Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.5 on date 26-12-2021 and time 02:39:58 (Italy) in region Tirreno Meridionale (MARE)

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

  • 26-12-2021 01:39:58 (UTC)
  • 26-12-2021 02:39:58 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.7110, 14.1830 at 23 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
91 Km NE of Bagheria (55387 inhabitants)
97 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 2021-12-26
01:39:58		 38.7108 14.1828 23 2022-03-30
13:04:41		 Bollettino Sismico Italiano INGV 101979341
Reviewed
Rev100 		ML 2.5 2021-12-26
01:39:58		 38.7278 14.1977 19 2021-12-26
01:56:20		 Sala Sismica INGV-Roma 98987721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-26 01:39:58 ± 0.14
Latitude 38.7108 ± 0.0099
Longitude 14.1828 ± 0.0081
Depth (km) 23 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 101979341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 828
Semi-minor axis of confidence ellipse (meter) 714
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 346
Circular confidence region, given by single value of horizontal uncertainty (meter) 830.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 149
Number of associated phases, regardless of their use for origin computation 51
Number of defining phases 51
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0.22303
Epicentral distance of station farthest from the epicenter (degree) 1.78156
Number of stations at which the event was observed 39
Number of stations from which data was used for origin computation 39
Magnitudes information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 101979341
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-23 11:03:08

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations 37
Type of magnitude ML
Reference to an origin 98987721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-26 01:56:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSY.HHZ. 2021-12-26T01:40:28.06 0.3 undecidable manual P 155 189.0663 54 0.01 52
IV.PLAC.HHZ. 2021-12-26T01:40:28.81 0.1 undecidable manual P 98 197.7576 54 -0.31 63
IV.MILZ.HHZ. 2021-12-26T01:40:28.20 0.6 undecidable manual S 118 103.3188 97 -0.97 35
IV.CAR1.HHN. 2021-12-26T01:40:26.99 0.3 undecidable manual P 70 184.9704 54 -0.55 48
IV.CET2.HHZ. 2021-12-26T01:40:26.06 0.6 undecidable manual P 59 177.489 54 -0.54 33
IV.MUCR.HHZ. 2021-12-26T01:40:26.50 0.3 undecidable manual S 141 95.4378 98 -0.59 63
IV.RAFF.HHZ. 2021-12-26T01:40:26.07 0.3 undecidable manual P 175 165.8118 54 0.91 45
IV.SOLUN.HHE. 2021-12-26T01:40:25.40 0.6 undecidable manual S 220 88.9443 99 0.02 48
IV.USI.HHE. 2021-12-26T01:40:25.00 0.3 undecidable manual S 270 86.8464 99 0.16 71
IV.GIZZ.HHN. 2021-12-26T01:40:25.84 0.6 undecidable manual P 80 177.489 54 -0.76 31
IV.HLNI.HHZ. 2021-12-26T01:40:24.76 0.3 undecidable manual P 158 162.7149 54 0 60
IV.CSLB.HHZ. 2021-12-26T01:40:24.10 0.3 undecidable manual S 187 86.4468 99 -0.63 63
