Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 15-05-2018 and time 11:32:08 (Italy) in region Costa Ragusana (Ragusa)

A magnitude ML 2.4 earthquake occured in region: Costa Ragusana (Ragusa), on

  • 15-05-2018 09:32:08 (UTC)
  • 15-05-2018 11:32:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 36.3950, 14.5960 at 34 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.

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Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
54 Km S of Modica (54633 inhabitants)
60 Km S of Ragusa (73313 inhabitants)
62 Km S of Vittoria (63339 inhabitants)
81 Km SE of Gela (75827 inhabitants)
97 Km SW of Siracusa (122291 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 2.4 2018-05-15
09:32:08		 36.3952 14.5957 34 2019-04-24
14:50:44		 Bollettino Sismico Italiano INGV 57609891
Reviewed
Rev100 		ML 2.4 2018-05-15
09:32:07		 36.3963 14.5843 35 2018-05-15
09:46:13		 Sala Sismica INGV-Roma 56887341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-05-15 09:32:08 ± 0.13
Latitude 36.3952 ± 0.0090
Longitude 14.5957 ± 0.0212
Depth (km) 34 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 57609891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1932
Semi-minor axis of confidence ellipse (meter) 662
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 111
Circular confidence region, given by single value of horizontal uncertainty (meter) 1930.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 161
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.47304
Epicentral distance of station farthest from the epicenter (degree) 0.99555
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 57609891
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-03-20 14:45:39

ML:2.4

Field Value
Value 2.4
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 56887341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-05-15 09:46:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HLNI.HHZ. 2018-05-15T09:32:38.69 0.6 undecidable manual S 13 108.6135 54 -0.6 41
IV.HVZN.HHE. 2018-05-15T09:32:34.67 0.6 undecidable manual S 7 87.5457 54 -0.08 49
IV.MEU.SHZ. 2018-05-15T09:32:33.66 0.6 undecidable manual S 15 82.1511 108 0.24 48
IV.HMDC.HHZ. 2018-05-15T09:32:29.03 0.6 undecidable manual S 15 64.7907 113 -0.05 52
MN.WDD.HHZ. 2018-05-15T09:32:28.36 0.6 undecidable manual S 186 62.1933 114 -0.1 51
IV.HAGA.HHZ. 2018-05-15T09:32:26.33 0.3 undecidable manual P 27 110.5005 54 0 71
IV.HPAC.HHE. 2018-05-15T09:32:26.32 1.0 undecidable manual S 48 52.503 119 0.18 26
IV.HLNI.HHZ. 2018-05-15T09:32:25.71 0.3 undecidable manual P 13 108.6135 54 -0.38 66
IV.SSY.HHZ. 2018-05-15T09:32:24.49 0.3 undecidable manual P 27 94.6386 54 0.13 71
IV.RAFF.HHZ. 2018-05-15T09:32:24.32 0.3 undecidable manual P 347 94.1391 54 0.04 73
IV.HVZN.HHE. 2018-05-15T09:32:24.30 0.3 undecidable manual P 7 87.5457 54 0.83 59
IV.MEU.SHZ. 2018-05-15T09:32:22.71 0.1 undecidable manual P 15 82.1511 108 0.01 100
IV.HMDC.HHZ. 2018-05-15T09:32:19.97 0.3 undecidable manual P 15 64.7907 113 -0.22 75
MN.WDD.HHZ. 2018-05-15T09:32:19.86 0.3 undecidable manual P 186 62.1933 114 0.02 78
IV.HPAC.HHE. 2018-05-15T09:32:18.45 0.3 undecidable manual P 48 52.503 119 -0.05 79
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.WDD.HHN. ML:2.4 0.00043645330000000005 0.32 AML other m 2018-05-15T09:32:28.48
IV.HMDC.HHN. ML:2.3 0.0003065467 0.4416 AML other m 2018-05-15T09:32:29.85
IV.HMDC.HHE. ML:2.4 0.0004167978 0.4416 AML other m 2018-05-15T09:32:29.62
MN.WDD.HHE. ML:2.6 0.0007252397500000001 0.1792 AML other m 2018-05-15T09:32:31.96
IV.MEU.SHE. ML:0.0 0.0002999621 0.2752 AML other m 2018-05-15T09:32:34.59
IV.MEU.SHN. ML:0.0 0.00030232349999999997 0.2816 AML other m 2018-05-15T09:32:38.85
IV.HLNI.HHN. ML:2.3 0.000164643 1.8592 AML other m 2018-05-15T09:32:43.97
IV.HLNI.HHE. ML:2.3 0.000160025795 0.1216 AML other m 2018-05-15T09:32:43.80
IV.SSY.HHE. ML:2.2 0.00016651608000000002 0.3008 AML other m 2018-05-15T09:32:44.10
IV.SSY.HHN. ML:2.4 0.0002237936 0.2368 AML other m 2018-05-15T09:32:45.73
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
Waveforms Seismic signals in miniseed + resp format Download