Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 08-02-2023 and time 18:23:55 (UTC) in region Costa Calabra sud orientale (Reggio di Calabria)

A magnitude ML 1.6 earthquake occured in region: Costa Calabra sud orientale (Reggio di Calabria), on

  • 08-02-2023 18:23:55 (UTC)
  • 08-02-2023 19:23:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7960, 15.6520 at 15 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
Roghudi RC 18 1104 1104
Melito di Porto Salvo RC 18 11355 12459

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km S of Reggio di Calabria (183035 inhabitants)
45 Km S of Messina (238439 inhabitants)
47 Km E of Acireale (52622 inhabitants)
59 Km NE of Catania (314555 inhabitants)
88 Km NE of Siracusa (122291 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 1.6 2023-02-08
18:23:55		 37.7965 15.6518 15 2024-03-01
17:18:15		 Bollettino Sismico Italiano INGV 120551321
Reviewed
Rev100 		ML 1.6 2023-02-08
18:23:54		 37.7803 15.6492 9 2023-02-08
18:30:56		 Sala Sismica INGV-Roma 114266441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-08 18:23:55 ± 0.14
Latitude 37.7965 ± 0.0063
Longitude 15.6518 ± 0.0125
Depth (km) 15 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 120551321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1082
Semi-minor axis of confidence ellipse (meter) 422
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 299
Circular confidence region, given by single value of horizontal uncertainty (meter) 1080.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 146
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.15468
Epicentral distance of station farthest from the epicenter (degree) 0.93619
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 120551321
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-08-28 13:34:33

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 114266441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-08 18:30:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAVL.HHN. 2023-02-08T18:24:25.24 0.6 undecidable manual S 207 103.9182 93 -0.04 44
IV.SSY.HNN. 2023-02-08T18:24:21.46 0.6 undecidable manual S 216 87.246 93 0.62 39
IV.HCRL.HHN. 2023-02-08T18:24:19.00 0.6 undecidable manual S 224 78.7656 94 0.41 42
IV.HAGA.HHE. 2023-02-08T18:24:17.17 0.6 undecidable manual S 218 71.5728 94 0.5 42
IV.SOI.EHZ. 2023-02-08T18:24:11.16 0.6 undecidable manual S 49 46.7199 97 1.1 34
IV.MSRU.HHE. 2023-02-08T18:24:11.84 0.6 undecidable manual S 346 53.3022 96 0.03 48
IV.HAVL.HHN. 2023-02-08T18:24:11.39 0.3 undecidable manual P 207 103.9182 93 -1.12 46
IV.MPNC.HHE. 2023-02-08T18:24:09.93 0.6 undecidable manual S 326 46.8198 97 -0.15 47
IV.SSY.HNN. 2023-02-08T18:24:09.29 0.1 undecidable manual P 216 87.246 93 -0.65 78
IV.MRCB.HHZ. 2023-02-08T18:24:08.15 0.6 undecidable manual S 6 40.8258 98 -0.34 46
IV.HCRL.HHN. 2023-02-08T18:24:08.24 0.1 undecidable manual P 224 78.7656 94 -0.4 86
IY.OPPI.HHE. 2023-02-08T18:24:07.11 0.3 undecidable manual P 31 60.8946 95 1.22 47
IT.ARMO.HNZ. 2023-02-08T18:24:06.44 0.6 undecidable manual S 10 31.4463 102 0.4 47
IV.HAGA.HHE. 2023-02-08T18:24:06.95 0.3 undecidable manual P 218 71.5728 94 -0.59 62
IV.EMFO.HHE. 2023-02-08T18:24:05.49 0.3 undecidable manual P 262 49.7169 96 1.32 46
IV.EPIT.HHN. 2023-02-08T18:24:05.63 0.3 undecidable manual P 272 52.2033 96 1.08 52
IY.CNDF.HHZ.00 2023-02-08T18:24:05.89 0.6 undecidable manual S 38 29.1486 104 0.45 46
IV.ECTS.HHE. 2023-02-08T18:24:04.25 0.3 undecidable manual P 282 47.4192 97 0.42 68
IV.MSRU.HHE. 2023-02-08T18:24:04.75 0.3 undecidable manual P 346 53.3022 96 0.01 73
IV.SICLA.EHZ. 2023-02-08T18:24:04.42 0.3 undecidable manual P 6 51.3153 96 0 73
IV.MTTG.HHZ. 2023-02-08T18:24:03.75 0.6 undecidable manual S 10 23.2545 110 -0.19 49
IV.EPMN.HHE. 2023-02-08T18:24:03.28 0.3 undecidable manual P 274 41.625 98 0.33 70
IV.MPNC.HHE. 2023-02-08T18:24:03.30 0.3 undecidable manual P 326 46.8198 97 -0.44 67
IT.LAZR.HNZ. 2023-02-08T18:24:03.36 0.6 undecidable manual S 4 20.1687 114 0.2 50
IV.SOI.EHZ. 2023-02-08T18:24:03.75 0.1 undecidable manual P 49 46.7199 97 0.03 98
TV.GMB1.HNZ. 2023-02-08T18:24:03.39 0.3 undecidable manual P 19 44.1225 98 0.06 73
IV.MRCB.HHZ. 2023-02-08T18:24:02.43 0.1 undecidable manual P 6 40.8258 98 -0.39 92
1J.FX13.HHZ. 2023-02-08T18:24:02.36 0.3 undecidable manual S 16 17.1717 120 -0.1 75
IV.AIO.HHE. 2023-02-08T18:24:02.72 0.3 undecidable manual P 298 41.4252 98 -0.2 71
IV.MPAZ.HHZ. 2023-02-08T18:24:02.29 0.1 undecidable manual P 61 35.6421 100 0.26 95
IT.ARMO.HNZ. 2023-02-08T18:24:01.36 0.3 undecidable manual P 10 31.4463 102 -0.04 75
IY.CNDF.HHZ.00 2023-02-08T18:24:00.97 0.1 undecidable manual P 38 29.1486 104 -0.08 100
1J.FX12.HHZ. 2023-02-08T18:24:00.90 0.3 undecidable manual P 10 33.0447 102 -0.74 62
IT.LAZR.HNZ. 2023-02-08T18:23:59.39 0.3 undecidable manual P 4 20.1687 114 -0.35 72
IV.MTTG.HHZ. 2023-02-08T18:23:59.97 0.1 undecidable manual P 10 23.2545 110 -0.22 98
1J.FX13.HHZ. 2023-02-08T18:23:59.12 0.1 undecidable manual P 16 17.1717 120 -0.21 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTTG.HHE. ML:1.7 0.0002715 0.46 AML other m 2023-02-08T18:24:04.66
IV.MTTG.HHN. ML:1.6 0.0002175 0.44 AML other m 2023-02-08T18:24:07.34
IV.MRCB.HHE. ML:1.6 0.000127 0.54 AML other m 2023-02-08T18:24:11.62
IV.MRCB.HHN. ML:1.4 0.0000906 0.44 AML other m 2023-02-08T18:24:12.68
IV.SOI.EHN. ML:1.6 0.00010915 1.26 AML other m 2023-02-08T18:24:13.05
IV.SOI.EHE. ML:1.5 0.00008955000000000001 0.88 AML other m 2023-02-08T18:24:16.51
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