Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 20-01-2021 and time 03:05:39 (UTC) in region Mar Ionio Settentrionale (MARE)

A magnitude ML 2.0 earthquake occured in region: Mar Ionio Settentrionale (MARE), on

  • 20-01-2021 03:05:39 (UTC)
  • 20-01-2021 04:05:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.9460, 16.7090 at 37 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
95 Km E 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 2.0 2021-01-20
03:05:39		 37.9457 16.7092 37 2021-07-12
16:54:56		 Bollettino Sismico Italiano INGV 86686881
Reviewed
Rev100 		ML 1.9 2021-01-20
03:05:39		 37.986 16.6852 37 2021-01-20
03:17:21		 Sala Sismica INGV-Roma 86388551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-20 03:05:39 ± 0.24
Latitude 37.9457 ± 0.0081
Longitude 16.7092 ± 0.0148
Depth (km) 37 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86686881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1198
Semi-minor axis of confidence ellipse (meter) 713
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 294
Circular confidence region, given by single value of horizontal uncertainty (meter) 1200.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 218
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 37
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.53150
Epicentral distance of station farthest from the epicenter (degree) 3.13863
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 33
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 86686881
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-29 14:06:00

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 86388551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-20 03:17:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MRVN.HHZ. 2021-01-20T03:06:26.45 0.6 undecidable manual P 353 348.3846 54 -0.52 12
IV.MTGR.HHZ. 2021-01-20T03:06:25.90 0.6 undecidable manual P 270 345.6984 54 -0.74 11
IV.AMUR.HHZ. 2021-01-20T03:06:23.80 0.6 undecidable manual P 358 328.6266 54 -0.72 11
IV.NOCI.HHZ. 2021-01-20T03:06:21.92 0.6 undecidable manual P 5 316.8384 54 -1.14 9
IV.MIGL.HHZ. 2021-01-20T03:06:20.79 1.0 positive manual P 356 295.8816 54 0.35 7
OT.TAR1.HHZ. 2021-01-20T03:06:18.75 0.3 undecidable manual P 10 290.487 54 -1.02 17
IV.RAFF.HHZ. 2021-01-20T03:06:11.71 0.3 undecidable manual P 249 221.3118 54 0.54 38
IV.HMDC.HHZ. 2021-01-20T03:06:08.62 0.3 undecidable manual P 238 201.8424 54 -0.13 47
IV.GALF.HHZ. 2021-01-20T03:06:08.29 0.6 undecidable manual P 263 189.5658 54 1.08 24
IV.HPAC.HHZ. 2021-01-20T03:06:08.84 0.3 undecidable manual P 228 201.4428 54 0.14 47
IV.PIPA.HHE. 2021-01-20T03:06:05.29 0.6 undecidable manual P 3 170.9955 54 0.38 35
IV.HAVL.HHZ. 2021-01-20T03:06:05.40 0.3 undecidable manual P 232 177.489 54 -0.31 52
IV.CELI.HHE. 2021-01-20T03:06:04.22 0.6 undecidable manual P 354 162.5151 54 0.37 37
IV.SSY.HHZ. 2021-01-20T03:06:04.13 0.3 undecidable manual P 239 168.3093 54 -0.44 53
