Earthquake with magnitude of ML 0.9 on date 21-02-2023 and time 02:09:51 (UTC) in region 3 km SE Castell'Umberto (ME)

A magnitude ML 0.9 earthquake occured in region: 3 km SE Castell'Umberto (ME), on

  • 21-02-2023 02:09:51 (UTC)
  • 21-02-2023 03:09:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.0690, 14.8280 at 8 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Castell'Umberto ME 3 3128 3128
Sinagra ME 3 2705 5833
Tortorici ME 4 6435 12268
San Salvatore di Fitalia ME 4 1319 13587
Ficarra ME 5 1469 15056
Ucria ME 5 1058 16114
Galati Mamertino ME 6 2627 18741
Mirto ME 7 974 19715
Naso ME 7 3813 23528
Sant'Angelo di Brolo ME 7 3090 26618
Frazzanò ME 7 711 27329
Raccuja ME 7 1041 28370
Longi ME 8 1473 29843
Brolo ME 10 5783 35626
Piraino ME 11 3962 39588
San Marco d'Alunzio ME 11 1996 41584
Capri Leone ME 11 4515 46099
Floresta ME 12 485 46584
Librizzi ME 12 1660 48244
Alcara li Fusi ME 12 1980 50224
San Piero Patti ME 12 2915 53139
Capo d'Orlando ME 13 13254 66393
Montagnareale ME 13 1615 68008
Gioiosa Marea ME 13 7074 75082
Torrenova ME 13 4386 79468
Militello Rosmarino ME 13 1324 80792
Patti ME 14 13431 94223
Sant'Agata di Militello ME 17 12624 106847
Montalbano Elicona ME 17 2287 109134

Municipalities with at least 50000 inhabitants

An earthquake occurred to
59 Km NW of Acireale (52622 inhabitants)
65 Km W of Messina (238439 inhabitants)
67 Km NW of Catania (314555 inhabitants)
72 Km W of Reggio di Calabria (183035 inhabitants)
93 Km NE of Caltanissetta (63360 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 0.9 2023-02-21
02:09:51
38.0692 14.8278 8 2024-03-01
17:18:17
Bollettino Sismico Italiano INGV 122901831
Reviewed
Rev100
ML 0.9 2023-02-21
02:09:51
38.0717 14.8272 7 2023-02-21
02:21:48
Sala Sismica INGV-Roma 114643661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-21 02:09:51 ± 0.22
Latitude 38.0692 ± 0.0171
Longitude 14.8278 ± 0.0080
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 122901831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1857
Semi-minor axis of confidence ellipse (meter) 593
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 162
Circular confidence region, given by single value of horizontal uncertainty (meter) 1860.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 181
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.18886
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 114643661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-21 02:21:48

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 122901831
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-11-08 00:02:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SGG.HHZ. 2023-02-21T02:10:39.09 3.0 undecidable manual Pn 0.23 0
IV.ACATE.EHZ. 2023-02-21T02:10:09.57 3.0 undecidable manual S -0.03 0
IV.MSFR.HHZ. 2023-02-21T02:09:59.18 0.6 undecidable manual S 259 20.9679 111 0.14 48
IV.LIBRI.HHZ. 2023-02-21T02:09:55.37 0.6 undecidable manual S 80 8.9799 132 -0.06 50
IV.MSFR.HHZ. 2023-02-21T02:09:55.62 0.1 undecidable manual P 259 20.9679 111 -0.12 96
IV.MUCR.HHZ. 2023-02-21T02:09:54.49 0.3 undecidable manual S 126 4.995 149 -0.05 75
IV.MUCR.HHZ. 2023-02-21T02:09:53.20 0.1 undecidable manual P 126 4.995 149 0.06 100
IV.LIBRI.HHZ. 2023-02-21T02:09:53.70 0.1 undecidable manual P 80 8.9799 132 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LIBRI.HHN. ML:0.5 0.00005115 0.24 AML other m 2023-02-21T02:09:55.62
IV.LIBRI.HNN. ML:1.1 0.000188 0.62 AML other m 2023-02-21T02:09:55.66
IV.LIBRI.HHE. ML:0.8 0.00010245 0.38 AML other m 2023-02-21T02:09:56.22
IV.LIBRI.HNE. ML:1.2 0.0002145 1.18 AML other m 2023-02-21T02:09:56.11
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