Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.5 on date 01-12-2021 and time 11:10:37 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 2.5 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 01-12-2021 11:10:37 (UTC)
  • 01-12-2021 12:10:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.7200, 14.1950 at 22 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.

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Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
93 Km NE of Bagheria (55387 inhabitants)
99 Km NE of Palermo (674435 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 2.5 2021-12-01
11:10:37		 38.7195 14.1952 22 2022-03-30
13:04:19		 Bollettino Sismico Italiano INGV 98041521
Reviewed
Rev100 		ML 2.5 2021-12-01
11:10:37		 38.7422 14.1947 10 2021-12-01
11:32:52		 Sala Sismica INGV-Roma 98012881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-01 11:10:37 ± 0.17
Latitude 38.7195 ± 0.0126
Longitude 14.1952 ± 0.0092
Depth (km) 22 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 98041521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1117
Semi-minor axis of confidence ellipse (meter) 928
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 184
Circular confidence region, given by single value of horizontal uncertainty (meter) 1120.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 142
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.22393
Epicentral distance of station farthest from the epicenter (degree) 2.04416
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 30
Magnitudes information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 98041521
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-11 14:39:42

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 98012881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-01 11:32:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.TIP.HHZ. 2021-12-01T11:11:11.76 0.6 undecidable manual P 76 226.9062 54 0.43 25
IV.PLAC.HHZ. 2021-12-01T11:11:07.38 0.3 undecidable manual P 98 196.8585 54 -0.2 48
IV.SSY.HHZ. 2021-12-01T11:11:06.19 0.6 undecidable manual P 156 189.5658 54 -0.48 31
IV.GRIS.HNE. 2021-12-01T11:11:05.25 1.0 undecidable manual P 51 181.9845 54 -0.49 16
IV.HVZN.HHZ. 2021-12-01T11:11:05.34 0.6 undecidable manual P 165 176.8896 54 0.23 35
IV.RAFF.HHZ. 2021-12-01T11:11:04.31 0.3 undecidable manual P 175 166.7109 54 0.48 53
IV.HLNI.HHZ. 2021-12-01T11:11:03.03 0.3 undecidable manual P 159 163.2144 54 -0.36 55
IV.USI.HHZ. 2021-12-01T11:11:03.33 0.6 undecidable manual S 269 87.9453 98 -0.29 45
IV.PLLN.EHZ. 2021-12-01T11:11:01.92 0.6 undecidable manual S 183 80.7636 99 0.2 47
IV.MCPD.HHZ. 2021-12-01T11:11:01.63 0.6 undecidable manual S 145 81.1521 99 -0.21 46
IV.JOPP.HHZ. 2021-12-01T11:11:00.34 0.3 undecidable manual P 94 146.9418 54 -1.04 45
IV.CORL.HHZ. 2021-12-01T11:10:59.08 0.6 undecidable manual P 221 119.991 96 1.61 23
IV.RESU.HHZ. 2021-12-01T11:10:57.98 0.3 undecidable manual P 186 119.5914 96 0.57 59
IV.MPNC.HHZ. 2021-12-01T11:10:56.32 0.3 undecidable manual P 122 118.992 96 -1 49
IV.MPG.HHE. 2021-12-01T11:10:54.12 0.6 undecidable manual P 230 95.3379 98 0.42 43
IV.MILZ.HHZ. 2021-12-01T11:10:54.40 0.6 undecidable manual P 119 102.8193 97 -0.44 42
IV.MUCR.HHZ. 2021-12-01T11:10:53.37 0.3 undecidable manual P 142 95.4378 98 -0.34 65
IV.SOLUN.HHE. 2021-12-01T11:10:52.87 0.3 undecidable manual P 220 90.3429 98 -0.06 70
IV.CSLB.HHZ. 2021-12-01T11:10:52.08 0.3 undecidable manual P 188 87.5457 98 -0.43 65