IV.HLNI.HHZ. 2021-01-20T03:06:04.77 0.1 undecidable manual P 248 174.3921 54 -0.56 66
IV.FERC.HNE. 2021-01-20T03:06:03.12 0.6 undecidable manual S 318 75.6687 54 0.05 49
IV.IVPL.HHZ. 2021-01-20T03:06:03.09 0.6 undecidable manual P 288 158.2194 54 -0.22 38
MN.CEL.HHZ. 2021-01-20T03:06:03.60 0.3 undecidable manual S 296 79.2651 54 -0.24 68
IV.HCRL.HHZ. 2021-01-20T03:06:03.80 0.3 undecidable manual P 244 164.613 54 -0.31 55
IV.NOV.HHZ. 2021-01-20T03:06:02.10 0.6 undecidable manual P 274 137.7621 54 1.33 26
IV.HAGA.HHZ. 2021-01-20T03:06:02.30 0.3 undecidable manual P 242 155.0226 54 -0.61 53
IV.LADO.EHE. 2021-01-20T03:06:02.32 0.6 undecidable manual P 9 150.3384 54 -0.01 42
IV.ECTS.HHZ. 2021-01-20T03:06:01.05 0.6 undecidable manual P 268 139.1607 54 0.1 42
MN.TIP.HHE. 2021-01-20T03:06:00.89 0.3 undecidable manual P 2 136.9629 54 0.22 62
IV.AIO.HHE. 2021-01-20T03:06:00.73 0.6 undecidable manual P 272 129.1707 54 1.03 31
IV.SOI.EHZ. 2021-01-20T03:05:59.10 0.3 undecidable manual S 284 58.9965 118 -0.2 73
IV.MPNC.HHZ. 2021-01-20T03:05:59.18 0.3 undecidable manual P 281 120.5904 54 0.55 59
IV.PLAC.HHZ. 2021-01-20T03:05:59.30 0.6 undecidable manual S 337 60.6948 117 -0.4 46
IV.SERS.HHE. 2021-01-20T03:05:58.91 0.3 undecidable manual P 359 120.99 54 0.23 64
IV.MSRU.HHZ. 2021-01-20T03:05:57.59 0.3 undecidable manual P 289 110.6004 54 0.2 65
IV.SELL.HHE. 2021-01-20T03:05:57.40 0.6 undecidable manual P 357 115.2957 54 -0.57 39
IV.JOPP.HHZ. 2021-01-20T03:05:56.13 0.1 undecidable manual P 316 102.6195 54 -0.26 87
IV.GRI.EHE. 2021-01-20T03:05:56.23 0.3 undecidable manual P 346 100.4217 54 0.11 68
IV.FERC.HNE. 2021-01-20T03:05:53.05 0.3 undecidable manual P 318 75.6687 54 0 73
MN.CEL.HHZ. 2021-01-20T03:05:53.71 0.1 negative manual P 296 79.2651 54 0.22 92
IV.SOI.EHZ. 2021-01-20T03:05:51.13 0.1 undecidable manual P 284 58.9965 118 0.26 94
IV.PLAC.HHZ. 2021-01-20T03:05:51.07 0.1 undecidable manual P 337 60.6948 117 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PLAC.HHN. ML:1.8 0.00011499999999999999 0.96 AML other m 2021-01-20T03:05:59.60
IV.SOI.EHN. ML:1.6 0.0000696 1.44 AML other m 2021-01-20T03:06:00.95
IV.SOI.EHE. ML:1.6 0.0000612 0.78 AML other m 2021-01-20T03:06:01.47
IV.PLAC.HHE. ML:1.7 0.0000863 0.3 AML other m 2021-01-20T03:06:01.60
MN.CEL.HHN. ML:1.8 0.00006805 0.42 AML other m 2021-01-20T03:06:04.22
MN.CEL.HHE. ML:1.9 0.00009510000000000001 0.78 AML other m 2021-01-20T03:06:04.55
IV.MSRU.HHN. ML:2.0 0.0000826 0.56 AML other m 2021-01-20T03:06:11.44
IV.MSRU.HHE. ML:2.0 0.00008324999999999999 0.9 AML other m 2021-01-20T03:06:11.27
IV.MPNC.HHN. ML:2.3 0.0001375 1.38 AML other m 2021-01-20T03:06:15.11
IV.MPNC.HHE. ML:2.2 0.0001076 1.7 AML other m 2021-01-20T03:06:15.13
IV.NOCI.HHE. ML:2.6 0.000040999999999999994 1.14 AML other m 2021-01-20T03:06:53.66
IV.NOCI.HHN. ML:2.6 0.000042999999999999995 1.28 AML other m 2021-01-20T03:06:55.97
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