Earthquake with magnitude of ML 3.1 on date 26-05-2020 and time 23:06:55 (UTC) in region Tirreno Meridionale (MARE)

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

  • 26-05-2020 23:06:55 (UTC)
  • 27-05-2020 01:06:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.4740, 13.6340 at 21 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
45 Km N of Bagheria (55387 inhabitants)
46 Km NE of Palermo (674435 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
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 3.1 2020-05-26
23:06:55
38.4743 13.6338 21 2020-11-19
12:36:50
Bollettino Sismico Italiano INGV 80436271
Reviewed
Rev100
ML 3.0 2020-05-26
23:06:55
38.4158 13.6103 10 2020-05-26
23:23:20
Sala Sismica INGV-Roma 79596891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-26 23:06:55 ± 0.21
Latitude 38.4743 ± 0.0144
Longitude 13.6338 ± 0.0138
Depth (km) 21 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 80436271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1316
Semi-minor axis of confidence ellipse (meter) 968
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 15
Circular confidence region, given by single value of horizontal uncertainty (meter) 1320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 125
Number of associated phases, regardless of their use for origin computation 50
Number of defining phases 50
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.51
Epicentral distance of station closest to the epicenter (degree) 0.37951
Epicentral distance of station farthest from the epicenter (degree) 3.48847
Number of stations at which the event was observed 42
Number of stations from which data was used for origin computation 42
Magnitudes information

ML:3.1

Field Value
Value 3.1
Uncertainty 0.3
Num. used stations 60
Type of magnitude ML
Reference to an origin 80436271
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-08-02 18:12:16

ML:3.0

Field Value
Value 3.0
Uncertainty 0.3
Num. used stations 60
Type of magnitude ML
Reference to an origin 79596891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-26 23:23:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CGL.BHZ. 2020-05-26T23:07:48.14 0.3 undecidable manual P 286 387.2235 54 -1.1 14
MN.VSL.HHZ. 2020-05-26T23:07:47.76 0.3 undecidable manual P 289 384.0267 54 -1.09 14
IV.ACATE.EHZ. 2020-05-26T23:07:45.67 0.6 undecidable manual S 154 177.9885 54 2.05 14
IV.LINA.HHZ. 2020-05-26T23:07:37.45 0.6 undecidable manual P 194 296.6808 54 -0.52 13
IV.CAR1.HHZ. 2020-05-26T23:07:30.59 1.0 undecidable manual P 68 238.7832 54 -0.19 13
IV.SSY.HHZ. 2020-05-26T23:07:25.33 0.6 undecidable manual P 139 192.9624 54 0.25 33
IV.MTTG.HHE. 2020-05-26T23:07:24.42 0.6 undecidable manual P 106 187.4679 54 0.04 36
