Earthquake with magnitude of ML 2.3 on date 05-10-2021 and time 13:20:19 (UTC) in region Costa Ragusana (Ragusa)

A magnitude ML 2.3 earthquake occured in region: Costa Ragusana (Ragusa), on

  • 05-10-2021 13:20:19 (UTC)
  • 05-10-2021 15:20:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 36.5530, 15.0150 at 7 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
Portopalo di Capo Passero SR 18 3887 3887
Pachino SR 20 22205 26092

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km SE of Modica (54633 inhabitants)
49 Km SE of Ragusa (73313 inhabitants)
61 Km SE of Vittoria (63339 inhabitants)
62 Km SW of Siracusa (122291 inhabitants)
89 Km SE of Gela (75827 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 2.3 2021-10-05
13:20:19
36.5528 15.015 7 2022-03-30
13:04:34
Bollettino Sismico Italiano INGV 100525131
Reviewed
Rev100
ML 2.3 2021-10-05
13:20:19
36.5518 15.0167 7 2021-10-05
13:38:17
Sala Sismica INGV-Roma 96258901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-05 13:20:19 ± 0.24
Latitude 36.5528 ± 0.0090
Longitude 15.0150 ± 0.0101
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 100525131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1009
Semi-minor axis of confidence ellipse (meter) 856
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 184
Circular confidence region, given by single value of horizontal uncertainty (meter) 1010.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 301
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.24462
Epicentral distance of station farthest from the epicenter (degree) 0.74014
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 96258901
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-05 13:38:17

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 100525131
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-02 10:30:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAGA.HHE. 2021-10-05T13:20:44.40 0.3 undecidable manual S 9 82.1511 50 -0.2 90
IV.HCRL.HHZ. 2021-10-05T13:20:44.52 0.6 undecidable manual S 1 81.0522 50 0.23 60
IV.HVZN.HNZ. 2021-10-05T13:20:42.59 0.6 undecidable manual S 339 74.2701 50 0.09 62
IV.HVIT.HHE. 2021-10-05T13:20:40.13 0.3 undecidable manual S 318 65.5899 50 -0.05 96
IV.SSY.HHZ. 2021-10-05T13:20:40.92 0.3 undecidable manual S 4 67.2771 50 0.29 91
IV.HSRS.HHE. 2021-10-05T13:20:39.20 0.6 undecidable manual S 17 62.6928 50 -0.19 62
IV.HAGA.HHE. 2021-10-05T13:20:33.55 0.3 undecidable manual P 9 82.1511 50 -0.34 87
IV.HCRL.HHZ. 2021-10-05T13:20:33.84 0.3 undecidable manual P 1 81.0522 50 0.12 92
IV.HVZN.HNZ. 2021-10-05T13:20:32.61 0.6 undecidable manual P 339 74.2701 50 -0.07 63
IV.HVIT.HHE. 2021-10-05T13:20:31.24 0.3 undecidable manual P 318 65.5899 50 -0.1 95
IV.SSY.HHZ. 2021-10-05T13:20:31.75 0.3 undecidable manual P 4 67.2771 50 0.15 94
IV.HSRS.HHE. 2021-10-05T13:20:30.83 0.6 undecidable manual P 17 62.6928 50 -0.06 64
IV.ISPIC.EHZ. 2021-10-05T13:20:28.79 0.3 undecidable manual S 339 27.1506 104 -0.19 100
IV.ISPIC.EHZ. 2021-10-05T13:20:25.16 0.3 undecidable manual P 339 27.1506 104 0.29 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ISPIC.EHE. ML:2.2 0.0010088335000000002 0.2624 AML other m 2021-10-05T13:20:29.79
IV.ISPIC.HNE. ML:2.2 0.00100946875 0.2624 AML other m 2021-10-05T13:20:29.79
IV.ISPIC.HNN. ML:2.2 0.0008268939 0.1088 AML other m 2021-10-05T13:20:29.67
IV.ISPIC.EHN. ML:2.2 0.0008228654500000001 0.2176 AML other m 2021-10-05T13:20:29.08
IV.SSY.HHE. ML:2.4 0.0004306112 0.3008 AML other m 2021-10-05T13:20:42.35
IV.SSY.HHN. ML:2.8 0.00110660285 0.3648 AML other m 2021-10-05T13:20:42.85
IV.HCRL.HHE. ML:2.4 0.000315 0.4 AML other m 2021-10-05T13:20:45.58
IV.HCRL.HHN. ML:2.0 0.00014994455 0.1792 AML other m 2021-10-05T13:20:46.82
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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