3D.OEM9.HNE. 2021-12-26T01:40:23.38 0.6 undecidable manual S 117 78.7656 100 0.69 41
IV.MTTG.HHZ. 2021-12-26T01:40:23.06 0.6 undecidable manual P 120 153.5352 54 -0.57 37
IV.PLLN.EHZ. 2021-12-26T01:40:23.10 0.3 undecidable manual S 182 79.7646 100 0.14 72
IV.MCPD.HHZ. 2021-12-26T01:40:23.30 0.6 undecidable manual S 144 81.0522 100 0 49
IV.ERC.EHN. 2021-12-26T01:40:23.59 0.6 undecidable manual P 242 157.5201 54 -0.54 37
IV.EPOZ.HHZ. 2021-12-26T01:40:23.91 0.6 undecidable manual P 142 144.8439 54 1.37 26
IV.GIB.HHZ. 2021-12-26T01:40:23.10 0.3 undecidable manual S 190 81.0522 100 -0.22 71
IV.JOPP.HHZ. 2021-12-26T01:40:21.94 0.3 undecidable manual P 94 147.9408 54 -0.99 48
IV.IVLT.HHN. 2021-12-26T01:40:21.90 0.6 undecidable manual S 117 75.0693 101 0.18 48
IV.EPZF.HHZ. 2021-12-26T01:40:19.11 0.3 undecidable manual P 149 114.5964 97 0.98 51
IV.RESU.HHZ. 2021-12-26T01:40:19.52 0.3 undecidable manual P 185 118.4925 96 0.79 55
3D.OEM8.HHN. 2021-12-26T01:40:19.77 0.6 undecidable manual S 113 69.0753 102 -0.39 46
IV.GALF.HHZ. 2021-12-26T01:40:18.93 0.3 undecidable manual P 163 115.8951 96 0.6 59
IV.MPNC.HHZ. 2021-12-26T01:40:18.05 0.3 undecidable manual P 121 119.3916 96 -0.82 54
IV.AIO.HHZ. 2021-12-26T01:40:18.94 0.3 undecidable manual P 132 122.7882 96 -0.45 62
IV.MSRU.HHZ. 2021-12-26T01:40:18.93 0.3 undecidable manual P 113 125.2746 96 -0.84 53
IV.MARIO.HHN. 2021-12-26T01:40:16.90 0.3 undecidable manual P 218 106.3158 97 0.04 70
IV.MILZ.HHZ. 2021-12-26T01:40:15.52 0.3 undecidable manual P 118 103.3188 97 -0.88 55
IV.MUCR.HHZ. 2021-12-26T01:40:15.08 0.3 undecidable manual P 141 95.4378 98 -0.12 70
IV.IST3.HHZ. 2021-12-26T01:40:14.34 1.0 undecidable manual P 83 91.1421 98 -0.21 23
IV.SOLUN.HHE. 2021-12-26T01:40:14.09 0.3 undecidable manual P 220 88.9443 99 -0.12 71
IV.USI.HHE. 2021-12-26T01:40:13.62 0.3 undecidable manual P 270 86.8464 99 -0.28 69
IV.MSFR.HHZ. 2021-12-26T01:40:13.14 0.3 undecidable manual P 155 83.0502 99 -0.18 71
3D.OEM9.HNE. 2021-12-26T01:40:13.19 0.3 undecidable manual P 117 78.7656 100 0.53 66
IV.CSLB.HHZ. 2021-12-26T01:40:13.57 0.3 undecidable manual P 187 86.4468 99 -0.26 69
IV.IVLT.HHN. 2021-12-26T01:40:12.61 0.1 undecidable manual P 117 75.0693 101 0.51 89
IV.GIB.HHZ. 2021-12-26T01:40:12.92 0.3 undecidable manual P 190 81.0522 100 -0.1 73
3D.OEM7.HHZ. 2021-12-26T01:40:12.44 0.3 undecidable manual P 110 72.8715 101 0.67 63
3D.OEM5.HHZ. 2021-12-26T01:40:12.82 0.6 undecidable manual P 115 75.0693 101 0.71 41
3D.OEM4.HHN. 2021-12-26T01:40:12.59 0.1 undecidable manual P 117 73.8705 101 0.67 84
IV.PLLN.EHZ. 2021-12-26T01:40:12.91 0.3 undecidable manual P 182 79.7646 100 0.1 73
IV.ILOS.HHZ. 2021-12-26T01:40:12.79 0.3 undecidable manual P 114 72.5718 101 1.06 53
IV.IVUG.HHZ. 2021-12-26T01:40:12.97 0.3 undecidable manual P 116 77.9664 100 0.43 68
IV.MCPD.HHZ. 2021-12-26T01:40:12.90 0.3 undecidable manual P 144 81.0522 100 -0.11 72
IV.IVGP.HHZ. 2021-12-26T01:40:12.55 0.3 undecidable manual P 117 75.9684 100 0.31 70
IV.IVCR.HHZ. 2021-12-26T01:40:12.59 0.3 undecidable manual P 116 75.369 101 0.45 68
