Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 26-12-2021 and time 07:37:23 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 2.1 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 26-12-2021 07:37:23 (UTC)
  • 26-12-2021 08:37:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.7260, 15.6180 at 98 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
59 Km N of Messina (238439 inhabitants)
67 Km W of Lamezia Terme (70714 inhabitants)
69 Km N of Reggio di Calabria (183035 inhabitants)
84 Km SW of Cosenza (67546 inhabitants)
87 Km W of Catanzaro (90612 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 2.1 2021-12-26
07:37:23		 38.7258 15.6183 98 2022-03-30
13:04:41		 Bollettino Sismico Italiano INGV 102005071
Reviewed
Rev100 		ML 2.1 2021-12-26
07:37:23		 38.6437 15.6733 102 2021-12-26
07:46:14		 Sala Sismica INGV-Roma 98996211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-26 07:37:23 ± 0.2
Latitude 38.7258 ± 0.0099
Longitude 15.6183 ± 0.0150
Depth (km) 98 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 102005071

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1170
Semi-minor axis of confidence ellipse (meter) 1057
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 129
Circular confidence region, given by single value of horizontal uncertainty (meter) 1170.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 134
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 40
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.49647
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 98996211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-26 07:46:14

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 102005071
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-23 11:22:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GAVE.EHZ. 2021-12-26T07:39:22.54 3.0 undecidable manual Sn -6.22 0
IV.FOSV.EHZ. 2021-12-26T07:38:58.85 3.0 undecidable manual P 2.049 0
IV.TERO.HHZ. 2021-12-26T07:38:46.07 3.0 undecidable manual P 1.961 0
AC.VLO.HHZ. 2021-12-26T07:38:19.70 3.0 positive manual P 3.81 0
IV.HLNI.HHZ. 2021-12-26T07:38:08.08 0.6 undecidable manual S 203 166.1115 115 -1.36 22
MN.TIP.HHN. 2021-12-26T07:37:59.36 0.6 undecidable manual S 63 110.5005 127 0.27 41
IV.GRIS.HNE. 2021-12-26T07:37:59.74 0.3 undecidable manual S 10 114.2967 126 -0.02 63
IV.MUCR.HHE. 2021-12-26T07:37:57.97 1.0 undecidable manual S 221 99.6225 130 0.72 18
IV.SERS.HNN. 2021-12-26T07:37:57.41 0.6 undecidable manual S 69 98.6235 130 0.33 41
IV.AIO.HHZ. 2021-12-26T07:37:56.46 0.6 undecidable manual S 202 90.1431 133 0.74 36
IV.CET2.HHZ. 2021-12-26T07:37:55.84 0.6 undecidable manual S 18 93.6396 132 -0.44 40
IV.CAR1.HHZ. 2021-12-26T07:37:53.16 0.6 undecidable manual S 41 77.6667 138 -0.67 38
IV.PLAC.HHZ. 2021-12-26T07:37:53.80 0.6 undecidable manual S 113 77.4669 138 0.01 45
IV.MPNC.HHZ. 2021-12-26T07:37:52.24 0.6 undecidable manual S 200 68.2761 141 -0.27 44
IV.IVUG.HHZ. 2021-12-26T07:37:52.30 0.6 undecidable manual S 236 65.9895 142 0.1 45
IV.MILZ.HHZ. 2021-12-26T07:37:51.32 0.6 undecidable manual S 214 60.5949 145 -0.19 46
IV.FERC.HHZ.00 2021-12-26T07:37:51.00 0.6 undecidable manual S 124 53.6019 148 0.32 44
IV.GIZZ.HHZ. 2021-12-26T07:37:50.75 0.6 undecidable manual S 61 58.1973 146 -0.47 43
