Earthquake with magnitude of ML 3.1 on date 16-10-2020 and time 04:52:57 (UTC) in region Mar Ionio Meridionale (MARE)

A magnitude ML 3.1 earthquake occured in region: Mar Ionio Meridionale (MARE), on

  • 16-10-2020 04:52:57 (UTC)
  • 16-10-2020 06:52:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.52, 16.29 at 32 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
87 Km SE of Reggio di Calabria (183035 inhabitants)
99 Km SE of Messina (238439 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 3 days preceding this event

Earthquakes of the 3 days preceding this event *

This map reports the earthquake epicenters located in the 72 hours (3 days) preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. 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 90 days preceding this event

Earthquakes of the 90 days preceding this event *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located in the 90 days preceding the time of the current earthquake occurrence, 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 from 1985 to the date of the event

Earthquakes from 1985 to the date of the event *

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 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 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
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 adjourned progressively as more data become available. See http://shakemap.rm.ingv.it/ for additional information.

The red star indicates the epicenter. The red triangles show the stations of the INGV Italian National Seismic Network and the blue triangles those of the Nationa Accelerometric Network of the Dipartimento della Protezione Civile.

Intensity Shakemap

Intensity Shakemap *

This map shows the distribution of the istrumentally derived intensities. To this purpose, it is used a conversion relation between ground acceleration and velocity, and the Mercalli Modificata (MMI - Modified Mercalli Intensity) scale. In general, the Mercalli intensity scale relies on the effects that the ground shaking produces as reported by an observer.
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap *

This map shows This map shows the distribution of peak ground acceleration expressed as per cent 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 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
Bulletin
Rev1000
ML 3.1 2020-10-16
04:52:57
37.52 16.29 32 2021-02-26
14:56:11
Bollettino Sismico Italiano INGV 85468021
Reviewed
Rev100
ML 3.0 2020-10-16
04:52:56
37.51 16.34 31 2020-10-16
05:05:35
Sala Sismica INGV-Roma 83816811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-16 04:52:57 ± 0.21
Latitude 37.52 ± 0.01
Longitude 16.29 ± 0.01
Depth (km) 32 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 85468021

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1343
Semi-minor axis of confidence ellipse (meter) 859
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 310
Circular confidence region, given by single value of horizontal uncertainty (meter) 1340
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 219
Number of associated phases, regardless of their use for origin computation 72
Number of defining phases 71
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.58546
Epicentral distance of station farthest from the epicenter (degree) 2.02617
Number of stations at which the event was observed 53
Number of stations from which data was used for origin computation 52
Magnitudes information

ML:3

Field Value
Value 3
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 83816811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-16 05:05:35

