Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 22-12-2020 and time 01:22:38 (UTC) in region Mar Ionio Meridionale (MARE)

A magnitude ML 2.3 earthquake occured in region: Mar Ionio Meridionale (MARE), on

  • 22-12-2020 01:22:38 (UTC)
  • 22-12-2020 02:22:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.2240, 15.7990 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
48 Km E of Siracusa (122291 inhabitants)
70 Km E of Catania (314555 inhabitants)
71 Km SE of Acireale (52622 inhabitants)
100 Km S of Reggio di Calabria (183035 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 2.3 2020-12-22
01:22:38		 37.2237 15.7993 22 2021-02-26
14:56:16		 Bollettino Sismico Italiano INGV 86505561
Reviewed
Rev100 		ML 2.3 2020-12-22
01:22:38		 37.219 15.7937 25 2020-12-22
01:32:48		 Sala Sismica INGV-Roma 85614641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-22 01:22:38 ± 0.17
Latitude 37.2237 ± 0.0081
Longitude 15.7993 ± 0.0102
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 86505561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1037
Semi-minor axis of confidence ellipse (meter) 270
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 137
Circular confidence region, given by single value of horizontal uncertainty (meter) 1040.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 217
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 37
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.65115
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 32
Type of magnitude ML
Reference to an origin 86505561
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-23 19:30:44