IV.AGST.EHZ. 2020-05-26T23:07:24.85 0.6 undecidable manual P 134 194.2611 54 -0.38 32
IV.JOPP.HNN. 2020-05-26T23:07:24.54 0.6 undecidable manual P 85 195.9594 54 -0.9 27
MN.CEL.HNZ. 2020-05-26T23:07:24.65 0.6 undecidable manual P 96 197.9574 54 -1.05 25
IV.HAGA.HHZ. 2020-05-26T23:07:24.15 0.3 undecidable manual P 134 187.4679 54 -0.24 52
IV.MEU.EHZ. 2020-05-26T23:07:24.05 0.6 undecidable manual P 145 183.9825 54 0.09 36
IV.ACATE.EHZ. 2020-05-26T23:07:23.84 0.3 undecidable manual P 154 177.9885 54 0.64 49
IV.HLNI.HHZ. 2020-05-26T23:07:21.42 0.3 undecidable manual P 139 165.3123 54 -0.21 58
IV.RAFF.HHZ. 2020-05-26T23:07:21.13 0.3 undecidable manual P 155 152.8359 54 1.05 46
IV.CLTA.HHZ. 2020-05-26T23:07:20.81 0.3 undecidable manual P 169 148.8399 54 1.23 43
IV.MSRU.HHE. 2020-05-26T23:07:20.39 0.6 undecidable manual P 98 164.7129 54 -1.16 28
IV.PETRA.HHZ. 2020-05-26T23:07:20.65 0.6 undecidable manual S 149 82.5507 98 0.68 42
IV.AIO.HHE. 2020-05-26T23:07:19.61 1.0 undecidable manual P 111 150.1386 54 -0.13 21
IV.ECTS.HHZ. 2020-05-26T23:07:19.68 1.0 undecidable manual P 116 145.3434 54 0.53 19
IV.MPNC.HHN. 2020-05-26T23:07:18.91 0.6 undecidable manual P 103 153.9348 54 -1.32 27
IV.CPTP.HHZ. 2020-05-26T23:07:18.80 0.6 undecidable manual P 158 127.0728 95 2.43 11
IV.EPZF.HHZ. 2020-05-26T23:07:18.27 0.3 undecidable manual P 124 128.7711 95 1.64 35
IV.PLLN.EHZ. 2020-05-26T23:07:17.50 0.6 undecidable manual S 140 69.4749 100 0.99 38
IV.LEVAN.EHN. 2020-05-26T23:07:16.23 0.6 undecidable manual P 245 124.3866 95 0.27 44
IV.CSLB.HHZ. 2020-05-26T23:07:16.10 0.6 undecidable manual S 148 70.0743 99 -0.58 44
IV.GIB.HHZ. 2020-05-26T23:07:14.91 0.6 undecidable manual S 147 63.6918 101 -0.09 51
MN.CLTB.HHZ. 2020-05-26T23:07:14.68 0.1 undecidable manual P 200 105.9162 96 1.56 52
IV.GALF.HHZ. 2020-05-26T23:07:14.73 0.6 undecidable manual P 136 117.4935 95 -0.17 45
IV.MUCR.HHZ. 2020-05-26T23:07:14.61 0.3 undecidable manual P 114 118.0929 95 -0.39 65
IV.SCIAC.HHZ. 2020-05-26T23:07:14.54 1.0 undecidable manual P 204 115.995 95 -0.13 23
IV.SCIAR.HHZ. 2020-05-26T23:07:13.70 0.6 undecidable manual S 170 60.0954 101 -0.34 48
IV.RESU.HHZ. 2020-05-26T23:07:13.08 0.3 undecidable manual P 158 98.9232 96 1.02 53
IV.ERC.EHN. 2020-05-26T23:07:13.16 0.6 undecidable manual P 242 103.2189 96 0.45 44
IV.CRJA.HHZ. 2020-05-26T23:07:11.92 0.3 undecidable manual P 217 92.6406 97 0.83 59
IV.MSFR.HHZ. 2020-05-26T23:07:11.61 0.1 undecidable manual P 120 96.6255 97 -0.1 96
IV.PETRA.HHZ. 2020-05-26T23:07:09.57 0.1 undecidable manual P 149 82.5507 98 0.03 100
IV.MBFT.HHZ. 2020-05-26T23:07:09.88 0.3 undecidable manual P 226 83.3499 98 0.21 72
IV.IFIL.HHN. 2020-05-26T23:07:09.12 0.6 undecidable manual P 83 82.3509 98 -0.39 46
IV.SOLUN.HHZ. 2020-05-26T23:07:08.00 1.0 undecidable manual S 192 43.3233 107 -1.71 13