ML:3.1

Field Value
Value 3.1
Uncertainty 0.3
Num. used stations 37
Type of magnitude ML
Reference to an origin 85468021
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-25 01:33:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RAFF.HHZ. 2020-10-16T04:53:44.23 0.6 undecidable manual S 260 1.5612 54 1.3 24
IV.HPAC.HHZ. 2020-10-16T04:53:36.77 0.6 undecidable manual S 231 1.2869 54 0.4 40
IV.HVZN.HNZ. 2020-10-16T04:53:36.43 0.6 undecidable manual S 255 1.2977 54 -0.21 41
IV.HMDC.HHZ. 2020-10-16T04:53:36.80 0.6 undecidable manual S 245 1.3247 54 -0.48 39
IV.MILZ.HHZ. 2020-10-16T04:53:32.30 0.6 undecidable manual S 312 1.1251 54 -0.2 43
IV.HLNI.HHZ. 2020-10-16T04:53:31.55 0.6 undecidable manual S 262 1.1403 54 -1.31 28
IV.JOPP.HHZ. 2020-10-16T04:53:31.26 0.6 undecidable manual S 344 1.134 54 -1.45 26
IV.HAVL.HHZ. 2020-10-16T04:53:30.67 0.6 undecidable manual S 239 1.0855 54 -0.89 35
IV.MSRU.HHZ. 2020-10-16T04:53:29.18 0.6 undecidable manual S 321 0.9677 54 0.44 42
IV.PIPA.HHZ. 2020-10-16T04:53:29.97 0.3 undecidable manual P 12 2.0073 54 0.09 42
IT.LNT.HGE. 2020-10-16T04:53:29.43 0.3 undecidable manual S 258 1.0495 54 -1.27 44
IV.SSY.HHZ. 2020-10-16T04:53:29.12 0.6 undecidable manual S 250 1.0333 54 -1.19 31
IV.MPNC.HHZ. 2020-10-16T04:53:29.71 0.6 undecidable manual S 311 0.9713 54 0.88 35
IV.CET2.HHZ. 2020-10-16T04:53:29.23 0.3 undecidable manual P 353 2.0262 54 -0.91 32
IV.CSLB.HHZ. 2020-10-16T04:53:28.41 0.3 undecidable manual P 284 1.8148 54 1.19 33
IV.CELI.HHZ. 2020-10-16T04:53:28.54 0.6 undecidable manual P 5 1.8904 54 0.28 29
IV.GIB.HHE. 2020-10-16T04:53:28.63 0.3 undecidable manual P 285 1.8517 54 0.9 36
IV.HCRL.HHZ. 2020-10-16T04:53:28.98 0.6 undecidable manual S 257 1.0279 54 -1.19 31
IV.PETRA.HHN. 2020-10-16T04:53:27.80 0.6 undecidable manual P 281 1.751 54 1.47 19
IV.IACL.HHZ. 2020-10-16T04:53:27.75 3.0 undecidable manual P 304 1.831 54 0.3 46
IV.PLLN.EHZ. 2020-10-16T04:53:27.84 0.3 undecidable manual P 286 1.7627 54 1.34 31
IV.HAGA.HHZ. 2020-10-16T04:53:26.25 0.6 undecidable manual S 256 0.9326 54 -1.65 24
MN.TIP.HHZ. 2020-10-16T04:53:25.12 0.3 undecidable manual P 12 1.6997 54 -0.51 47
IV.IFIL.HHZ. 2020-10-16T04:53:25.68 0.3 undecidable manual P 308 1.7087 54 -0.07 52
IV.AGST.EHZ. 2020-10-16T04:53:24.89 0.6 undecidable manual S 253 0.8858 54 -1.88 21
IV.RAFF.HHZ. 2020-10-16T04:53:24.17 0.3 undecidable manual P 260 1.5612 54 0.46 52
IV.SERS.HHZ. 2020-10-16T04:53:23.09 0.3 undecidable manual P 11 1.5477 54 -0.44 52
MN.CEL.HHZ. 2020-10-16T04:53:23.99 0.6 undecidable manual S 337 0.8049 105 -0.55 43
IV.MSFR.HHZ. 2020-10-16T04:53:22.79 0.1 negative manual P 291 1.4389 54 0.76 66
IV.GMB.BHZ. 2020-10-16T04:53:22.76 0.6 undecidable manual S 331 0.7446 107 -0.07 48
XK.SELL.HNE. 2020-10-16T04:53:22.55 0.3 undecidable manual P 10 1.4866 54 -0.14 58
IV.CAGR.HHE. 2020-10-16T04:53:22.93 0.3 undecidable manual P 275 1.4236 54 1.12 42
IV.GALF.HHZ. 2020-10-16T04:53:22.15 0.3 undecidable manual P 279 1.3796 54 0.94 47
XK.GIZZ.HHN. 2020-10-16T04:53:22.74 0.3 undecidable manual P 357 1.4614 54 0.4 55
