Earthquake (controlled explosion) with magnitude of ML 1.9 on date 25-09-2020 and time 10:06:58 (Italy) in region Costa Siracusana (Siracusa)

A magnitude ML 1.9 (controlled explosion) earthquake occured in region: Costa Siracusana (Siracusa), on

  • 25-09-2020 08:06:58 (UTC)
  • 25-09-2020 10:06:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.2020, 15.2820 at 0 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Event type: controlled explosion.

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 6 36305 36305
Priolo Gargallo SR 10 12091 48396
Melilli SR 14 13621 62017
Siracusa SR 16 122291 184308
Floridia SR 18 22762 207070
Solarino SR 18 8091 215161

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km N of Siracusa (122291 inhabitants)
38 Km SE of Catania (314555 inhabitants)
47 Km S of Acireale (52622 inhabitants)
58 Km NE of Ragusa (73313 inhabitants)
60 Km NE of Modica (54633 inhabitants)
72 Km E of Vittoria (63339 inhabitants)
93 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 1.9 2020-09-25
08:06:58
37.2025 15.2823 0 2021-02-26
14:55:56
Bollettino Sismico Italiano INGV 83327101
Reviewed
Rev100
ML 2.0 2020-09-25
08:06:58
37.2593 15.3248 7 2020-09-25
08:37:28
Sala Sismica INGV-Roma 83230651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-25 08:06:58 ± 0.19
Latitude 37.2025 ± 0.0072
Longitude 15.2823 ± 0.0147
Depth (km) 0 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type controlled explosion
Origin ID 83327101

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1330
Semi-minor axis of confidence ellipse (meter) 770
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 283
Circular confidence region, given by single value of horizontal uncertainty (meter) 1330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 178
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.06925
Epicentral distance of station farthest from the epicenter (degree) 1.16282
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 83327101
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-02 09:16:11

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 15
Type of magnitude ML
Reference to an origin 83230651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-25 08:37:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.CEL.HHZ. 2020-09-25T08:07:21.26 1.0 undecidable manual P 24 129.0708 50 -0.44 19
IV.MSRU.HHZ. 2020-09-25T08:07:20.26 1.0 undecidable manual P 9 119.3916 50 0.04 21
IV.MSFR.HHZ. 2020-09-25T08:07:18.96 1.0 undecidable manual P 327 110.4006 50 0.13 21
IV.MPNC.HHN. 2020-09-25T08:07:17.74 1.0 undecidable manual P 3 104.9172 50 -0.24 21
IV.MUCR.HHZ. 2020-09-25T08:07:17.17 0.6 undecidable manual P 339 99.9222 50 -0.04 45
IV.NOV.HHZ. 2020-09-25T08:07:15.92 0.3 undecidable manual P 352 92.4408 50 -0.14 66
IV.RAFF.HHZ. 2020-09-25T08:07:14.20 0.3 undecidable manual P 272 81.252 50 -0.15 68
IV.AIO.HHE. 2020-09-25T08:07:14.83 0.3 undecidable manual P 357 85.3479 50 -0.14 67
IV.EPZF.HHZ. 2020-09-25T08:07:14.57 0.3 undecidable manual P 332 78.4659 50 0.66 59
IV.HPAC.HHE. 2020-09-25T08:07:10.49 0.3 undecidable manual P 202 58.9965 90 -0.31 68
IV.HVZN.HNZ. 2020-09-25T08:07:08.25 0.6 undecidable manual P 267 50.1165 90 -0.79 40
IV.HLNI.HHZ. 2020-09-25T08:07:06.38 0.3 undecidable manual P 294 39.627 90 -0.56 66
IV.HAVL.HHZ. 2020-09-25T08:07:05.38 0.1 undecidable manual P 208 30.4473 90 0.29 96
IT.LNT.HGZ. 2020-09-25T08:07:04.13 0.1 undecidable manual P 291 26.5512 90 -0.17 100
IV.HCRL.HHZ. 2020-09-25T08:07:03.93 0.1 undecidable manual P 292 23.754 90 0.17 100
IV.SSY.HHZ. 2020-09-25T08:07:03.16 0.1 undecidable manual P 255 19.0698 90 0.34 97
IV.AGST.EHZ. 2020-09-25T08:07:00.85 0.1 positive manual P 321 7.6812 91 0.31 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSY.HHE. ML:2.5 0.0029490535 0.3968 AML other m 2020-09-25T08:07:07.26
IV.HLNI.HHE. ML:1.7 0.00016472795 0.2624 AML other m 2020-09-25T08:07:08.66
IV.HLNI.HHN. ML:1.7 0.0001946355 0.2176 AML other m 2020-09-25T08:07:14.06
IV.EPZF.HHE. ML:2.0 0.00013461855 1.3216 AML other m 2020-09-25T08:07:18.76
IV.EPZF.HHN. ML:2.0 0.0001428328 1.6608 AML other m 2020-09-25T08:07:20.85
IV.NOV.HHE. ML:2.1 0.00015429019999999998 1.6352 AML other m 2020-09-25T08:07:21.99
IV.MSFR.HHE. ML:1.5 0.000023671375 0.2944 AML other m 2020-09-25T08:07:21.22
IV.MSRU.HHN. ML:2.2 0.00013375705 0.3968 AML other m 2020-09-25T08:07:22.68
IV.MUCR.HHN. ML:1.6 0.000044645005000000004 1.4176 AML other m 2020-09-25T08:07:22.06
IV.NOV.HHN. ML:2.2 0.00018085475 1.7184 AML other m 2020-09-25T08:07:22.13
IV.MUCR.HHE. ML:1.6 0.0000431215 0.3008 AML other m 2020-09-25T08:07:24.81
IV.MSRU.HHE. ML:2.1 0.00009360516 0.4032 AML other m 2020-09-25T08:07:28.99
IV.RAFF.HHN. ML:1.8 0.00007917676 1.7184 AML other m 2020-09-25T08:07:29.96
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