Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 22-01-2023 and time 10:54:25 (UTC) in region Mar Ionio Meridionale (MARE)

A magnitude ML 1.9 earthquake occured in region: Mar Ionio Meridionale (MARE), on

  • 22-01-2023 10:54:25 (UTC)
  • 22-01-2023 11:54:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.4880, 16.2530 at 28 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
87 Km SE of Reggio di Calabria (183035 inhabitants)
97 Km E of Acireale (52622 inhabitants)
97 Km NE of Siracusa (122291 inhabitants)
100 Km SE of Messina (238439 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 1.9 2023-01-22
10:54:25		 37.4882 16.2532 28 2024-03-01
17:18:02		 Bollettino Sismico Italiano INGV 116133251
Reviewed
Rev100 		ML 2.0 2023-01-22
10:54:25		 37.4847 16.2412 29 2023-01-22
11:03:35		 Sala Sismica INGV-Roma 113730961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-22 10:54:25 ± 0.17
Latitude 37.4882 ± 0.0063
Longitude 16.2532 ± 0.0125
Depth (km) 28 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116133251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1123
Semi-minor axis of confidence ellipse (meter) 453
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 303
Circular confidence region, given by single value of horizontal uncertainty (meter) 1120.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 266
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.50362
Epicentral distance of station farthest from the epicenter (degree) 1.22308
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 116133251
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-08-09 14:28:57

ML:2.0

Field Value
Value 2.0
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 113730961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-22 11:03:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HLNI.HHZ. 2023-01-22T10:54:59.94 0.6 undecidable manual S 263 122.6883 54 -0.47 52
IV.MSRU.HHZ. 2023-01-22T10:54:57.09 1.0 undecidable manual S 323 108.0141 100 0.29 29
IV.HCRL.HHE. 2023-01-22T10:54:57.14 0.6 undecidable manual S 258 110.0121 100 -0.18 58
IV.AIO.HHE. 2023-01-22T10:54:55.86 0.6 undecidable manual S 301 104.3178 100 0.02 61
IV.HAGA.HHE. 2023-01-22T10:54:54.62 0.6 undecidable manual S 257 99.4227 101 0.08 60
IV.MRCB.HHN. 2023-01-22T10:54:51.69 1.0 undecidable manual S 327 88.9443 102 -0.12 31
IV.MUCR.HHZ. 2023-01-22T10:54:47.54 0.3 undecidable manual P 297 135.7641 54 0.42 79
IV.SOI.EHZ. 2023-01-22T10:54:46.13 0.6 undecidable manual S 345 67.1772 107 -0.06 64
IV.HLNI.HHZ. 2023-01-22T10:54:45.37 0.3 undecidable manual P 263 122.6883 54 -0.13 85
IV.SSY.HNN. 2023-01-22T10:54:43.66 0.6 undecidable manual P 251 110.3118 100 -0.11 59
IV.MSRU.HHZ. 2023-01-22T10:54:43.58 0.3 undecidable manual P 323 108.0141 100 0.16 88
IV.HCRL.HHE. 2023-01-22T10:54:43.86 0.3 undecidable manual P 258 110.0121 100 0.14 88
IV.HAGA.HHE. 2023-01-22T10:54:42.26 0.3 undecidable manual P 257 99.4227 101 0.15 89
IV.MPAZ.HHE. 2023-01-22T10:54:42.90 0.6 undecidable manual S 337 55.8996 111 -0.44 61
IV.AIO.HHE. 2023-01-22T10:54:42.74 0.6 undecidable manual P 301 104.3178 100 -0.12 59
IV.MRCB.HHN. 2023-01-22T10:54:40.40 0.3 undecidable manual P 327 88.9443 102 -0.14 91
IY.CNDF.HHN. 2023-01-22T10:54:37.48 0.6 undecidable manual P 329 66.8775 107 0.24 62
IV.SOI.EHZ. 2023-01-22T10:54:37.30 0.6 undecidable manual P 345 67.1772 107 0.01 65
IV.MPAZ.HHE. 2023-01-22T10:54:35.64 0.3 undecidable manual P 337 55.8996 111 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SOI.EHN. ML:1.3 0.00003513624 1.2032 AML other m 2023-01-22T10:54:46.78
IV.SOI.EHE. ML:1.2 0.000026701815 1.7216 AML other m 2023-01-22T10:54:49.17
IV.MSRU.HHN. ML:1.9 0.000067922415 2.5152 AML other m 2023-01-22T10:54:58.49
IV.MSRU.HHE. ML:2.0 0.00009583176 1.76 AML other m 2023-01-22T10:55:00.70
IV.HLNI.HHE. ML:2.1 0.00008728835 1.4016 AML other m 2023-01-22T10:55:00.68
IV.HLNI.HHN. ML:2.0 0.000068269385 0.1216 AML other m 2023-01-22T10:55:01.80
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