IV.ILOS.HHN. 2020-10-16T04:53:22.43 0.3 undecidable manual P 312 1.4065 54 0.85 48
IV.IVGP.HHN. 2020-10-16T04:53:21.02 0.3 undecidable manual P 310 1.3679 54 -0.03 63
IV.IVPL.HHZ. 2020-10-16T04:53:20.62 0.3 undecidable manual P 310 1.3436 54 -0.08 63
IV.HMDC.HHZ. 2020-10-16T04:53:20.62 0.1 undecidable manual P 245 1.3247 54 0.17 83
IV.IVUG.HHZ. 2020-10-16T04:53:20.58 0.1 undecidable manual P 311 1.3526 54 -0.25 81
IV.HVZN.HNZ. 2020-10-16T04:53:20.27 0.3 undecidable manual P 255 1.2977 54 0.19 62
IV.HPAC.HHZ. 2020-10-16T04:53:20.52 0.1 undecidable manual P 231 1.2869 54 0.59 75
IV.MTTG.HHZ. 2020-10-16T04:53:20.60 0.6 undecidable manual S 316 0.6736 109 -0.21 48
IV.MUCR.HHZ. 2020-10-16T04:53:19.56 0.1 negative manual P 296 1.2366 54 0.32 82
IV.EPZF.HHZ. 2020-10-16T04:53:18.91 0.1 undecidable manual P 285 1.1754 54 0.52 79
IV.MILZ.HHZ. 2020-10-16T04:53:17.95 0.1 undecidable manual P 312 1.1251 54 0.26 85
IV.HAVL.HHZ. 2020-10-16T04:53:17.14 0.3 undecidable manual P 239 1.0855 54 -0.01 90
IV.SOI.EHZ. 2020-10-16T04:53:17.29 0.6 undecidable manual S 341 0.5855 112 -1.07 36
IV.EMSG.HHZ. 2020-10-16T04:53:17.90 0.3 undecidable manual P 286 1.1044 54 0.5 61
IV.JOPP.HHZ. 2020-10-16T04:53:17.49 0.1 undecidable manual P 344 1.134 54 -0.32 84
IV.EMCN.HHZ. 2020-10-16T04:53:17.10 0.6 undecidable manual P 286 1.0324 54 0.69 38
IV.HLNI.HHZ. 2020-10-16T04:53:17.48 0.1 negative manual P 262 1.1403 54 -0.41 82
IV.ESML.HHZ. 2020-10-16T04:53:17.52 0.1 undecidable manual P 276 1.1233 54 -0.15 87
IV.HCRL.HHZ. 2020-10-16T04:53:16.21 0.1 negative manual P 257 1.0279 54 -0.13 89
IV.ECBD.HHN. 2020-10-16T04:53:16.28 0.1 undecidable manual P 286 0.9893 54 0.46 84
IV.SSY.HHZ. 2020-10-16T04:53:16.12 0.1 undecidable manual P 250 1.0333 54 -0.3 86
IV.EPIT.HHN. 2020-10-16T04:53:16.71 0.3 undecidable manual P 287 1.0207 54 0.47 62
IT.LNT.HGE. 2020-10-16T04:53:16.47 0.1 undecidable manual P 258 1.0495 54 -0.18 88
IV.MSRU.HHZ. 2020-10-16T04:53:15.43 0.1 undecidable manual P 321 0.9677 54 -0.09 91
IV.EVRN.HHZ. 2020-10-16T04:53:15.18 0.3 undecidable manual P 281 0.9317 54 0.16 68
IV.AIO.HHZ. 2020-10-16T04:53:15.28 0.1 negative manual P 299 0.9515 54 -0.01 93
IV.MPNC.HHZ. 2020-10-16T04:53:15.74 0.1 negative manual P 311 0.9713 54 0.17 90
IV.ECTS.HHZ. 2020-10-16T04:53:15.65 0.3 undecidable manual P 292 0.9946 54 -0.24 66
IV.PLAC.HHZ. 2020-10-16T04:53:14.46 0.1 undecidable manual P 7 0.9371 54 -0.64 80
IV.EFIU.HHE. 2020-10-16T04:53:14.68 0.1 negative manual P 288 0.8975 54 0.13 92
IV.HAGA.HHZ. 2020-10-16T04:53:14.64 0.3 undecidable manual P 256 0.9326 54 -0.39 86
IV.EPOZ.HHZ. 2020-10-16T04:53:14.52 0.1 undecidable manual P 280 0.8876 54 0.11 92
IV.FERC.HNE. 2020-10-16T04:53:14.98 0.3 undecidable manual P 352 0.9425 54 -0.19 68
IV.AGST.EHZ. 2020-10-16T04:53:13.95 0.3 undecidable manual P 253 0.8858 54 -0.43 86
IV.GMB.BHZ. 2020-10-16T04:53:12.01 0.1 undecidable manual P 331 0.7446 107 -0.09 96
MN.CEL.HHZ. 2020-10-16T04:53:12.98 0.1 undecidable manual P 337 0.8049 105 -0.11 94
IV.MTTG.HHZ. 2020-10-16T04:53:11.16 0.1 negative manual P 316 0.6736 109 0.22 95