IV.MPG.HHZ. 2020-05-26T23:07:07.50 1.0 undecidable manual S 215 42.1245 108 -1.89 11
IV.PLLN.EHZ. 2020-05-26T23:07:07.73 0.1 undecidable manual P 140 69.4749 100 0.18 99
IV.CSLB.HHZ. 2020-05-26T23:07:07.11 0.3 undecidable manual P 148 70.0743 99 -0.54 68
IV.GIB.HHZ. 2020-05-26T23:07:06.45 0.1 undecidable manual P 147 63.6918 101 -0.22 99
IV.IACL.HHZ. 2020-05-26T23:07:06.95 0.3 undecidable manual P 84 62.9925 101 0.39 72
IV.CORL.HHZ. 2020-05-26T23:07:06.86 0.3 undecidable manual P 204 70.4739 99 -0.85 60
IV.USI.HHZ. 2020-05-26T23:07:05.49 0.3 undecidable manual P 303 47.2194 105 1.3 50
IV.SCIAR.HHZ. 2020-05-26T23:07:05.26 0.1 undecidable manual P 170 60.0954 101 -0.87 81
IV.MPG.HHZ. 2020-05-26T23:07:02.29 0.1 undecidable manual P 215 42.1245 108 -1.15 73
IV.SOLUN.HHZ. 2020-05-26T23:07:02.11 0.3 undecidable manual P 192 43.3233 107 -1.51 44
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MPG.HHN. ML:2.9 0.002105 1.46 AML other m 2020-05-26T23:07:09.18
IV.MPG.HHE. ML:2.9 0.002355 0.2 AML other m 2020-05-26T23:07:09.23
IV.SOLUN.HHE. ML:3.2 0.00475 0.28 AML other m 2020-05-26T23:07:10.39
IV.SOLUN.HHN. ML:3.2 0.004765 0.38 AML other m 2020-05-26T23:07:10.85
IV.USI.HHN. ML:3.6 0.010004999999999998 0.52 AML other m 2020-05-26T23:07:15.39
IV.SCIAR.HHN. ML:3.4 0.004715 0.36 AML other m 2020-05-26T23:07:16.61
IV.SCIAR.HNN. ML:3.4 0.004795 0.3 AML other m 2020-05-26T23:07:16.76
IV.SCIAR.HNE. ML:3.0 0.00197 0.22 AML other m 2020-05-26T23:07:16.83
IV.SCIAR.HHE. ML:3.1 0.0025499999999999997 0.38 AML other m 2020-05-26T23:07:16.73
IV.GIB.HHN. ML:3.5 0.006365 1.5 AML other m 2020-05-26T23:07:17.87
IV.CSLB.HHN. ML:3.2 0.00254 0.88 AML other m 2020-05-26T23:07:17.93
IV.CSLB.HHE. ML:3.0 0.00147 0.7 AML other m 2020-05-26T23:07:17.86
IV.CORL.HHN. ML:3.0 0.0014399999999999999 0.36 AML other m 2020-05-26T23:07:18.82
IV.PLLN.EHE. ML:3.3 0.0034950000000000003 0.86 AML other m 2020-05-26T23:07:18.38
IV.USI.HHE. ML:2.8 0.00182 0.84 AML other m 2020-05-26T23:07:18.94
IV.CORL.HHE. ML:3.2 0.0023283905000000002 0.8704 AML other m 2020-05-26T23:07:19.14
IV.GIB.HHE. ML:3.4 0.004585 1.1 AML other m 2020-05-26T23:07:19.99
IV.PLLN.EHN. ML:3.5 0.00584 0.36 AML other m 2020-05-26T23:07:19.65
IV.IACL.HHN. ML:2.8 0.0011131709999999998 0.7552 AML other m 2020-05-26T23:07:20.06
IV.IACL.HHE. ML:2.9 0.0014 1.26 AML other m 2020-05-26T23:07:20.17
IV.MBFT.HHN. ML:2.5 0.0003948264500000001 0.5248 AML other m 2020-05-26T23:07:22.69
IV.MBFT.HHE. ML:2.6 0.000498 0.86 AML other m 2020-05-26T23:07:23.83
IV.PETRA.HHE. ML:3.5 0.0038949999999999996 0.66 AML other m 2020-05-26T23:07:24.19
IV.PETRA.HHN. ML:3.3 0.00263 1.18 AML other m 2020-05-26T23:07:24.87
IV.RESU.HHN. ML:3.0 0.0011 0.52 AML other m 2020-05-26T23:07:30.28
