Earthquake with magnitude of ML 1.8 on date 25-09-2020 and time 14:00:05 (Italy) in region Costa Siracusana (Siracusa)

A magnitude ML 1.8 earthquake occured in region: Costa Siracusana (Siracusa), on

  • 25-09-2020 12:00:05 (UTC)
  • 25-09-2020 14:00:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.07, 15.33 at 17 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
Siracusa SR 4 122291 122291
Floridia SR 16 22762 145053
Priolo Gargallo SR 16 12091 157144
Solarino SR 19 8091 165235

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km E of Siracusa (122291 inhabitants)
53 Km SE of Catania (314555 inhabitants)
56 Km E of Ragusa (73313 inhabitants)
56 Km E of Modica (54633 inhabitants)
62 Km S of Acireale (52622 inhabitants)
72 Km E of Vittoria (63339 inhabitants)
96 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 2020-09-25
12:00:05
37.07 15.33 17 2021-02-26
14:55:57
Bollettino Sismico Italiano INGV 83580721
Reviewed
Rev100
ML 1.7 2020-09-25
12:00:05
37.08 15.31 8 2020-09-25
12:10:04
Sala Sismica INGV-Roma 83238241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-25 12:00:05 ± 0.15
Latitude 37.07 ± 0.00
Longitude 15.33 ± 0.01
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83580721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 746
Semi-minor axis of confidence ellipse (meter) 529
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 83
Circular confidence region, given by single value of horizontal uncertainty (meter) 750
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 222
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.96677
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 83238241
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-25 12:10:04

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 83580721
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-10 17:34:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MCEL.HHZ. 2020-09-25T12:05:43.70 3.0 undecidable manual S 9.999 0
IV.MCRV.HHZ. 2020-09-25T12:05:00.50 3.0 undecidable manual S 9.999 0
IV.VISG.HHZ. 2020-09-25T12:01:59.71 3.0 undecidable manual P 0.68 0
IV.CPGN.EHZ. 2020-09-25T12:01:50.91 3.0 undecidable manual P 0.13 0
IV.RIBO.EHZ.01 2020-09-25T12:01:50.43 3.0 negative manual P 4.87 0
TV.SF04.EHZ. 2020-09-25T12:01:43.81 3.0 positive manual P 2.63 0
IV.BULG.HHZ. 2020-09-25T12:01:34.67 3.0 undecidable manual Sg -0.38 0
IV.PTRJ.HNZ. 2020-09-25T12:01:17.04 3.0 undecidable manual P 4.5 0
OT.TAR1.HHZ. 2020-09-25T12:01:07.61 3.0 positive manual P 2.77 0
IV.MTGR.HHZ. 2020-09-25T12:01:07.44 3.0 undecidable manual Sn -4.28 0
IV.MCRV.HHZ. 2020-09-25T12:01:06.01 3.0 undecidable manual P 2.08 0
XK.GIZZ.HHZ. 2020-09-25T12:01:03.33 3.0 undecidable manual Sn -9.37 0
IV.MCEL.HHZ. 2020-09-25T12:01:02.21 3.0 undecidable manual P 4.33 0
IV.RAFF.HHZ. 2020-09-25T12:00:31.90 1.0 undecidable manual S 281 0.7878 94 0.26 21
IV.NOV.HHZ. 2020-09-25T12:00:23.95 1.0 undecidable manual P 351 0.9668 93 0.18 21
IV.HLNI.HHZ. 2020-09-25T12:00:21.80 0.6 undecidable manual S 307 0.4587 98 -0.15 46
IV.HMDC.HHZ. 2020-09-25T12:00:21.70 0.3 undecidable manual S 256 0.4533 99 -0.1 70
IV.HPAC.HHE. 2020-09-25T12:00:21.61 0.6 undecidable manual S 213 0.4344 99 0.37 44
IV.RAFF.HHZ. 2020-09-25T12:00:21.08 0.6 undecidable manual P 281 0.7878 94 0.36 41
IV.HCRL.HHZ. 2020-09-25T12:00:18.20 1.0 undecidable manual S 311 0.3184 104 0.34 23
IT.LNT.HGZ. 2020-09-25T12:00:18.86 0.6 undecidable manual S 309 0.3399 103 0.37 45
IV.SSY.HHZ. 2020-09-25T12:00:14.90 0.3 undecidable manual S 292 0.223 112 -0.28 70
IV.HPAC.HHE. 2020-09-25T12:00:14.71 0.3 undecidable manual P 213 0.4344 99 0 71
IV.HLNI.HHZ. 2020-09-25T12:00:14.87 0.3 undecidable manual P 307 0.4587 98 -0.25 68
IV.HAVL.HHZ. 2020-09-25T12:00:14.60 0.3 undecidable manual S 236 0.2032 115 -0.03 75
IV.HMDC.HHZ. 2020-09-25T12:00:14.77 0.1 undecidable manual P 256 0.4533 99 -0.26 91
IV.AGST.EHZ. 2020-09-25T12:00:14.60 0.3 undecidable manual S 335 0.2014 116 0.01 75
IT.LNT.HGZ. 2020-09-25T12:00:13.16 0.3 undecidable manual P 309 0.3399 103 0.04 73
IV.HCRL.HHZ. 2020-09-25T12:00:12.78 0.1 undecidable manual P 311 0.3184 104 0.02 98
IV.SSY.HHZ. 2020-09-25T12:00:11.28 0.1 undecidable manual P 292 0.223 112 0.07 98
IV.HAVL.HHZ. 2020-09-25T12:00:10.90 0.1 positive manual P 236 0.2032 115 0 99
IV.AGST.EHZ. 2020-09-25T12:00:10.89 0.1 undecidable manual P 335 0.2014 116 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HAVL.HHE. ML:0 0.000693268 0.7744 AML other m 2020-09-25T12:00:15.28
IV.AGST.EHE. ML:0 0.0005345 0.84 AML other m 2020-09-25T12:00:14.92
IV.HAVL.HHN. ML:0 0.0005686691 0.1408 AML other m 2020-09-25T12:00:14.94
IV.AGST.EHN. ML:0 0.000377 1.46 AML other m 2020-09-25T12:00:15.94
IV.SSY.HHN. ML:0 0.0033025045 0.1216 AML other m 2020-09-25T12:00:15.53
IV.SSY.HHE. ML:0 0.00096463095 0.2176 AML other m 2020-09-25T12:00:15.90
IV.HCRL.HHE. ML:0 0.000246 0.7 AML other m 2020-09-25T12:00:18.49
IV.HCRL.HHN. ML:0 0.00018317255 1.12 AML other m 2020-09-25T12:00:18.61
IV.HMDC.HHN. ML:0 6.0660785E-5 0.1408 AML other m 2020-09-25T12:00:24.68
IV.HLNI.HHN. ML:0 8.675E-5 1.2 AML other m 2020-09-25T12:00:22.93
IV.HLNI.HHE. ML:0 7.46E-5 0.76 AML other m 2020-09-25T12:00:22.58
IV.HMDC.HHE. ML:0 6.675E-5 0.74 AML other m 2020-09-25T12:00:22.91
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