Earthquake with magnitude of ML 0.8 on date 11-08-2022 and time 20:26:51 (Italy) in region Costa Siracusana (Siracusa)

A magnitude ML 0.8 earthquake occured in region: Costa Siracusana (Siracusa), on

  • 11-08-2022 18:26:51 (UTC)
  • 11-08-2022 20:26:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.2670, 15.3120 at 27 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Augusta SR 9 36305 36305
Priolo Gargallo SR 16 12091 48396
Melilli SR 19 13621 62017

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km N of Siracusa (122291 inhabitants)
33 Km SE of Catania (314555 inhabitants)
41 Km SE of Acireale (52622 inhabitants)
64 Km NE of Ragusa (73313 inhabitants)
67 Km NE of Modica (54633 inhabitants)
77 Km E of Vittoria (63339 inhabitants)
97 Km E of Gela (75827 inhabitants)
98 Km S of Reggio di Calabria (183035 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
Reviewed
Rev100
ML 0.8 2022-08-11
18:26:51
37.2667 15.3115 27 2022-08-11
18:33:29
Sala Sismica INGV-Roma 108419411
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-08-11 18:26:51 ± 0.27
Latitude 37.2667 ± 0.0108
Longitude 15.3115 ± 0.0215
Depth (km) 27 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 108419411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2152
Semi-minor axis of confidence ellipse (meter) 374
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 243
Circular confidence region, given by single value of horizontal uncertainty (meter) 2150.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 283
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.35883
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 108419411
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-08-11 18:33:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MSRU.HHZ. 2022-08-11T18:27:11.73 3.0 negative manual P -0.19 0
IV.HLNI.HHZ. 2022-08-11T18:27:05.45 0.3 undecidable manual S 283 39.8268 118 -0.2 69
IV.HAVL.HHE. 2022-08-11T18:27:04.96 0.6 undecidable manual S 206 37.9287 119 -0.25 45
IV.HCRL.HHZ. 2022-08-11T18:27:02.69 0.3 undecidable manual S 274 24.6531 133 0.35 68
IV.SSY.HHZ. 2022-08-11T18:27:02.06 0.3 undecidable manual S 240 24.2535 133 -0.18 71
IV.HAGA.HHZ. 2022-08-11T18:27:00.45 0.3 undecidable manual S 278 13.9749 149 -0.06 74
IV.HAVL.HHE. 2022-08-11T18:26:59.55 0.3 undecidable manual P 206 37.9287 119 0.14 71
IV.HLNI.HHZ. 2022-08-11T18:26:59.59 0.3 undecidable manual P 283 39.8268 118 -0.07 71
IV.SSY.HHZ. 2022-08-11T18:26:57.58 0.6 undecidable manual P 240 24.2535 133 -0.12 48
IV.HCRL.HHZ. 2022-08-11T18:26:57.94 0.1 negative manual P 274 24.6531 133 0.19 95
IV.HAGA.HHZ. 2022-08-11T18:26:56.72 0.1 undecidable manual P 278 13.9749 149 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HAGA.HHE. ML:1.0 0.000050025479999999996 0.7424 AML other m 2022-08-11T18:27:03.14
IV.HAGA.HHN. ML:0.9 0.000037584855000000004 0.6784 AML other m 2022-08-11T18:27:05.55
IV.HCRL.HHE. ML:0.6 0.000015245144 0.1664 AML other m 2022-08-11T18:27:02.77
IV.HCRL.HHN. ML:0.7 0.00002022683 0.4352 AML other m 2022-08-11T18:27:12.63
IV.HLNI.HHE. ML:0.8 0.000018338960000000002 0.2048 AML other m 2022-08-11T18:27:05.57
IV.HLNI.HHN. ML:0.6 0.000011390103 0.1152 AML other m 2022-08-11T18:27:05.72
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