28T18:25:57.92
IV.GMB.BHN. ML:3.7 0.002624261 0.3968 AML other m 2019-09-28T18:25:58.68
IV.MTTG.HHE. ML:2.8 0.00032602415 0.704 AML other m 2019-09-28T18:26:03.71
IV.MTTG.HHN. ML:2.9 0.0003485335 0.576 AML other m 2019-09-28T18:26:01.89
IV.MSFR.HHE. ML:1.3 9.6446610765E-6 46.2976 AML other m 2019-09-28T18:25:41.06
IV.EMSG.HHN. ML:3.2 0.0006813393 0.5248 AML other m 2019-09-28T18:25:51.61
IV.EPZF.HHE. ML:2.7 0.0002167121 0.4352 AML other m 2019-09-28T18:26:03.67
IV.SOI.EHE. ML:2.7 0.00024198205 0.4224 AML other m 2019-09-28T18:25:59.33
IV.SOI.EHN. ML:2.8 0.0002970217 0.4608 AML other m 2019-09-28T18:25:59.92
IV.MNO.SHE. ML:0 0.0001353155 0.64 AML other m 2019-09-28T18:26:01.68
IV.MNO.SHN. ML:0 0.0001556647 0.6784 AML other m 2019-09-28T18:26:03.16
IV.GALF.HNE. ML:2.5 0.000113954065 0.6784 AML other m 2019-09-28T18:25:44.44
IV.GALF.HNN. ML:2.5 0.00012223995 0.4096 AML other m 2019-09-28T18:25:56.19
IV.PLAC.HHE. ML:2.9 0.0002976405 0.32 AML other m 2019-09-28T18:26:04.49
IV.PLAC.HHN. ML:2.8 0.0002650649 0.6144 AML other m 2019-09-28T18:26:03.36
IV.PLAC.HNE. ML:2.8 0.00024962635 0.6144 AML other m 2019-09-28T18:26:03.36
IV.PLAC.HNN. ML:2.8 0.0002774403 0.32 AML other m 2019-09-28T18:26:04.49
IV.CAGR.HHE. ML:2.6 0.0001460213 0.256 AML other m 2019-09-28T18:25:47.98
IV.CAGR.HHN. ML:2.6 0.0001518875 0.2944 AML other m 2019-09-28T18:25:46.60
IV.HLNI.HHE. ML:2.1 4.5774535E-5 0.6144 AML other m 2019-09-28T18:26:05.83
IV.HLNI.HHN. ML:2.1 3.8244045E-5 0.1792 AML other m 2019-09-28T18:25:45.49
IV.PETRA.HHN. ML:1.9 3.1925465E-5 0.8576 AML other m 2019-09-28T18:26:07.51
IV.CAR1.HHE. ML:2.5 0.000104241835 0.3584 AML other m 2019-09-28T18:26:10.53
IV.CAR1.HHN. ML:2.5 0.0001127272 0.4992 AML other m 2019-09-28T18:26:09.58
IV.SSY.HHE. ML:2.7 0.00015463015 0.5888 AML other m 2019-09-28T18:26:15.72
IV.SSY.HHN. ML:3 0.00031968905 0.3584 AML other m 2019-09-28T18:26:22.41
IV.CET2.HHE. ML:2.5 8.788668E-5 0.1536 AML other m 2019-09-28T18:26:12.51
IV.CET2.HHN. ML:2.9 0.0002305179 0.2816 AML other m 2019-09-28T18:26:11.81
IV.RAFF.HHE. ML:2.3 5.9049415E-5 1.4208 AML other m 2019-09-28T18:25:58.97
IV.RAFF.HHN. ML:2.2 4.1573045E-5 1.088 AML other m 2019-09-28T18:26:11.67
IV.CELI.HNE. ML:2.3 5.007625E-5 0.8832 AML other m 2019-09-28T18:25:56.54
IV.CELI.HNN. ML:2.1 3.6608925E-5 0.7808 AML other m 2019-09-28T18:26:12.37
IV.CELI.HHE. ML:2.3 5.9426315E-5 0.5888 AML other m 2019-09-28T18:25:57.54
