Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 24-12-2020 and time 11:15:03 (UTC) in region Tirreno Meridionale (MARE)

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

  • 24-12-2020 11:15:03 (UTC)
  • 24-12-2020 12:15:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.4010, 15.3710 at 151 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Villafranca Tirrena ME 19 8584 8584
Spadafora ME 20 5021 13605

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NW of Messina (238439 inhabitants)
40 Km NW of Reggio di Calabria (183035 inhabitants)
89 Km N of Acireale (52622 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 2020-12-24
11:15:03		 38.4012 15.3707 151 2021-02-26
14:56:14		 Bollettino Sismico Italiano INGV 86096731
Reviewed
Rev100 		ML 2.0 2020-12-24
11:15:03		 38.3788 15.3505 153 2020-12-24
11:25:40		 Sala Sismica INGV-Roma 85673801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-24 11:15:03 ± 0.33
Latitude 38.4012 ± 0.0279
Longitude 15.3707 ± 0.0275
Depth (km) 151 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86096731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3232
Semi-minor axis of confidence ellipse (meter) 1867
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 150
Circular confidence region, given by single value of horizontal uncertainty (meter) 3230.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.16997
Epicentral distance of station farthest from the epicenter (degree) 1.65745
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 85673801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-24 11:25:40

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 26
Type of magnitude ML
Reference to an origin 86096731
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-08 14:35:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CET2.HHZ. 2020-12-24T11:15:50.00 0.6 undecidable manual S 22 134.865 135 -0.79 36
IV.PLAC.HHZ. 2020-12-24T11:15:45.14 0.6 undecidable manual S 86 92.9403 146 0.08 47
IV.SOI.EHZ. 2020-12-24T11:15:42.88 0.6 undecidable manual S 121 69.7746 154 0.32 47
IV.MPNC.HHZ. 2020-12-24T11:15:40.52 0.6 undecidable manual S 183 28.2495 169 0.89 42
IV.JOPP.HHZ. 2020-12-24T11:15:40.81 0.6 undecidable manual S 63 50.2164 160 -0.09 51
MN.CEL.HHZ. 2020-12-24T11:15:40.95 0.6 undecidable manual S 109 48.1185 161 0.2 50
IV.MILZ.HHZ. 2020-12-24T11:15:39.51 0.6 undecidable manual S 220 18.87 172 0.21 53
IV.SICLA.EHZ. 2020-12-24T11:15:39.36 0.6 undecidable manual S 118 33.9438 166 -0.54 47
IV.MSRU.HHZ. 2020-12-24T11:15:39.49 0.6 undecidable manual S 142 19.3695 172 0.17 53
IV.SALB.HHE. 2020-12-24T11:15:35.94 0.3 undecidable manual P 27 183.9825 126 0.41 49
IV.CELI.HHE. 2020-12-24T11:15:32.57 0.3 undecidable manual P 41 148.3404 133 0.47 58
MN.TIP.HHZ. 2020-12-24T11:15:31.83 0.3 undecidable manual P 54 147.8409 133 -0.22 62
IV.CET2.HHZ. 2020-12-24T11:15:31.62 0.3 undecidable manual P 22 134.865 135 0.73 54
IV.PLAC.HHZ. 2020-12-24T11:15:27.53 0.1 undecidable manual P 86 92.9403 146 -0.05 95
