Earthquake with magnitude of ML 1.8 on date 03-07-2020 and time 09:12:21 (Italy) in region Costa Siracusana (Siracusa)

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

  • 03-07-2020 07:12:21 (UTC)
  • 03-07-2020 09:12:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.17, 15.71 at 22 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Siracusa (122291 inhabitants)
66 Km SE of Catania (314555 inhabitants)
69 Km SE of Acireale (52622 inhabitants)
91 Km E of Modica (54633 inhabitants)
91 Km E of Ragusa (73313 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 2020-07-03
07:12:21
37.17 15.71 22 2020-11-19
12:37:06
Bollettino Sismico Italiano INGV 84678801
Reviewed
Rev100
ML 1.8 2020-07-03
07:12:21
37.18 15.66 31 2020-07-03
07:27:37
Sala Sismica INGV-Roma 80724591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-03 07:12:21 ± 0.38
Latitude 37.17 ± 0.02
Longitude 15.71 ± 0.02
Depth (km) 22 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84678801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2528
Semi-minor axis of confidence ellipse (meter) 1686
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 175
Circular confidence region, given by single value of horizontal uncertainty (meter) 2530
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 254
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.07559
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 84678801
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-16 00:19:32

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 80724591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-03 07:27:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ROSPO.HHZ. 2020-07-03T07:15:03.53 3.0 undecidable manual Sg 17.84 0
IV.GAVE.EHZ. 2020-07-03T07:14:54.70 3.0 undecidable manual Sn -9.42 0
IV.TOLF.HHZ. 2020-07-03T07:14:49.71 3.0 undecidable manual Sn -6.98 0
IV.APEC.HHZ. 2020-07-03T07:14:25.82 3.0 negative manual Pg 18.09 0
IV.MF5.EHZ. 2020-07-03T07:14:17.26 3.0 undecidable manual Pg 20.110001 0
IV.GAVE.EHZ. 2020-07-03T07:14:13.35 3.0 positive manual Pg 18.42 0
IV.ARRO.EHZ. 2020-07-03T07:14:11.37 3.0 undecidable manual Pg 17.450001 0
IV.VIVA.HHZ. 2020-07-03T07:13:41.48 3.0 positive manual Pn -1.91 0
OT.OT12.EHZ. 2020-07-03T07:13:38.93 3.0 undecidable manual Pn 2.49 0
IV.SERS.HHZ. 2020-07-03T07:13:33.77 3.0 undecidable manual Sg -0.19 0
IV.NOCI.HHZ. 2020-07-03T07:13:30.13 3.0 negative manual Pg 2.3 0
IV.VBKN.HHZ. 2020-07-03T07:13:29.81 3.0 positive manual Pg 3.73 0
IV.IFIL.HHZ. 2020-07-03T07:13:21.92 3.0 undecidable manual Sg 3.13 0
IV.CMPR.HHZ. 2020-07-03T07:13:17.12 3.0 undecidable manual Pn -1.02 0
IV.IFIL.HHZ. 2020-07-03T07:12:57.83 3.0 undecidable manual Pg 2.07 0
IV.RAFF.HHZ. 2020-07-03T07:12:56.50 0.6 undecidable manual S 273 1.0756 96 0.76 48
IV.CROCE.HHE. 2020-07-03T07:12:53.22 0.6 undecidable manual S 250 0.9991 96 -0.27 49
IV.HVZN.HNE. 2020-07-03T07:12:48.26 0.6 undecidable manual S 271 0.7932 98 0.82 50
IV.HPAC.HHN. 2020-07-03T07:12:46.01 0.6 undecidable manual S 229 0.7114 99 0.97 45
IV.MEU.EHZ. 2020-07-03T07:12:44.62 0.3 undecidable manual S 265 0.7051 100 -0.24 79
IV.HLNI.HHZ. 2020-07-03T07:12:43.90 0.3 undecidable manual S 285 0.6907 100 -0.54 71
IV.RAFF.HHZ. 2020-07-03T07:12:40.80 0.1 undecidable manual P 273 1.0756 96 -0.37 100
IV.CROCE.HHE. 2020-07-03T07:12:39.37 0.1 undecidable manual P 250 0.9991 96 -0.51 99
IV.AIO.HHE. 2020-07-03T07:12:38.68 0.6 undecidable manual P 335 0.8831 97 0.77 40
IV.HAGA.HHZ. 2020-07-03T07:12:37.73 0.6 undecidable manual S 284 0.4569 106 0.05 59
IV.HVZN.HNE. 2020-07-03T07:12:36.95 0.3 undecidable manual P 271 0.7932 98 0.57 73
IV.HPAC.HHN. 2020-07-03T07:12:35.06 0.3 undecidable manual P 229 0.7114 99 0.07 83
IV.MEU.EHZ. 2020-07-03T07:12:34.50 0.3 undecidable manual P 265 0.7051 100 -0.39 81
IV.HLNI.HHZ. 2020-07-03T07:12:34.14 0.3 undecidable manual P 285 0.6907 100 -0.51 80
IV.HAGA.HHZ. 2020-07-03T07:12:30.78 0.3 undecidable manual P 284 0.4569 106 0.03 90
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HAGA.HHN. ML:1.6 9.343038E-5 0.2592 AML other m 2020-07-03T07:12:40.29
IV.HAGA.HHE. ML:1.6 8.7570075E-5 0.32 AML other m 2020-07-03T07:12:41.16
IV.HLNI.HHE. ML:2 0.000151 1.04 AML other m 2020-07-03T07:12:44.64
IV.MEU.EHE. ML:1.9 9.975E-5 0.58 AML other m 2020-07-03T07:12:45.95
IV.MEU.EHN. ML:2 0.00012527037 0.1984 AML other m 2020-07-03T07:12:47.42
IV.HLNI.HHN. ML:1.9 0.000116 0.32 AML other m 2020-07-03T07:12:48.51
IV.RAFF.HHE. ML:1.7 3.355749E-5 1.0016 AML other m 2020-07-03T07:12:55.25
IV.RAFF.HHN. ML:2 7.3073025E-5 0.6816 AML other m 2020-07-03T07:13:00.38
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