IV.CELI.HHN. ML:2.3 5.6902115E-5 0.3328 AML other m 2019-09-28T18:26:14.68
MN.TIP.HHE. ML:2 2.773391E-5 0.6144 AML other m 2019-09-28T18:26:15.26
MN.TIP.HHN. ML:2.3 5.112139E-5 0.5376 AML other m 2019-09-28T18:26:14.07
MN.TIP.HNE. ML:2.5 8.0632235E-5 1.0112 AML other m 2019-09-28T18:26:23.03
MN.TIP.HNN. ML:2.5 7.924868E-5 1.1392 AML other m 2019-09-28T18:25:49.22
IV.CPTP.HHE. ML:2.4 6.9748505E-5 1.2544 AML other m 2019-09-28T18:26:39.03
IV.CPTP.HHN. ML:2.4 6.2824705E-5 1.7792 AML other m 2019-09-28T18:26:15.56
MN.CUC.HHE. ML:2 2.0362055E-5 0.2048 AML other m 2019-09-28T18:26:19.02
MN.CUC.HHN. ML:1.8 1.36425795E-5 0.2816 AML other m 2019-09-28T18:26:20.78
MN.CUC.HNE. ML:2.8 0.00014453579 0.6272 AML other m 2019-09-28T18:26:21.85
MN.CUC.HNN. ML:2.6 8.9918255E-5 0.9216 AML other m 2019-09-28T18:26:31.52
IV.CLTA.HHE. ML:2.3 5.0002405E-5 0.448 AML other m 2019-09-28T18:26:18.46
IV.CLTA.HHN. ML:2.2 4.092954E-5 0.3968 AML other m 2019-09-28T18:26:18.66
IV.SALB.HHE. ML:2.2 3.561161E-5 0.3072 AML other m 2019-09-28T18:26:26.38
IV.SALB.HHN. ML:1.8 1.6778855E-5 0.448 AML other m 2019-09-28T18:25:54.70
IV.SCIAC.HHE. ML:2 2.141314E-5 0.32 AML other m 2019-09-28T18:26:22.18
IV.SCIAC.HHN. ML:2.2 3.2373835E-5 0.3712 AML other m 2019-09-28T18:26:21.42
IV.MIGL.HHE. ML:2.8 6.761527E-5 0.4608 AML other m 2019-09-28T18:27:00.00
IV.MIGL.HHN. ML:2.8 7.1955855E-5 0.9856 AML other m 2019-09-28T18:26:24.95
IV.MARS.EHE. ML:2.7 7.5588325E-5 1.8432 AML other m 2019-09-28T18:26:43.38
IV.MARS.EHN. ML:2.7 6.5660585E-5 0.8192 AML other m 2019-09-28T18:26:27.58
IV.LTRZ.HNE. ML:3.1 0.00012829092 0.8832 AML other m 2019-09-28T18:26:21.70
IV.LTRZ.HNN. ML:3.2 0.00017612335 0.8064 AML other m 2019-09-28T18:26:48.26
IV.MRLC.HHE. ML:2.1 1.7388625E-5 0.0768 AML other m 2019-09-28T18:26:20.51
IV.MRLC.HHN. ML:1.9 9.764211E-6 0.4352 AML other m 2019-09-28T18:26:08.32
IV.MRLC.HNE. ML:2.1 1.6308605E-5 0.7808 AML other m 2019-09-28T18:26:12.13
IV.MRLC.HNN. ML:2.2 1.9912775E-5 0.8064 AML other m 2019-09-28T18:26:14.10
IV.AMUR.HHE. ML:2.6 3.5382205E-5 0.2816 AML other m 2019-09-28T18:26:41.22
IV.AMUR.HHN. ML:2.6 3.760184E-5 0.2048 AML other m 2019-09-28T18:26:40.38
IV.NOCI.HHE. ML:2.7 4.8773125E-5 0.1152 AML other m 2019-09-28T18:26:40.15
IV.NOCI.HHN. ML:2.8 6.2954275E-5 0.0768 AML other m 2019-09-28T18:26:40.93
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol 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 full SEED format Download