Earthquake with magnitude of ML 1.6 on date 03-04-2023 and time 10:12:00 (Italy) in region Costa Siracusana (Siracusa)

A magnitude ML 1.6 earthquake occured in region: Costa Siracusana (Siracusa), on

  • 03-04-2023 08:12:00 (UTC)
  • 03-04-2023 10:12:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.0810, 15.5060 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Siracusa SR 19 122291 122291

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km E of Siracusa (122291 inhabitants)
60 Km SE of Catania (314555 inhabitants)
66 Km SE of Acireale (52622 inhabitants)
71 Km E of Modica (54633 inhabitants)
71 Km E of Ragusa (73313 inhabitants)
87 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
Bulletin
Rev1000
ML 1.6 2023-04-03
08:12:00
37.0807 15.5063 22 2024-03-01
17:18:08
Bollettino Sismico Italiano INGV 117400561
Reviewed
Rev100
ML 1.6 2023-04-03
08:12:00
37.0963 15.4832 24 2023-04-03
08:31:47
Sala Sismica INGV-Roma 116003281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-03 08:12:00 ± 0.15
Latitude 37.0807 ± 0.0063
Longitude 15.5063 ± 0.0101
Depth (km) 22 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 117400561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 723
Semi-minor axis of confidence ellipse (meter) 647
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 282
Circular confidence region, given by single value of horizontal uncertainty (meter) 720.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 301
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 15
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.92180
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 116003281
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-03 08:31:47

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 117400561
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-08 16:35:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IMOL.HNZ. 2023-04-03T08:13:51.11 3.0 positive manual Pn 1.59 0
IV.ARVD.HHZ. 2023-04-03T08:13:50.72 3.0 undecidable manual Pg 16.610001 0
IV.OSSC.HHZ. 2023-04-03T08:13:44.50 3.0 undecidable manual Pn 3 0
IV.MRB1.HHZ. 2023-04-03T08:13:39.58 3.0 undecidable manual Sn -4.6 0
IV.NRCA.HHZ. 2023-04-03T08:13:26.23 3.0 positive manual Pn 1.28 0
IV.TRTR.HHZ. 2023-04-03T08:13:18.53 3.0 undecidable manual Pn -3.67 0
IV.SNAL.HHZ. 2023-04-03T08:13:07.40 3.0 undecidable manual Pg 13.04 0
IV.VAGA.HNZ. 2023-04-03T08:13:05.63 3.0 undecidable manual Pn 2.73 0
IV.CAFE.HHZ. 2023-04-03T08:13:05.30 3.0 undecidable manual Pg 9.57 0
IV.MCRV.HHZ. 2023-04-03T08:13:01.96 3.0 undecidable manual Pg 9.5 0
IV.MOCO.HHZ. 2023-04-03T08:13:00.07 3.0 undecidable manual Pn -0.41 0
IV.CMPR.HHZ. 2023-04-03T08:12:44.78 3.0 undecidable manual Pn -1.2 0
IV.SALB.HHZ. 2023-04-03T08:12:40.10 3.0 undecidable manual Pn -0.12 0
IV.CET2.HHZ. 2023-04-03T08:12:37.22 3.0 undecidable manual Pn 2.24 0
IV.SELL.HHZ. 2023-04-03T08:12:36.38 3.0 undecidable manual Pg 7.27 0
IV.HMDC.HHZ. 2023-04-03T08:12:20.90 0.3 undecidable manual S 258 65.49 101 -0.11 68
IV.IVPL.HHZ. 2023-04-03T08:12:20.74 3.0 undecidable manual Pn -0.21 0
IV.SICLA.EHZ. 2023-04-03T08:12:20.20 3.0 undecidable manual P 2.73 0
IV.RAFF.HHZ. 2023-04-03T08:12:18.48 0.3 undecidable manual P 279 102.3198 97 0.39 61
IV.HCRL.HHN. 2023-04-03T08:12:16.70 0.6 undecidable manual S 298 47.5191 107 0.34 45
IV.SSY.HHZ. 2023-04-03T08:12:14.36 0.6 undecidable manual S 283 39.2274 111 0.1 48
IV.HAGA.HHZ. 2023-04-03T08:12:13.97 0.6 undecidable manual S 306 38.4282 111 -0.1 48
IV.HAVL.HHZ. 2023-04-03T08:12:13.73 0.3 undecidable manual S 249 36.6411 113 0.12 73
IV.AGST.EHZ. 2023-04-03T08:12:12.14 0.6 undecidable manual S 308 31.4463 117 -0.22 47
IV.HMDC.HHZ. 2023-04-03T08:12:12.18 0.1 undecidable manual P 258 65.49 101 -0.29 87
IV.HSRS.HHZ. 2023-04-03T08:12:10.85 0.1 undecidable manual S 273 25.1526 124 -0.07 99
IV.HCRL.HHN. 2023-04-03T08:12:09.89 0.1 undecidable manual P 298 47.5191 107 0.11 95
IV.SSY.HHZ. 2023-04-03T08:12:08.57 0.1 undecidable manual P 283 39.2274 111 0 97
IV.HAGA.HHZ. 2023-04-03T08:12:08.40 0.1 undecidable manual P 306 38.4282 111 -0.06 96
IV.HAVL.HHZ. 2023-04-03T08:12:08.25 0.1 positive manual P 249 36.6411 113 0.05 98
IV.AGST.EHZ. 2023-04-03T08:12:07.36 0.1 undecidable manual P 308 31.4463 117 -0.12 96
IV.HSRS.HHZ. 2023-04-03T08:12:06.65 0.1 undecidable manual P 273 25.1526 124 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HSRS.HHE. ML:1.5 0.00015019917499999998 0.3968 AML other m 2023-04-03T08:12:10.94
IV.HSRS.HHN. ML:1.4 0.0001032883 0.16 AML other m 2023-04-03T08:12:11.39
IV.HSRS.HNE. ML:1.5 0.0001372506 1.1648 AML other m 2023-04-03T08:12:12.53
IV.AGST.EHE. ML:1.7 0.0002059563 0.1024 AML other m 2023-04-03T08:12:12.92
IV.HAVL.HHN. ML:1.9 0.000259513 0.0768 AML other m 2023-04-03T08:12:13.96
IV.HAVL.HHE. ML:1.8 0.0002192208 0.4032 AML other m 2023-04-03T08:12:13.90
IV.SSY.HHN. ML:2.1 0.00043057615 0.4224 AML other m 2023-04-03T08:12:14.97
IV.SSY.HHE. ML:1.7 0.00014293048 0.1984 AML other m 2023-04-03T08:12:15.01
IV.SSY.HNN. ML:1.4 0.000075682945 0.16 AML other m 2023-04-03T08:12:15.23
IV.HSRS.HNN. ML:1.6 0.0001911953 1.2416 AML other m 2023-04-03T08:12:14.57
IV.SSY.HNE. ML:1.4 0.0000753 0.94 AML other m 2023-04-03T08:12:15.70
IV.HMDC.HNN. ML:2.1 0.000235777265 1.1904 AML other m 2023-04-03T08:12:20.80
IV.HMDC.HHN. ML:1.9 0.00013742835 1.984 AML other m 2023-04-03T08:12:24.80
IV.HMDC.HHE. ML:1.2 0.000027748285 1.9392 AML other m 2023-04-03T08:12:34.33
IV.RAFF.HHN. ML:1.7 0.000044328519999999996 2.8224 AML other m 2023-04-03T08:12:34.07
IV.RAFF.HHE. ML:1.6 0.000035769515000000005 3.4944 AML other m 2023-04-03T08:12:46.81
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