IV.FERC.HNN. 2020-12-24T11:15:26.58 0.3 undecidable manual P 85 66.0894 155 0.64 64
IV.SOI.EHZ. 2020-12-24T11:15:26.11 0.3 undecidable manual P 121 69.7746 154 -0.03 75
IV.AIO.HHZ. 2020-12-24T11:15:25.93 0.3 undecidable manual P 194 49.2174 161 0.79 63
IV.MUCR.HHZ. 2020-12-24T11:15:25.77 0.3 undecidable manual P 228 58.7967 157 0.21 74
IV.SICLA.EHZ. 2020-12-24T11:15:24.24 0.1 positive manual P 118 33.9438 166 -0.36 99
MN.CEL.HHZ. 2020-12-24T11:15:24.79 0.3 undecidable manual P 109 48.1185 161 -0.31 73
IV.IVPL.HHZ. 2020-12-24T11:15:24.70 0.3 undecidable manual P 265 34.0437 166 0.09 79
IV.MPNC.HHZ. 2020-12-24T11:15:24.01 0.3 undecidable manual P 183 28.2495 169 -0.44 74
IV.JOPP.HHZ. 2020-12-24T11:15:24.78 0.3 undecidable manual P 63 50.2164 160 -0.4 72
IV.MSRU.HHZ. 2020-12-24T11:15:23.81 0.1 negative manual P 142 19.3695 172 -0.46 100
IV.MILZ.HHZ. 2020-12-24T11:15:23.82 0.1 undecidable manual P 220 18.87 172 -0.44 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSRU.HHE. ML:2.3 0.00009937514499999999 0.3392 AML other m 2020-12-24T11:15:40.48
IV.MSRU.HHN. ML:2.5 0.0001669811 0.32 AML other m 2020-12-24T11:15:40.51
IV.MILZ.HHN. ML:2.4 0.000120381005 0.4224 AML other m 2020-12-24T11:15:41.24
IV.SICLA.EHN. ML:2.2 0.00007714608 0.3776 AML other m 2020-12-24T11:15:41.46
IV.SICLA.EHE. ML:2.2 0.0000720012 0.3584 AML other m 2020-12-24T11:15:41.54
IV.MILZ.HHE. ML:2.6 0.0001838823 0.4608 AML other m 2020-12-24T11:15:42.31
IV.JOPP.HHN. ML:1.9 0.000034902325 0.1408 AML other m 2020-12-24T11:15:43.23
IV.MPNC.HHE. ML:2.1 0.000063021995 0.3648 AML other m 2020-12-24T11:15:43.40
IV.JOPP.HHE. ML:1.8 0.0000298012 0.2176 AML other m 2020-12-24T11:15:43.39
MN.CEL.HHE. ML:1.9 0.00003989931 0.5184 AML other m 2020-12-24T11:15:43.67
MN.CEL.HNE. ML:2.3 0.0000859777 0.5376 AML other m 2020-12-24T11:15:43.68
MN.CEL.HHN. ML:2.0 0.00004280258 0.3008 AML other m 2020-12-24T11:15:44.38
IV.SOI.EHE. ML:2.0 0.00004184671 0.4224 AML other m 2020-12-24T11:15:44.35
IV.AIO.HHN. ML:2.0 0.000046293544999999996 1.68 AML other m 2020-12-24T11:15:45.10
IV.SOI.EHN. ML:1.9 0.00003543466 0.5632 AML other m 2020-12-24T11:15:45.22
IV.AIO.HHE. ML:1.9 0.000038034705000000004 0.3776 AML other m 2020-12-24T11:15:45.27
IV.PLAC.HNN. ML:2.2 0.000053099965 0.3584 AML other m 2020-12-24T11:15:45.59
IV.PLAC.HHE. ML:2.0 0.000037467544999999996 0.32 AML other m 2020-12-24T11:15:45.59
IV.PLAC.HHN. ML:2.1 0.000046161679999999994 0.3776 AML other m 2020-12-24T11:15:45.69
IV.PLAC.HNE. ML:2.2 0.000060532934999999993 0.4992 AML other m 2020-12-24T11:15:45.74
IV.MPNC.HHN. ML:2.3 0.00009310112000000001 1.3792 AML other m 2020-12-24T11:15:46.26
IV.MUCR.HHE. ML:1.8 0.0000254919 0.3584 AML other m 2020-12-24T11:15:48.59
IV.MUCR.HHN. ML:1.9 0.00003492417 1.4816 AML other m 2020-12-24T11:15:48.77
MN.TIP.HNN. ML:2.3 0.00005583616 0.6784 AML other m 2020-12-24T11:15:52.65
MN.TIP.HHE. ML:1.6 0.000010080319000000001 0.5824 AML other m 2020-12-24T11:15:53.83
MN.TIP.HHN. ML:1.8 0.000012525990000000001 1.5776 AML other m 2020-12-24T11:15:55.01
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