Earthquake with magnitude of ML 2.0 on date 12-10-2021 and time 20:37:47 (UTC) in region Costa Siciliana nord occidentale (Trapani)

A magnitude ML 2.0 earthquake occured in region: Costa Siciliana nord occidentale (Trapani), on

  • 12-10-2021 20:37:47 (UTC)
  • 12-10-2021 22:37:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.2940, 12.6410 at 6 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
San Vito Lo Capo TP 16 4654 4654

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NE of Trapani (68759 inhabitants)
58 Km NE of Marsala (83194 inhabitants)
66 Km W of Palermo (674435 inhabitants)
72 Km N of Mazara del Vallo (51718 inhabitants)
80 Km W of Bagheria (55387 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 2.0 2021-10-12
20:37:47
38.2942 12.6412 6 2022-03-30
13:04:28
Bollettino Sismico Italiano INGV 99548641
Reviewed
Rev100
ML 1.9 2021-10-12
20:37:47
38.308 12.5858 10 2021-10-12
20:56:30
Sala Sismica INGV-Roma 96481691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-12 20:37:47 ± 0.32
Latitude 38.2942 ± 0.0153
Longitude 12.6412 ± 0.0206
Depth (km) 6 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99548641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2240
Semi-minor axis of confidence ellipse (meter) 1120
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 311
Circular confidence region, given by single value of horizontal uncertainty (meter) 2240.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 187
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.55
Epicentral distance of station closest to the epicenter (degree) 0.25990
Epicentral distance of station farthest from the epicenter (degree) 1.16912
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 99548641
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-07 16:16:38

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 96481691
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-12 20:56:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SCIAR.HHZ. 2021-10-12T20:38:19.20 0.3 undecidable manual S 112 104.3178 50 0.78 53
IV.ALJA.HHZ. 2021-10-12T20:38:08.28 0.3 undecidable manual P 122 114.4965 50 1.57 35
IV.CSLB.HHZ. 2021-10-12T20:38:08.21 0.3 undecidable manual P 107 129.7701 50 -0.86 49
IV.USI.HHZ. 2021-10-12T20:38:08.29 0.3 undecidable manual S 45 65.49 50 0.24 68
IV.MPG.HHZ. 2021-10-12T20:38:07.22 0.6 undecidable manual S 103 64.3911 50 -0.52 43
IV.SCIAR.HHZ. 2021-10-12T20:38:05.47 0.1 undecidable manual P 112 104.3178 50 0.32 83
IV.SCIAC.HHN. 2021-10-12T20:38:05.02 0.3 undecidable manual P 155 95.238 50 1.29 43
MN.CLTB.HHN. 2021-10-12T20:38:04.35 0.3 undecidable manual P 147 94.0392 50 0.8 54
IV.MBFT.HHZ. 2021-10-12T20:38:02.97 0.3 undecidable manual S 145 47.2194 50 -0.21 71
IV.LEVAN.EHN. 2021-10-12T20:38:02.35 0.6 undecidable manual S 218 42.3243 98 0.5 45
IV.SOLUN.HHE. 2021-10-12T20:38:01.13 0.3 undecidable manual P 106 80.8635 50 -0.4 64
IV.MMGO.HHZ. 2021-10-12T20:38:00.94 0.3 undecidable manual P 157 75.9684 50 0.16 68
IV.MARS.HHN. 2021-10-12T20:37:59.60 0.3 undecidable manual P 186 60.3951 50 1.24 47
IV.USI.HHZ. 2021-10-12T20:37:58.96 0.1 undecidable manual P 45 65.49 50 -0.19 92
IV.MPG.HHZ. 2021-10-12T20:37:58.71 0.3 undecidable manual P 103 64.3911 50 -0.27 68
IV.ERC.EHN. 2021-10-12T20:37:56.83 0.6 undecidable manual S 189 28.8489 102 -0.41 47
IV.MBFT.HHZ. 2021-10-12T20:37:55.27 0.1 undecidable manual P 145 47.2194 50 -1.07 70
IV.LEVAN.EHN. 2021-10-12T20:37:55.16 0.3 undecidable manual P 218 42.3243 98 -0.42 68
IV.MTGR.HHZ. 2021-10-12T20:37:55.14 0.3 undecidable manual P 167 45.621 50 -0.95 55
IV.ERC.EHN. 2021-10-12T20:37:52.81 0.1 undecidable manual P 189 28.8489 102 -0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MBFT.HHN. ML:1.8 0.00019 0.42 AML other m 2021-10-12T20:38:04.75
IV.MTGR.HHN. ML:1.7 0.00016450000000000001 1.3 AML other m 2021-10-12T20:38:04.92
IV.MBFT.HHE. ML:1.8 0.00019250000000000002 1.12 AML other m 2021-10-12T20:38:06.15
IV.MTGR.HHE. ML:1.4 0.00007296648 0.32 AML other m 2021-10-12T20:38:09.29
IV.MPG.HHE. ML:1.9 0.0001485 0.46 AML other m 2021-10-12T20:38:09.49
IV.MPG.HHN. ML:2.0 0.0001965 0.3 AML other m 2021-10-12T20:38:09.79
IV.USI.HHE. ML:2.4 0.0004415 0.3 AML other m 2021-10-12T20:38:10.90
IV.USI.HHN. ML:2.8 0.00125 1.36 AML other m 2021-10-12T20:38:12.07
IV.MMGO.HHE. ML:1.7 0.00006925 1.12 AML other m 2021-10-12T20:38:15.68
IV.MMGO.HHN. ML:1.9 0.00011280000000000002 0.32 AML other m 2021-10-12T20:38:15.99
IV.SCIAR.HHE. ML:2.2 0.00013064999999999998 0.32 AML other m 2021-10-12T20:38:22.93
MN.CLTB.HHN. ML:2.8 0.0007325000000000001 0.88 AML other m 2021-10-12T20:38:23.51
IV.SCIAR.HHN. ML:2.2 0.000132 0.34 AML other m 2021-10-12T20:38:23.56
MN.CLTB.HHE. ML:2.8 0.0006659999999999999 0.5 AML other m 2021-10-12T20:38:24.03
IV.ALJA.HHN. ML:1.9 0.0000639 0.62 AML other m 2021-10-12T20:38:26.39
IV.ALJA.HHE. ML:2.2 0.000122 0.66 AML other m 2021-10-12T20:38:26.72
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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