IV.USI.HHZ. 2021-12-01T11:10:51.85 0.3 undecidable manual P 269 87.9453 98 -0.71 60
IV.MCPD.HHZ. 2021-12-01T11:10:51.38 0.3 undecidable manual P 145 81.1521 99 -0.16 70
3D.OEM7.HHZ. 2021-12-01T11:10:51.02 0.3 undecidable manual P 111 72.1722 101 0.85 57
IV.MSFR.HHZ. 2021-12-01T11:10:51.69 0.3 undecidable manual P 155 83.5497 99 -0.2 69
IV.IVPL.HHZ. 2021-12-01T11:10:51.43 0.3 undecidable manual P 119 78.0663 100 0.37 67
IV.IVUG.HHZ. 2021-12-01T11:10:51.31 0.3 undecidable manual P 117 77.4669 100 0.34 68
IV.PLLN.EHZ. 2021-12-01T11:10:51.62 0.1 undecidable manual P 183 80.7636 99 0.15 94
IV.IVCR.HHZ. 2021-12-01T11:10:50.87 0.3 undecidable manual P 117 74.7696 100 0.3 69
3D.OEM8.HHZ. 2021-12-01T11:10:50.21 0.3 undecidable manual P 114 68.4759 101 0.6 64
IV.IVLT.HHN. 2021-12-01T11:10:50.89 0.3 undecidable manual P 119 74.5698 100 0.37 68
3D.OEM4.HHN. 2021-12-01T11:10:50.88 0.3 undecidable manual P 118 73.371 100 0.53 65
IV.IVGP.HHN. 2021-12-01T11:10:50.92 0.3 undecidable manual P 118 75.4689 100 0.26 69
IV.IFIL.HHZ. 2021-12-01T11:10:49.92 0.3 undecidable manual S 117 37.1295 113 -0.55 69
IV.IACL.HHZ. 2021-12-01T11:10:46.69 0.6 undecidable manual S 146 24.8529 125 -0.9 41
IV.IFIL.HHZ. 2021-12-01T11:10:45.24 0.1 undecidable manual P 117 37.1295 113 0.26 99
IV.IACL.HHZ. 2021-12-01T11:10:42.98 0.1 undecidable manual P 146 24.8529 125 -0.33 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.IACL.HHE. ML:3.2 0.006634999999999999 0.88 AML other m 2021-12-01T11:10:48.09
IV.IACL.HHN. ML:3.1 0.005865 1.08 AML other m 2021-12-01T11:10:49.70
IV.IFIL.HHE. ML:3.2 0.0056888749999999995 0.32 AML other m 2021-12-01T11:10:52.40
IV.IFIL.HHN. ML:3.0 0.0033399999999999997 0.24 AML other m 2021-12-01T11:10:53.13
IV.USI.HHN. ML:2.6 0.0004127363 0.896 AML other m 2021-12-01T11:11:03.25
IV.PLLN.EHE. ML:2.6 0.0005304999999999999 0.46 AML other m 2021-12-01T11:11:03.40
IV.MSFR.HHE. ML:2.0 0.00011949999999999999 1.34 AML other m 2021-12-01T11:11:03.90
IV.PLLN.EHN. ML:2.8 0.0008169999999999999 1.64 AML other m 2021-12-01T11:11:03.93
IV.USI.HHE. ML:2.2 0.00016920384999999998 4.0192 AML other m 2021-12-01T11:11:05.13
IV.MCPD.HHN. ML:2.4 0.00029949999999999996 0.46 AML other m 2021-12-01T11:11:05.33
TV.GMB1.HHN. ML:1.7 0.00002605 0.9 AML other m 2021-12-01T11:11:05.54
IV.MSFR.HHN. ML:2.0 0.00011899999999999999 0.9 AML other m 2021-12-01T11:11:05.09
IV.MCPD.HHE. ML:2.2 0.000222 0.76 AML other m 2021-12-01T11:11:05.56
IV.CSLB.HHN. ML:2.1 0.00015999999999999999 0.32 AML other m 2021-12-01T11:11:06.70
IV.IVPL.HHE. ML:2.5 0.00045850000000000003 0.56 AML other m 2021-12-01T11:11:07.84
IV.EPOZ.HHE. ML:2.7 0.00028000000000000003 0.06 AML other m 2021-12-01T11:11:08.26
IV.CSLB.HHE. ML:2.1 0.0001365 1.08 AML other m 2021-12-01T11:11:08.76
IV.MUCR.HHE. ML:2.5 0.00033 0.62 AML other m 2021-12-01T11:11:09.34
IV.MUCR.HHN. ML:2.8 0.000682 0.44 AML other m 2021-12-01T11:11:11.35
IV.IVPL.HHN. ML:2.6 0.0005679999999999999 0.96 AML other m 2021-12-01T11:11:12.81
IV.MPNC.HHE. ML:2.6 0.000264 1.56 AML other m 2021-12-01T11:11:16.92
IV.MPNC.HHN. ML:2.6 0.00029049999999999996 0.76 AML other m 2021-12-01T11:11:16.60
TV.GMB1.HHE. ML:1.7 0.00002295 0.68 AML other m 2021-12-01T11:11:21.06
IV.MILZ.HHE. ML:2.7 0.0005335000000000001 0.94 AML other m 2021-12-01T11:11:21.42
IV.MILZ.HHN. ML:2.6 0.00039049999999999995 0.76 AML other m 2021-12-01T11:11:24.96
IV.EPOZ.HHN. ML:2.6 0.00023449999999999998 0.62 AML other m 2021-12-01T11:11:35.40
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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