Earthquake (quarry blast) with magnitude of ML 1.8 on date 23-05-2022 and time 08:19:19 (UTC) in region 1 km E Priolo Gargallo (SR)

A magnitude ML 1.8 (quarry blast) earthquake occured in region: 1 km E Priolo Gargallo (SR), on

  • 23-05-2022 08:19:19 (UTC)
  • 23-05-2022 10:19:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.1610, 15.1960 at 0 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Event type: quarry blast.

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
Priolo Gargallo SR 1 12091 12091
Melilli SR 6 13621 25712
Augusta SR 8 36305 62017
Solarino SR 9 8091 70108
Floridia SR 10 22762 92870
Siracusa SR 14 122291 215161
Sortino SR 14 8690 223851
Canicattini Bagni SR 18 7109 230960

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km NW of Siracusa (122291 inhabitants)
39 Km S of Catania (314555 inhabitants)
49 Km NE of Ragusa (73313 inhabitants)
50 Km S of Acireale (52622 inhabitants)
51 Km NE of Modica (54633 inhabitants)
63 Km E of Vittoria (63339 inhabitants)
85 Km E 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 1.8 2022-05-23
08:19:19
37.1613 15.1962 1 2023-01-31
19:03:17
Bollettino Sismico Italiano INGV 106163371
Reviewed
Rev100
ML 2.0 2022-05-23
08:19:18
37.2235 15.2588 9 2022-05-23
08:37:05
Sala Sismica INGV-Roma 105044531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-05-23 08:19:19 ± 0.15
Latitude 37.1613 ± 0.0090
Longitude 15.1962 ± 0.0124
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type quarry blast
Origin ID 106163371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1400
Semi-minor axis of confidence ellipse (meter) 460
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 226
Circular confidence region, given by single value of horizontal uncertainty (meter) 1400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 189
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.05126
Epicentral distance of station farthest from the epicenter (degree) 0.21044
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 105044531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-05-23 08:37:05

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 106163371
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-09-02 10:41:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAVL.HHZ. 2022-05-23T08:19:24.51 0.6 positive manual P 196 23.3544 91 0.17 64
IV.HCRL.HHE. 2022-05-23T08:19:23.57 0.6 undecidable manual P 313 19.7691 91 -0.06 66
1J.FX01.HHE. 2022-05-23T08:19:22.63 0.6 undecidable manual P 142 14.4744 92 0.07 67
IV.SSY.HHZ. 2022-05-23T08:19:21.68 0.3 undecidable manual P 268 10.878 93 -0.16 99
IV.HSRS.HHZ. 2022-05-23T08:19:21.14 0.3 undecidable manual P 163 7.9809 94 -0.12 100
1J.FX02.HHE. 2022-05-23T08:19:20.96 0.3 undecidable manual P 289 5.6943 95 0.16 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSY.HHE. ML:1.9 0.00153 0.76 AML other m 2022-05-23T08:19:26.61
IV.SSY.HNE. ML:1.9 0.001355 1.82 AML other m 2022-05-23T08:19:28.95
IV.SSY.HHN. ML:2.4 0.004415 1.02 AML other m 2022-05-23T08:19:29.43
IV.SSY.HNN. ML:1.9 0.00135 0.22 AML other m 2022-05-23T08:19:29.33
IV.HAVL.HHE. ML:1.2 0.00010525000000000001 0.26 AML other m 2022-05-23T08:19:36.15
IV.HAVL.HHN. ML:1.3 0.000133 1.2 AML other m 2022-05-23T08:19:36.13
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