3D.OEM8.HHN. 2021-12-26T01:40:11.69 0.1 undecidable manual P 113 69.0753 102 0.49 91
IV.IACL.HHZ. 2021-12-26T01:40:08.20 0.3 undecidable manual S 143 24.753 126 -0.92 61
IV.IACL.HHZ. 2021-12-26T01:40:04.41 0.1 undecidable manual P 143 24.753 126 -0.41 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.IACL.HHE. ML:3.1 0.005755 0.9 AML other m 2021-12-26T01:40:10.37
IV.IACL.HHN. ML:3.0 0.00538 0.76 AML other m 2021-12-26T01:40:10.54
IV.IVGP.HHE. ML:2.4 0.00036350000000000005 0.28 AML other m 2021-12-26T01:40:25.89
IV.PLLN.EHE. ML:2.6 0.000528 0.78 AML other m 2021-12-26T01:40:26.75
IV.PLLN.EHN. ML:2.8 0.0007605 0.82 AML other m 2021-12-26T01:40:26.49
IV.IVGP.HHN. ML:2.4 0.0003965 1.24 AML other m 2021-12-26T01:40:26.84
IV.MCPD.HHN. ML:2.3 0.00024249999999999999 0.56 AML other m 2021-12-26T01:40:26.64
IV.ILOS.HHN. ML:3.0 0.00165 0.54 AML other m 2021-12-26T01:40:27.21
IV.MCPD.HHE. ML:2.1 0.00015900000000000002 0.34 AML other m 2021-12-26T01:40:28.03
IV.MSFR.HHE. ML:1.9 0.00009850000000000001 0.52 AML other m 2021-12-26T01:40:28.37
IV.MSFR.HHN. ML:2.0 0.000121 1.32 AML other m 2021-12-26T01:40:28.70
IV.GIB.HHN. ML:2.7 0.0006435 0.38 AML other m 2021-12-26T01:40:28.74
IV.CSLB.HHN. ML:2.1 0.0001495 0.42 AML other m 2021-12-26T01:40:28.59
IV.IVUG.HHE. ML:2.2 0.000243 1.08 AML other m 2021-12-26T01:40:29.75
IV.CSLB.HHE. ML:2.2 0.0001995 0.54 AML other m 2021-12-26T01:40:29.60
IV.ILOS.HHE. ML:2.9 0.0011400000000000002 1.1 AML other m 2021-12-26T01:40:29.41
IV.IVUG.HHN. ML:2.1 0.00017099999999999998 0.9 AML other m 2021-12-26T01:40:30.08
IV.MUCR.HHN. ML:2.7 0.0005780000000000001 1.22 AML other m 2021-12-26T01:40:30.05
IV.MUCR.HHE. ML:2.6 0.0004335 1.42 AML other m 2021-12-26T01:40:30.98
IV.MILZ.HHN. ML:2.6 0.000407 1.58 AML other m 2021-12-26T01:40:32.84
IV.MILZ.HHE. ML:2.7 0.00048150000000000005 1.56 AML other m 2021-12-26T01:40:32.84
IV.GIB.HHE. ML:2.6 0.000517 1.1 AML other m 2021-12-26T01:40:32.15
IV.MSRU.HHE. ML:2.3 0.00014500000000000003 1.22 AML other m 2021-12-26T01:40:34.61
IV.MSRU.HHN. ML:2.2 0.000108 1.1 AML other m 2021-12-26T01:40:35.24
IV.AIO.HHN. ML:2.4 0.000189 0.44 AML other m 2021-12-26T01:40:38.02
IV.MPNC.HHE. ML:2.7 0.000368 0.46 AML other m 2021-12-26T01:40:38.57
IV.MPNC.HHN. ML:2.7 0.00034050000000000004 0.62 AML other m 2021-12-26T01:40:38.29
IV.AIO.HHE. ML:2.2 0.0001275 1.28 AML other m 2021-12-26T01:40:39.22
IV.EPZF.HHE. ML:2.5 0.0002695 0.84 AML other m 2021-12-26T01:40:39.22
IV.RESU.HHE. ML:2.4 0.00019700000000000002 0.52 AML other m 2021-12-26T01:40:40.28
IV.EPZF.HHN. ML:2.8 0.0004465 0.6 AML other m 2021-12-26T01:40:40.33
IV.RESU.HHN. ML:2.4 0.000199 0.74 AML other m 2021-12-26T01:40:40.36
IV.GALF.HHN. ML:2.6 0.000333 0.62 AML other m 2021-12-26T01:40:45.62
IV.GALF.HHE. ML:2.5 0.0002185 0.54 AML other m 2021-12-26T01:40:48.20
IV.CMPR.HNE. ML:3.0 0.00027800000000000004 0.66 AML other m 2021-12-26T01:41:05.63
IV.CMPR.HNN. ML:3.0 0.000268 1.18 AML other m 2021-12-26T01:41:05.63
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