IV.MSRU.HHZ. 2021-12-26T07:37:50.32 0.6 undecidable manual S 191 52.1034 149 -0.2 46
IV.HLNI.HHZ. 2021-12-26T07:37:48.73 0.3 undecidable manual P 203 166.1115 115 -1.27 35
IV.JOPP.HHZ. 2021-12-26T07:37:48.20 0.3 undecidable manual S 120 26.6511 163 -0.09 74
MN.TIP.HHN. 2021-12-26T07:37:44.06 0.3 undecidable manual P 63 110.5005 127 0.04 64
IV.GRIS.HNE. 2021-12-26T07:37:44.50 0.3 undecidable manual P 10 114.2967 126 0.09 63
IV.CELI.HHZ. 2021-12-26T07:37:43.96 0.3 undecidable manual P 45 107.3148 127 0.25 62
IV.MUCR.HHE. 2021-12-26T07:37:43.70 0.6 undecidable manual P 221 99.6225 130 0.74 36
IV.SERS.HNN. 2021-12-26T07:37:43.04 0.3 undecidable manual P 69 98.6235 130 0.17 64
IV.AIO.HHZ. 2021-12-26T07:37:42.46 0.1 undecidable manual P 202 90.1431 133 0.38 82
IV.SELL.HHZ. 2021-12-26T07:37:42.55 0.3 undecidable manual P 72 91.7415 132 0.33 62
IV.CET2.HHZ. 2021-12-26T07:37:42.38 0.3 undecidable manual P 18 93.6396 132 -0.02 66
IV.MTTG.HHZ. 2021-12-26T07:37:41.42 0.3 undecidable manual P 175 80.4639 136 0.2 65
IY.OPPI.HHE. 2021-12-26T07:37:40.39 0.3 undecidable manual P 146 61.1943 145 0.7 59
3D.OEM9.HNE. 2021-12-26T07:37:40.51 0.3 undecidable manual P 236 66.0894 142 0.46 64
IV.PLAC.HHZ. 2021-12-26T07:37:40.81 0.1 undecidable manual P 113 77.4669 138 -0.15 88
IV.CAR1.HHZ. 2021-12-26T07:37:40.76 0.1 undecidable manual P 41 77.6667 138 -0.22 87
IV.SOI.EHZ. 2021-12-26T07:37:40.98 0.3 undecidable manual P 152 81.7515 136 -0.34 63
IV.GRI.EHN. 2021-12-26T07:37:40.33 0.3 undecidable manual P 81 70.1742 141 -0.04 69
IV.IVUG.HHZ. 2021-12-26T07:37:40.49 0.3 undecidable manual P 236 65.9895 142 0.45 64
IV.IVPL.HHZ. 2021-12-26T07:37:40.56 0.3 undecidable manual P 235 67.5768 142 0.39 64
IV.MILZ.HHZ. 2021-12-26T07:37:39.62 0.3 undecidable manual P 214 60.5949 145 -0.03 70
IV.GIZZ.HHZ. 2021-12-26T07:37:39.23 0.3 undecidable manual P 61 58.1973 146 -0.25 67
IV.MPNC.HHZ. 2021-12-26T07:37:39.82 0.1 undecidable manual P 200 68.2761 141 -0.4 85
IV.FERC.HHZ.00 2021-12-26T07:37:38.99 0.1 undecidable manual P 124 53.6019 148 -0.18 92
IV.MSRU.HHZ. 2021-12-26T07:37:38.72 0.1 undecidable manual P 191 52.1034 149 -0.35 89
IV.JOPP.HHZ. 2021-12-26T07:37:37.79 0.1 negative manual P 120 26.6511 163 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.JOPP.HHN. ML:2.0 0.00010595 0.12 AML other m 2021-12-26T07:37:49.83
IV.JOPP.HHE. ML:2.0 0.0000923 0.94 AML other m 2021-12-26T07:37:50.26
IV.MSRU.HHN. ML:2.2 0.0001285 0.56 AML other m 2021-12-26T07:37:50.78
IV.GIZZ.HHN. ML:2.2 0.000127 0.36 AML other m 2021-12-26T07:37:51.03
IV.GIZZ.HHE. ML:2.2 0.000133 1.1 AML other m 2021-12-26T07:37:51.55
IV.MSRU.HHE. ML:2.2 0.0001245 0.82 AML other m 2021-12-26T07:37:51.61
IV.MILZ.HHE. ML:2.8 0.000546 0.64 AML other m 2021-12-26T07:37:52.37
IV.MILZ.HHN. ML:2.8 0.0004685 0.56 AML other m 2021-12-26T07:37:52.34
IV.MPNC.HHN. ML:2.3 0.000136 0.48 AML other m 2021-12-26T07:37:52.48
IV.MPNC.HHE. ML:2.3 0.000135 0.54 AML other m 2021-12-26T07:37:53.82
IV.CAR1.HHN. ML:2.0 0.00006709999999999999 0.6 AML other m 2021-12-26T07:37:55.58
IV.AIO.HHE. ML:1.9 0.00004635 0.5 AML other m 2021-12-26T07:37:56.96
IV.CAR1.HHE. ML:2.0 0.00007435 0.46 AML other m 2021-12-26T07:37:57.35
IV.AIO.HHN. ML:1.8 0.00004085 1.54 AML other m 2021-12-26T07:38:00.86
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