IV.MSFR.HHE. ML:2.5 0.0002875 0.42 AML other m 2020-05-26T23:07:30.24
IV.MSFR.HHN. ML:2.5 0.00035299999999999996 0.76 AML other m 2020-05-26T23:07:32.90
MN.CLTB.HHE. ML:3.7 0.0040149999999999995 0.64 AML other m 2020-05-26T23:07:35.67
IV.RESU.HHE. ML:3.0 0.0010595000000000001 0.54 AML other m 2020-05-26T23:07:36.62
IV.CRJA.HHN. ML:3.0 0.0011 0.56 AML other m 2020-05-26T23:07:36.56
MN.CLTB.HHN. ML:4.0 0.0081 0.54 AML other m 2020-05-26T23:07:37.57
IV.CRJA.HHE. ML:3.1 0.0014849999999999998 1.22 AML other m 2020-05-26T23:07:38.91
IV.GALF.HHN. ML:3.3 0.0014399999999999999 0.52 AML other m 2020-05-26T23:07:38.41
IV.MUCR.HHN. ML:3.0 0.0007685 1.32 AML other m 2020-05-26T23:07:38.06
IV.MUCR.HHE. ML:2.9 0.000623 0.94 AML other m 2020-05-26T23:07:38.98
IV.EPZF.HHE. ML:3.4 0.0015699999999999998 0.34 AML other m 2020-05-26T23:07:39.05
IV.SCIAC.HHE. ML:2.8 0.0004535 1.38 AML other m 2020-05-26T23:07:39.13
IV.EPZF.HHN. ML:3.4 0.0014849999999999998 0.52 AML other m 2020-05-26T23:07:40.69
IV.SCIAC.HHN. ML:2.8 0.0004715 1.34 AML other m 2020-05-26T23:07:41.28
IV.HLNI.HHE. ML:2.7 0.0001945 0.36 AML other m 2020-05-26T23:07:42.44
IV.RAFF.HHE. ML:3.0 0.0005854999999999999 0.82 AML other m 2020-05-26T23:07:42.27
IV.RAFF.HHN. ML:3.0 0.00045599999999999997 0.44 AML other m 2020-05-26T23:07:43.84
IV.HLNI.HHN. ML:2.7 0.000221 0.22 AML other m 2020-05-26T23:07:43.84
IV.CLTA.HHE. ML:3.1 0.0006915000000000001 0.36 AML other m 2020-05-26T23:07:44.09
IV.CLTA.HHN. ML:2.9 0.000431 0.44 AML other m 2020-05-26T23:07:45.44
IV.GALF.HHE. ML:3.2 0.0012999999999999997 0.7 AML other m 2020-05-26T23:07:45.59
IV.CPTP.HHE. ML:2.9 0.0004904999999999999 1.28 AML other m 2020-05-26T23:07:48.65
IV.ACATE.HNE. ML:3.6 0.001335 0.48 AML other m 2020-05-26T23:07:48.07
IV.ACATE.EHE. ML:3.5 0.0012495 0.48 AML other m 2020-05-26T23:07:48.08
IV.MEU.EHE. ML:3.2 0.000597 1.7 AML other m 2020-05-26T23:07:48.11
IV.ACATE.EHN. ML:3.4 0.0008959999999999999 0.74 AML other m 2020-05-26T23:07:49.59
IV.ACATE.HNN. ML:3.4 0.0009805 0.32 AML other m 2020-05-26T23:07:49.59
IV.MEU.EHN. ML:3.2 0.000619 0.28 AML other m 2020-05-26T23:07:51.32
IV.HAGA.HHE. ML:2.9 0.00025550000000000003 0.72 AML other m 2020-05-26T23:07:54.52
IV.HAGA.HHN. ML:2.8 0.00021100000000000003 0.48 AML other m 2020-05-26T23:07:55.14
IV.CPTP.HHN. ML:2.9 0.000509 1.3 AML other m 2020-05-26T23:07:56.96
IV.AGST.EHE. ML:2.8 0.00021 0.98 AML other m 2020-05-26T23:08:02.79
IV.AGST.EHN. ML:2.9 0.0002475 1.26 AML other m 2020-05-26T23:08:15.87
IV.MCRV.HHN. ML:2.6 0.000060450000000000006 0.74 AML other m 2020-05-26T23:08:20.23
IV.MCRV.HHE. ML:2.5 0.000042050000000000006 0.88 AML other m 2020-05-26T23:08:21.60
TDMT - Time Domain Moment Tensor
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, /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