Earthquake with magnitude of ML 1.6 on date 02-04-2022 and time 00:23:27 (Italy) in region Costa Siracusana (Siracusa)

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

  • 01-04-2022 22:23:27 (UTC)
  • 02-04-2022 00:23:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.2030, 15.6300 at 36 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
34 Km NE of Siracusa (122291 inhabitants)
59 Km SE of Catania (314555 inhabitants)
61 Km SE of Acireale (52622 inhabitants)
86 Km E of Ragusa (73313 inhabitants)
86 Km E of Modica (54633 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 2022-04-01
22:23:27
37.2033 15.6302 36 2022-07-08
12:33:55
Bollettino Sismico Italiano INGV 104436641
Reviewed
Rev100
ML 1.6 2022-04-01
22:23:27
37.1942 15.6353 32 2022-04-01
22:33:42
Sala Sismica INGV-Roma 102683131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-04-01 22:23:27 ± 0.12
Latitude 37.2033 ± 0.0072
Longitude 15.6302 ± 0.0090
Depth (km) 36 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 104436641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 853
Semi-minor axis of confidence ellipse (meter) 760
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 299
Circular confidence region, given by single value of horizontal uncertainty (meter) 850.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 212
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.81928
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.4
Num. used stations 4
Type of magnitude ML
Reference to an origin 102683131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-04-01 22:33:42

ML:1.6

Field Value
Value 1.6
Uncertainty 0.4
Num. used stations 5
Type of magnitude ML
Reference to an origin 104436641
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-05-20 09:27:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.POFI.HHZ. 2022-04-01T22:25:22.89 3.0 undecidable manual Sn -5.26 0
IV.MCRV.HHZ. 2022-04-01T22:25:18.48 3.0 undecidable manual Sg 19.08 0
IV.MOCO.HHZ. 2022-04-01T22:25:16.66 3.0 undecidable manual Sn 3 0
IV.VISG.HHZ. 2022-04-01T22:25:12.04 3.0 positive manual Pn -3.03 0
MN.IDI.HHZ. 2022-04-01T22:25:06.28 3.0 undecidable manual Pn -9.2 0
IV.CRTC.HHZ. 2022-04-01T22:25:04.93 3.0 undecidable manual Pn 0.86 0
IX.SCL3.EHZ.02 2022-04-01T22:24:58.10 3.0 undecidable manual Sn 1.42 0
IX.COL3.HHZ.02 2022-04-01T22:24:54.41 3.0 undecidable manual Sn -2.34 0
IV.BULG.HHZ. 2022-04-01T22:24:43.17 3.0 undecidable manual Sn 1.3 0
IV.MTMR.EHZ. 2022-04-01T22:24:36.10 3.0 negative manual Pg 15.4 0
IV.ISPIC.EHZ. 2022-04-01T22:23:52.40 0.3 undecidable manual S 234 79.6647 54 0.05 69
IV.HLNI.HHZ. 2022-04-01T22:23:49.84 0.3 undecidable manual S 284 68.7756 113 -0.03 73
IV.HAVL.HHN. 2022-04-01T22:23:46.06 0.6 undecidable manual S 239 52.503 120 0.09 49
IV.HCRL.HHN. 2022-04-01T22:23:46.45 0.6 undecidable manual S 280 53.502 120 0.24 48
IV.SSY.HHZ. 2022-04-01T22:23:45.31 0.3 undecidable manual S 264 49.4172 122 0.03 76
IV.HAGA.HHZ. 2022-04-01T22:23:43.37 0.3 undecidable manual S 282 42.9237 126 -0.47 70
IV.MPAZ.HHZ. 2022-04-01T22:23:43.06 0.3 undecidable manual P 22 89.5437 54 -0.07 70
1J.FX02.HHE. 2022-04-01T22:23:43.87 0.3 undecidable manual S 266 43.8228 126 -0.16 75
IY.CNDF.HHN.00 2022-04-01T22:23:43.01 0.3 undecidable manual P 13 90.9423 54 -0.3 67
1J.FX01.HHZ. 2022-04-01T22:23:42.13 0.3 undecidable manual S 242 33.6441 134 0.2 75
IV.HSRS.HNZ. 2022-04-01T22:23:42.14 0.6 undecidable manual S 251 38.1285 130 -0.69 43
IV.ISPIC.EHZ. 2022-04-01T22:23:41.85 0.1 undecidable manual P 234 79.6647 54 -0.05 96
IV.HLNI.HHZ. 2022-04-01T22:23:40.67 0.1 undecidable manual P 284 68.7756 113 0.19 94
IV.SSY.HHZ. 2022-04-01T22:23:38.05 0.1 undecidable manual P 264 49.4172 122 0.22 97
IV.HAVL.HHN. 2022-04-01T22:23:38.34 0.1 undecidable manual P 239 52.503 120 0.12 98
IV.HCRL.HHN. 2022-04-01T22:23:38.73 0.3 undecidable manual P 280 53.502 120 0.36 70
1J.FX02.HHE. 2022-04-01T22:23:37.20 0.3 undecidable manual P 266 43.8228 126 0.1 75
IV.HAGA.HHZ. 2022-04-01T22:23:37.13 0.1 positive manual P 282 42.9237 126 0.14 100
IV.HSRS.HNZ. 2022-04-01T22:23:36.33 0.3 undecidable manual P 251 38.1285 130 -0.08 77
1J.FX01.HHZ. 2022-04-01T22:23:35.55 0.3 undecidable manual P 242 33.6441 134 -0.34 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HAGA.HHE. ML:1.3 0.000046819222 1.5648 AML other m 2022-04-01T22:23:43.91
IV.HAGA.HHN. ML:1.3 0.000044850895 0.3584 AML other m 2022-04-01T22:23:44.58
IV.SSY.HHN. ML:2.2 0.000360608525 0.2048 AML other m 2022-04-01T22:23:45.88
IV.SSY.HHE. ML:1.9 0.00014957325 0.0896 AML other m 2022-04-01T22:23:46.25
IV.SSY.HNE. ML:1.6 0.00008405136000000001 0.1792 AML other m 2022-04-01T22:23:46.25
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