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 34
Type of magnitude ML
Reference to an origin 85614641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-22 01:32:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.AMUR.HHZ. 2020-12-22T01:24:17.39 3.0 undecidable manual Sn -2.8 0
IV.LRP.EHZ. 2020-12-22T01:23:47.84 3.0 undecidable manual Pn -1.31 0
GE.MATE.HHZ. 2020-12-22T01:23:36.50 3.0 positive manual Pg 3.8 0
IV.IVPL.HHZ. 2020-12-22T01:23:19.46 0.6 undecidable manual S 331 146.6421 54 -0.44 38
IV.RAFF.HHZ. 2020-12-22T01:23:15.60 0.3 undecidable manual S 270 126.873 95 0.67 56
IV.GALF.HHZ. 2020-12-22T01:23:14.20 0.6 undecidable manual S 297 121.2897 96 0.78 36
IV.MUCR.HHZ. 2020-12-22T01:23:13.40 0.6 undecidable manual S 318 121.989 95 -0.21 42
IV.ACATE.EHZ. 2020-12-22T01:23:12.00 0.6 undecidable manual S 259 116.994 96 -0.29 42
IV.HVZN.HNZ. 2020-12-22T01:23:06.40 0.6 undecidable manual S 267 95.9262 97 -0.29 44
IV.SOI.EHN. 2020-12-22T01:23:06.40 0.6 undecidable manual S 13 96.9252 97 -0.55 41
IV.IFIL.HHZ. 2020-12-22T01:23:06.72 0.3 undecidable manual P 325 183.2832 54 -0.23 51
IV.HMDC.HHZ. 2020-12-22T01:23:05.60 0.3 undecidable manual S 252 94.6386 97 -0.75 58
IV.HPAC.HHZ. 2020-12-22T01:23:04.70 0.6 undecidable manual S 230 88.4448 98 -0.03 47
IV.ESML.HHZ. 2020-12-22T01:23:04.90 0.6 undecidable manual S 299 92.1411 98 -0.79 37
IV.IVGP.HHN. 2020-12-22T01:23:03.29 0.3 undecidable manual P 331 149.4393 54 0.56 55
IV.ENIC.HHZ. 2020-12-22T01:23:03.70 0.6 undecidable manual S 304 82.0512 99 0.65 41
IV.IVPL.HHZ. 2020-12-22T01:23:02.30 0.1 undecidable manual P 331 146.6421 54 -0.09 83
IV.CAGR.HHE. 2020-12-22T01:23:00.28 0.6 undecidable manual P 292 122.6883 95 1.41 26
IT.LNT.HGZ. 2020-12-22T01:23:00.20 0.3 undecidable manual S 276 70.7736 100 0.14 72
IV.GALF.HHZ. 2020-12-22T01:22:59.61 0.6 undecidable manual P 297 121.2897 96 0.96 33
IV.RAFF.HHZ. 2020-12-22T01:22:59.42 0.1 undecidable manual P 270 126.873 95 -0.1 86
IV.HCRL.HHZ. 2020-12-22T01:22:59.20 0.3 undecidable manual S 276 67.9764 101 -0.14 72
IV.MUCR.HHZ. 2020-12-22T01:22:58.52 0.1 undecidable manual P 318 121.989 95 -0.23 84
IV.SSY.HHZ. 2020-12-22T01:22:58.40 0.3 undecidable manual S 264 64.5909 101 -0.03 74
IV.ACATE.EHZ. 2020-12-22T01:22:58.02 0.1 undecidable manual P 259 116.994 96 0.03 89
IV.EPZF.HHZ. 2020-12-22T01:22:57.03 0.3 undecidable manual P 309 106.3158 96 0.67 58
IV.MSRU.HHE. 2020-12-22T01:22:57.90 0.1 undecidable manual P 348 118.1928 96 -0.28 84
MN.CEL.HNZ. 2020-12-22T01:22:57.54 0.6 undecidable manual P 4 115.2957 96 -0.19 43
IV.HAGA.HHZ. 2020-12-22T01:22:56.30 0.3 undecidable manual S 277 57.2982 103 -0.24 72
IV.SOI.EHN. 2020-12-22T01:22:55.03 0.6 undecidable manual P 13 96.9252 97 0.12 46
IV.HMDC.HHZ. 2020-12-22T01:22:54.18 0.1 undecidable manual P 252 94.6386 97 -0.38 87
IV.AIO.HHZ. 2020-12-22T01:22:54.70 0.1 undecidable manual P 329 96.7254 97 -0.19 90
IV.HVZN.HNZ. 2020-12-22T01:22:54.75 0.3 undecidable manual P 267 95.9262 97 -0.01 70
IV.ESML.HHZ. 2020-12-22T01:22:54.24 0.1 undecidable manual P 299 92.1411 98 0.06 93
IV.ENIC.HHZ. 2020-12-22T01:22:53.59 0.3 undecidable manual P 304 82.0512 99 0.93 54
IV.HPAC.HHZ. 2020-12-22T01:22:53.73 0.1 undecidable manual P 230 88.4448 98 0.1 92
IV.HCRL.HHZ. 2020-12-22T01:22:50.48 0.1 undecidable manual P 276 67.9764 101 -0.04 98
IT.LNT.HGZ. 2020-12-22T01:22:50.93 0.1 undecidable manual P 276 70.7736 100 0 98
IV.SSY.HHZ. 2020-12-22T01:22:49.96 0.1 undecidable manual P 264 64.5909 101 -0.03 99
IV.HAGA.HHZ. 2020-12-22T01:22:48.86 0.1 undecidable manual P 277 57.2982 103 -0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HAGA.HHE. ML:2.0 0.00022520364999999997 0.14 AML other m 2020-12-22T01:22:56.80
IV.SSY.HHN. ML:3.0 0.0016833915 0.22 AML other m 2020-12-22T01:22:58.93
IV.HAGA.HHN. ML:2.2 0.00032375005 0.22 AML other m 2020-12-22T01:22:59.80
IV.SSY.HHE. ML:2.5 0.0006400930999999999 0.14 AML other m 2020-12-22T01:23:01.66
IV.HCRL.HHE. ML:2.4 0.00045660665 0.16 AML other m 2020-12-22T01:23:02.34
IV.HCRL.HHN. ML:2.6 0.0006943988999999999 0.26 AML other m 2020-12-22T01:23:02.65
IV.HPAC.HHE. ML:2.3 0.00020832504999999997 0.46 AML other m 2020-12-22T01:23:05.13
IV.ESML.HHN. ML:2.2 0.00018320539999999998 0.24 AML other m 2020-12-22T01:23:06.81
IV.HMDC.HHE. ML:2.2 0.00015890185000000002 0.14 AML other m 2020-12-22T01:23:06.91
IV.ESML.HHE. ML:2.3 0.00019809865 0.26 AML other m 2020-12-22T01:23:06.93
IV.HMDC.HNE. ML:2.1 0.00014472589 0.6 AML other m 2020-12-22T01:23:15.67
IV.HMDC.HHN. ML:2.2 0.00015381335000000002 0.24 AML other m 2020-12-22T01:23:11.41
IV.HPAC.HHN. ML:2.0 0.00011070305 0.5 AML other m 2020-12-22T01:23:11.35
IV.HMDC.HNN. ML:2.2 0.00018151453499999997 0.4496 AML other m 2020-12-22T01:23:11.66
IV.ACATE.EHN. ML:2.2 0.00012934885000000001 0.24 AML other m 2020-12-22T01:23:14.10
IV.MUCR.HHE. ML:2.4 0.00017385715000000002 0.32 AML other m 2020-12-22T01:23:14.33
IV.MUCR.HHN. ML:2.2 0.00011459130000000001 0.2 AML other m 2020-12-22T01:23:14.75
IV.RAFF.HHN. ML:2.4 0.000152 0.28 AML other m 2020-12-22T01:23:17.56
IV.ACATE.HNN. ML:2.6 0.00029829 0.38 AML other m 2020-12-22T01:23:17.51
IV.ACATE.EHE. ML:2.3 0.00014695629999999997 0.26 AML other m 2020-12-22T01:23:17.82
IV.ACATE.HNE. ML:2.4 0.00018992625 0.2896 AML other m 2020-12-22T01:23:17.83
IV.EPZF.HHE. ML:2.2 0.00015727085 1.06 AML other m 2020-12-22T01:23:18.00
IV.GALF.HHN. ML:2.3 0.00013700000000000002 0.54 AML other m 2020-12-22T01:23:20.28
IV.RAFF.HHE. ML:2.2 0.0001035 0.26 AML other m 2020-12-22T01:23:20.36
IV.GALF.HHE. ML:2.3 0.00014850000000000003 0.48 AML other m 2020-12-22T01:23:21.29
IV.EPZF.HHN. ML:2.5 0.0003005504 0.74 AML other m 2020-12-22T01:23:21.47
IV.IVPL.HHE. ML:2.4 0.00014515804999999998 1.32 AML other m 2020-12-22T01:23:23.80
IV.IVPL.HHN. ML:2.3 0.00011696522500000001 0.36 AML other m 2020-12-22T01:23:23.49
IV.IFIL.HHE. ML:2.6 0.0001525105 0.86 AML other m 2020-12-22T01:23:35.15
IV.IFIL.HHN. ML:2.2 0.000060447895 0.44 AML other m 2020-12-22T01:23:38.50
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