Earthquake with magnitude of ML 1.3 on date 31-05-2020 and time 01:47:20 (Italy) in region 9 km E Butera (CL)

A magnitude ML 1.3 earthquake occured in region: 9 km E Butera (CL), on

  • 30-05-2020 23:47:20 (UTC)
  • 31-05-2020 01:47:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.18, 14.28 at 37 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
Butera CL 9 4754 4754
Niscemi CL 10 27558 32312
Gela CL 13 75827 108139
San Cono CT 14 2697 110836
Mazzarino CL 15 12145 122981
San Michele di Ganzaria CT 17 3245 126226

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km N of Gela (75827 inhabitants)
34 Km NW of Vittoria (63339 inhabitants)
40 Km SE of Caltanissetta (63360 inhabitants)
49 Km NW of Ragusa (73313 inhabitants)
56 Km NW of Modica (54633 inhabitants)
64 Km E of Agrigento (59770 inhabitants)
80 Km W of Catania (314555 inhabitants)
91 Km W of Siracusa (122291 inhabitants)
92 Km SW of Acireale (52622 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 1.3 2020-05-30
23:47:20
37.18 14.28 37 2020-11-19
12:37:01
Bollettino Sismico Italiano INGV 82885081
Reviewed
Rev100
ML 1.3 2020-05-30
23:47:20
37.17 14.21 36 2020-05-30
23:58:25
Sala Sismica INGV-Roma 79731441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-30 23:47:20 ± 0.28
Latitude 37.18 ± 0.02
Longitude 14.28 ± 0.02
Depth (km) 37 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 82885081

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1924
Semi-minor axis of confidence ellipse (meter) 1013
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 210
Circular confidence region, given by single value of horizontal uncertainty (meter) 1920
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 115
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.48
Epicentral distance of station closest to the epicenter (degree) 0.07554
Epicentral distance of station farthest from the epicenter (degree) 0.62953
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 82885081
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-09-13 23:39:35

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 79731441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-30 23:58:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SSY.HHZ. 2020-05-30T23:47:43.88 0.6 undecidable manual S 92 0.6295 54 0.87 35
IV.HLNI.HHZ. 2020-05-30T23:47:40.72 0.6 undecidable manual S 70 0.4973 120 1.13 32
IV.MEU.EHZ. 2020-05-30T23:47:38.87 0.6 undecidable manual S 99 0.4407 123 0.71 40
IV.CROCE.HHE. 2020-05-30T23:47:37.38 0.3 undecidable manual S 150 0.4011 126 0.19 71
IV.HVZN.HNZ. 2020-05-30T23:47:35.80 0.6 undecidable manual S 90 0.3444 130 -0.06 49
IV.CLTA.HHZ. 2020-05-30T23:47:34.82 0.3 undecidable manual S 265 0.2572 139 0.8 60
IV.ACATE.EHE. 2020-05-30T23:47:33.97 0.6 undecidable manual S 132 0.2338 142 0.39 47
IV.SSY.HHZ. 2020-05-30T23:47:33.38 0.3 undecidable manual P 92 0.6295 54 -0.12 69
IV.CMDO.HHZ. 2020-05-30T23:47:32.17 0.3 undecidable manual P 308 0.4623 122 1.15 48
IV.RAFF.HHZ. 2020-05-30T23:47:31.49 0.3 undecidable manual S 56 0.0755 166 -0.01 78
IV.MEU.EHZ. 2020-05-30T23:47:30.65 0.1 undecidable manual P 99 0.4407 123 -0.06 96
IV.HLNI.HHZ. 2020-05-30T23:47:30.73 0.1 undecidable manual P 70 0.4973 120 -0.8 77
IV.CROCE.HHE. 2020-05-30T23:47:29.92 0.3 undecidable manual P 150 0.4011 126 -0.22 70
IV.HVZN.HNZ. 2020-05-30T23:47:29.04 0.1 undecidable manual P 90 0.3444 130 -0.34 93
IV.ACATE.EHE. 2020-05-30T23:47:28.18 0.6 undecidable manual P 132 0.2338 142 0.12 49
IV.CPTP.HHZ. 2020-05-30T23:47:28.21 0.1 undecidable manual P 337 0.2464 141 0.01 100
IV.CLTA.HHZ. 2020-05-30T23:47:27.69 0.1 undecidable manual P 265 0.2572 139 -0.63 87
IV.RAFF.HHZ. 2020-05-30T23:47:26.13 0.1 undecidable manual P 56 0.0755 166 -0.73 86
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RAFF.HHE. ML:1.3 6.9871455E-5 0.3584 AML other m 2020-05-30T23:47:31.72
IV.RAFF.HHN. ML:1.3 7.4447975E-5 0.4096 AML other m 2020-05-30T23:47:31.78
IV.MEU.EHE. ML:1.2 3.301617E-5 0.256 AML other m 2020-05-30T23:47:39.19
IV.MEU.EHN. ML:1.4 4.8110935E-5 0.1792 AML other m 2020-05-30T23:47:39.65
IV.HLNI.HHE. ML:1.2 3.074197E-5 0.0768 AML other m 2020-05-30T23:47:40.88
IV.HLNI.HHN. ML:1.1 2.543125E-5 0.0896 AML other m 2020-05-30T23:47:40.95
IV.SSY.HHE. ML:1.8 8.602827E-5 0.1152 AML other m 2020-05-30T23:47:44.49
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