Earthquake with magnitude of ML 1.5 on date 23-12-2022 and time 01:51:36 (UTC) in region Costa Ragusana (Ragusa)

A magnitude ML 1.5 earthquake occured in region: Costa Ragusana (Ragusa), on

  • 23-12-2022 01:51:36 (UTC)
  • 23-12-2022 02:51:36 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 36.8460, 14.3010 at 5 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km SW of Vittoria (63339 inhabitants)
25 Km S of Gela (75827 inhabitants)
39 Km W of Ragusa (73313 inhabitants)
41 Km W of Modica (54633 inhabitants)
75 Km S of Caltanissetta (63360 inhabitants)
82 Km SE of Agrigento (59770 inhabitants)
91 Km W 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 1.5 2022-12-23
01:51:36
36.8463 14.3007 5 2024-03-01
15:28:16
Bollettino Sismico Italiano INGV 113657301
Reviewed
Rev100
ML 1.6 2022-12-23
01:51:37
36.8502 14.3097 4 2022-12-23
02:02:09
Sala Sismica INGV-Roma 113031931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-12-23 01:51:36 ± 0.3
Latitude 36.8463 ± 0.0135
Longitude 14.3007 ± 0.0112
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 113657301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1600
Semi-minor axis of confidence ellipse (meter) 243
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 24
Circular confidence region, given by single value of horizontal uncertainty (meter) 1600.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 225
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.18706
Epicentral distance of station farthest from the epicenter (degree) 0.69068
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 113657301
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-06-14 12:18:12

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations 5
Type of magnitude ML
Reference to an origin 113031931
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-12-23 02:02:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSY.HHZ. 2022-12-23T01:52:02.18 0.6 undecidable manual S 63 76.6677 50 1.03 34
IV.HLNI.HHZ. 2022-12-23T01:52:00.72 0.6 undecidable manual S 42 75.2691 50 -0.03 47
IV.HAVL.HHE. 2022-12-23T01:52:00.86 0.3 undecidable manual S 80 73.9704 50 0.45 64
IV.CLTA.HHE. 2022-12-23T01:51:54.35 0.6 undecidable manual S 319 45.8208 96 1.49 28
IV.RAFF.HHZ. 2022-12-23T01:51:52.12 0.6 undecidable manual S 7 42.1245 97 0.53 44
IV.HMDC.HHE. 2022-12-23T01:51:51.90 0.3 undecidable manual S 74 44.622 96 -0.54 66
IV.HLNI.HHZ. 2022-12-23T01:51:50.39 0.1 undecidable manual P 42 75.2691 50 -0.27 89
IV.SSY.HHZ. 2022-12-23T01:51:50.49 0.3 undecidable manual P 63 76.6677 50 -0.4 65
IV.HAVL.HHE. 2022-12-23T01:51:50.46 0.3 undecidable manual P 80 73.9704 50 0 71
IV.CLTA.HHE. 2022-12-23T01:51:46.13 0.1 undecidable manual P 319 45.8208 96 0.03 99
IV.HVZN.HHE. 2022-12-23T01:51:46.63 0.3 undecidable manual P 45 52.0035 50 -0.46 67
IV.ACATE.HNZ. 2022-12-23T01:51:46.67 0.6 undecidable manual S 42 26.5512 101 0.43 47
IV.HVIT.HHZ. 2022-12-23T01:51:45.74 0.6 undecidable manual S 50 25.4523 101 -0.14 50
IV.HMDC.HHE. 2022-12-23T01:51:45.99 0.3 undecidable manual P 74 44.622 96 0.13 73
IV.CROCE.HHZ. 2022-12-23T01:51:44.90 0.3 undecidable manual S 94 20.7681 104 0.59 68
IV.RAFF.HHZ. 2022-12-23T01:51:44.78 0.1 undecidable manual P 7 42.1245 97 -0.59 87
IV.HVIT.HHZ. 2022-12-23T01:51:41.89 0.1 undecidable manual P 50 25.4523 101 -0.18 99
IV.ACATE.HNZ. 2022-12-23T01:51:41.92 0.3 undecidable manual P 42 26.5512 101 -0.36 72
IV.CROCE.HHZ. 2022-12-23T01:51:41.35 0.1 undecidable manual P 94 20.7681 104 0.19 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CROCE.HHE. ML:1.0 0.00007276359 0.12 AML other m 2022-12-23T01:51:44.97
IV.CROCE.HNE. ML:1.1 0.00009851024 0.3696 AML other m 2022-12-23T01:51:44.97
IV.CROCE.HNN. ML:1.4 0.00017755745 0.5104 AML other m 2022-12-23T01:51:45.21
IV.CROCE.HHN. ML:1.2 0.00011048919500000001 0.12 AML other m 2022-12-23T01:51:45.21
IV.HVIT.HHE. ML:1.4 0.00017519295 0.26 AML other m 2022-12-23T01:51:45.85
IV.HVIT.HHN. ML:1.6 0.0002645195 0.22 AML other m 2022-12-23T01:51:46.00
IV.RAFF.HHE. ML:1.5 0.00009641756 1.1392 AML other m 2022-12-23T01:51:52.49
IV.RAFF.HHN. ML:1.3 0.000061034615 0.44 AML other m 2022-12-23T01:51:52.40
IV.HLNI.HHE. ML:1.4 0.000038319015 0.2208 AML other m 2022-12-23T01:52:01.42
IV.HLNI.HHN. ML:1.5 0.000045814170000000004 0.2208 AML other m 2022-12-23T01:52:01.32
IV.SSY.HHN. ML:2.3 0.00030657555000000004 1.6608 AML other m 2022-12-23T01:52:02.55
IV.SSY.HNN. ML:1.8 0.00008558168499999999 1.2704 AML other m 2022-12-23T01:52:02.51
IV.SSY.HNE. ML:1.8 0.00008991194999999999 1.2512 AML other m 2022-12-23T01:52:01.95
IV.SSY.HHE. ML:2.1 0.000188817 0.84 AML other m 2022-12-23T01:52:02.46
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