IV.SOI.EHZ. 2020-10-16T04:53:09.49 0.1 undecidable manual P 341 0.5855 112 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SOI.EHE. ML:2.3 0.0002989686 0.2976 AML other m 2020-10-16T04:53:18.84
IV.SOI.EHN. ML:2.2 0.00024235695 0.5984 AML other m 2020-10-16T04:53:18.92
IV.MTTG.HHN. ML:2.3 0.000279774 0.6976 AML other m 2020-10-16T04:53:20.95
IV.MTTG.HHE. ML:2.4 0.0003812082 0.72 AML other m 2020-10-16T04:53:21.35
IV.GMB.BHN. ML:3.3 0.002317069 0.2016 AML other m 2020-10-16T04:53:23.07
IV.GMB.BHE. ML:3.4 0.002780266 0.6784 AML other m 2020-10-16T04:53:23.47
MN.CEL.HHE. ML:3.1 0.00130451255 0.5376 AML other m 2020-10-16T04:53:24.56
MN.CEL.HNE. ML:3.1 0.0013087074 0.5376 AML other m 2020-10-16T04:53:24.57
MN.CEL.HHN. ML:2.6 0.00043151375 0.5792 AML other m 2020-10-16T04:53:24.87
MN.CEL.HNN. ML:2.6 0.0004225975 0.3008 AML other m 2020-10-16T04:53:24.88
IV.AGST.EHE. ML:3.2 0.001722422 0.1984 AML other m 2020-10-16T04:53:25.91
IV.AGST.EHN. ML:3.2 0.001369487 0.1984 AML other m 2020-10-16T04:53:25.91
IV.HAGA.HHN. ML:3.1 0.0010807649 0.3392 AML other m 2020-10-16T04:53:26.56
IV.HAGA.HHE. ML:3.1 0.0012226204 0.56 AML other m 2020-10-16T04:53:27.24
IV.AIO.HHN. ML:2.2 0.00013165959 0.4608 AML other m 2020-10-16T04:53:28.75
IV.SERS.HNN. ML:2.2 5.738747E-5 1.1616 AML other m 2020-10-16T04:53:29.33
IV.MSRU.HHN. ML:2.8 0.00055474595 0.9216 AML other m 2020-10-16T04:53:29.30
IV.HCRL.HHN. ML:3.5 0.002633634 0.1024 AML other m 2020-10-16T04:53:29.78
IV.MPNC.HHN. ML:2.9 0.0006373079 0.5184 AML other m 2020-10-16T04:53:30.12
IV.HCRL.HHE. ML:3.7 0.003734823 0.1568 AML other m 2020-10-16T04:53:29.94
IV.MSRU.HHE. ML:2.9 0.000623705 0.32 AML other m 2020-10-16T04:53:29.88
IV.SSY.HHN. ML:3.5 0.0021977495 0.0992 AML other m 2020-10-16T04:53:30.19
IV.SSY.HHE. ML:3.2 0.0013686565 0.48 AML other m 2020-10-16T04:53:30.51
IV.HAVL.HHE. ML:3.4 0.001578565 0.16 AML other m 2020-10-16T04:53:31.67
IV.HAVL.HHN. ML:3.4 0.001751479 0.24 AML other m 2020-10-16T04:53:31.68
IV.HLNI.HHN. ML:3.1 0.00089658135 0.1024 AML other m 2020-10-16T04:53:32.33
IV.HLNI.HHE. ML:3.2 0.00098643565 0.4384 AML other m 2020-10-16T04:53:32.92
IV.MILZ.HHE. ML:3.6 0.002401843 0.4 AML other m 2020-10-16T04:53:33.16
IV.MILZ.HHN. ML:3.3 0.0013507502 0.4 AML other m 2020-10-16T04:53:33.53
IV.HMDC.HHN. ML:3 0.0005447105 0.9984 AML other m 2020-10-16T04:53:37.16
IV.HMDC.HNN. ML:3 0.0005142362 1.248 AML other m 2020-10-16T04:53:37.16
IV.HPAC.HHN. ML:3 0.0005076707 0.9216 AML other m 2020-10-16T04:53:37.95
IV.HMDC.HHE. ML:3.3 0.0009538038 0.2784 AML other m 2020-10-16T04:53:37.82
IV.HMDC.HNE. ML:3.2 0.00088441025 0.288 AML other m 2020-10-16T04:53:37.82
IV.HPAC.HHE. ML:3.1 0.00069086285 0.16 AML other m 2020-10-16T04:53:38.04
IV.IFIL.HHE. ML:3.2 0.00052101265 0.2208 AML other m 2020-10-16T04:53:46.63
IV.IFIL.HHN. ML:3 0.000358346 0.9408 AML other m 2020-10-16T04:53:47.31
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions *

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 miniseed + resp format Download