Earthquake with magnitude of ML 1.2 on date 23-10-2019 and time 00:33:36 (Italy) in region Costa Siracusana (Siracusa)

A magnitude ML 1.2 earthquake occured in region: Costa Siracusana (Siracusa), on

  • 22-10-2019 22:33:36 (UTC)
  • 23-10-2019 00:33:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.0730, 15.4060 at 22 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
Siracusa SR 10 122291 122291

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km E of Siracusa (122291 inhabitants)
56 Km SE of Catania (314555 inhabitants)
62 Km E of Modica (54633 inhabitants)
62 Km E of Ragusa (73313 inhabitants)
64 Km SE of Acireale (52622 inhabitants)
78 Km E of Vittoria (63339 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 1.2 2019-10-22
22:33:36
37.073 15.4062 22 2019-10-22
23:13:45
Sala Sismica INGV-Roma 73399521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-22 22:33:36 ± 0.18
Latitude 37.0730 ± 0.0045
Longitude 15.4062 ± 0.0135
Depth (km) 22 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73399521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1010
Semi-minor axis of confidence ellipse (meter) 654
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 268
Circular confidence region, given by single value of horizontal uncertainty (meter) 1010.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 257
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.23203
Epicentral distance of station farthest from the epicenter (degree) 0.50632
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 73399521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-22 23:13:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ISPIC.EHZ. 2019-10-22T22:33:54.21 0.3 undecidable manual S 234 55.2003 104 0.02 95
IV.HLNI.HHZ. 2019-10-22T22:33:54.08 0.3 undecidable manual S 303 56.1993 104 -0.39 88
IV.HPAC.HHZ. 2019-10-22T22:33:53.58 0.3 undecidable manual S 219 52.0035 105 0.19 93
IV.HAGA.HHZ. 2019-10-22T22:33:48.63 0.3 undecidable manual S 317 32.3454 117 0.17 95
IV.SSY.HHZ. 2019-10-22T22:33:48.11 0.3 undecidable manual S 288 30.8469 118 0 100
IV.HLNI.HHZ. 2019-10-22T22:33:46.97 0.3 undecidable manual P 303 56.1993 104 0.04 94
IV.HPAC.HHZ. 2019-10-22T22:33:46.38 0.3 undecidable manual P 219 52.0035 105 0.08 94
IV.AGST.EHZ. 2019-10-22T22:33:46.93 0.3 undecidable manual S 322 25.752 124 -0.01 100
IV.ISPIC.EHZ. 2019-10-22T22:33:46.56 0.3 undecidable manual P 234 55.2003 104 -0.21 91
IV.SSY.HHZ. 2019-10-22T22:33:43.41 0.3 undecidable manual P 288 30.8469 118 0.14 96
IV.HAGA.HHZ. 2019-10-22T22:33:43.59 0.3 undecidable manual P 317 32.3454 117 0.13 96
IV.AGST.EHZ. 2019-10-22T22:33:42.22 0.6 undecidable manual P 322 25.752 124 -0.37 63
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.AGST.EHE. ML:1.0 0.00004637658 0.1664 AML other m 2019-10-22T22:33:47.37
IV.AGST.EHN. ML:1.2 0.00006731508 0.1408 AML other m 2019-10-22T22:33:47.55
IV.SSY.HHE. ML:1.6 0.00016339575 0.0896 AML other m 2019-10-22T22:33:49.38
IV.SSY.HHN. ML:2.0 0.0004117767 0.1024 AML other m 2019-10-22T22:33:50.08
IV.HAGA.HHE. ML:1.0 0.0000328612 0.0768 AML other m 2019-10-22T22:33:49.10
IV.HAGA.HHN. ML:0.9 0.000029785098 0.1024 AML other m 2019-10-22T22:33:49.12
IV.ISPIC.EHE. ML:1.4 0.000059905995000000005 0.1792 AML other m 2019-10-22T22:33:54.27
IV.ISPIC.EHN. ML:1.2 0.000031669755 0.0768 AML other m 2019-10-22T22:33:54.33
IV.HLNI.HHE. ML:1.2 0.000029452369999999997 0.1024 AML other m 2019-10-22T22:33:55.45
IV.HLNI.HHN. ML:1.2 0.000028466690000000002 0.128 AML other m 2019-10-22T22:33:54.94
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