Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 03-06-2021 and time 05:49:08 (UTC) in region 4 km SW Castelbuono (PA)

A magnitude ML 1.6 earthquake occured in region: 4 km SW Castelbuono (PA), on

  • 03-06-2021 05:49:08 (UTC)
  • 03-06-2021 07:49:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.9080, 14.0690 at 7 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Castelbuono PA 4 8943 8943
Isnello PA 7 1589 10532
Geraci Siculo PA 9 1945 12477
San Mauro Castelverde PA 11 1701 14178
Gratteri PA 11 963 15141
Petralia Sottana PA 11 2821 17962
Collesano PA 12 4054 22016
Pollina PA 12 2974 24990
Polizzi Generosa PA 12 3407 28397
Petralia Soprana PA 13 3360 31757
Castellana Sicula PA 14 3411 35168
Lascari PA 15 3588 38756
Scillato PA 15 613 39369
Cefalù PA 15 14393 53762
Gangi PA 17 6811 60573
Blufi PA 17 1029 61602
Tusa ME 17 2925 64527
Bompietro PA 18 1401 65928
Caltavuturo PA 18 4017 69945
Campofelice di Roccella PA 19 7537 77482

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km N of Caltanissetta (63360 inhabitants)
53 Km E of Bagheria (55387 inhabitants)
66 Km E of Palermo (674435 inhabitants)
79 Km NE of Agrigento (59770 inhabitants)
95 Km N of Gela (75827 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 2021-06-03
05:49:08		 37.9077 14.069 7 2021-12-29
11:12:36		 Bollettino Sismico Italiano INGV 96477991
Reviewed
Rev100 		ML 1.6 2021-06-03
05:49:08		 37.91 14.0717 7 2021-06-03
05:53:34		 Sala Sismica INGV-Roma 90745381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-03 05:49:08 ± 0.1
Latitude 37.9077 ± 0.0045
Longitude 14.0690 ± 0.0080
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 96477991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 617
Semi-minor axis of confidence ellipse (meter) 502
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 290
Circular confidence region, given by single value of horizontal uncertainty (meter) 620.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 100
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.03058
Epicentral distance of station farthest from the epicenter (degree) 0.64841
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 96477991
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-10-12 15:43:36

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 90745381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-03 05:53:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MSFR.HHZ. 2021-06-03T05:49:25.40 0.6 undecidable manual S 73 47.8188 50 0.39 43
IV.MUCR.HHZ. 2021-06-03T05:49:21.84 0.3 undecidable manual P 78 71.9724 50 -0.07 67
IV.ALJA.HHZ. 2021-06-03T05:49:20.86 0.6 undecidable manual S 238 32.745 102 0.36 45
IV.MSFR.HHZ. 2021-06-03T05:49:17.94 0.3 undecidable manual P 73 47.8188 50 -0.25 67
IV.ALJA.HHZ. 2021-06-03T05:49:15.28 0.3 undecidable manual P 238 32.745 102 -0.31 68
IV.RESU.HHZ. 2021-06-03T05:49:15.49 0.6 undecidable manual P 182 28.9488 103 0.65 41
IV.GIB.HHZ. 2021-06-03T05:49:13.27 0.6 undecidable manual S 338 9.879 125 0.2 48
IV.PLLN.EHZ. 2021-06-03T05:49:13.82 0.6 undecidable manual S 35 11.4774 121 0.3 47
IV.PETRA.HHZ. 2021-06-03T05:49:12.95 0.6 undecidable manual S 154 9.1797 127 0.09 50
IV.CSLB.HHZ. 2021-06-03T05:49:11.61 0.6 undecidable manual S 344 3.3966 154 0.04 51
IV.GIB.HHZ. 2021-06-03T05:49:11.25 0.1 negative manual P 338 9.879 125 -0.05 100
IV.PLLN.EHZ. 2021-06-03T05:49:11.47 0.3 undecidable manual P 35 11.4774 121 -0.09 74
IV.PETRA.HHZ. 2021-06-03T05:49:10.95 0.1 positive manual P 154 9.1797 127 -0.23 96
IV.CSLB.HHZ. 2021-06-03T05:49:10.27 0.1 undecidable manual P 344 3.3966 154 -0.16 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PETRA.HHE. ML:1.6 0.0007185 0.3 AML other m 2021-06-03T05:49:13.57
IV.GIB.HHN. ML:1.9 0.001325 0.42 AML other m 2021-06-03T05:49:13.83
IV.PETRA.HHN. ML:1.6 0.0007035 0.5 AML other m 2021-06-03T05:49:13.65
IV.GIB.HHE. ML:1.6 0.0005665000000000001 0.24 AML other m 2021-06-03T05:49:14.58
IV.PLLN.EHE. ML:1.6 0.00048499999999999997 0.68 AML other m 2021-06-03T05:49:16.78
IV.PLLN.EHN. ML:1.6 0.0005045000000000001 1.56 AML other m 2021-06-03T05:49:17.90
IV.RESU.HHN. ML:1.4 0.000131 0.42 AML other m 2021-06-03T05:49:22.26
IV.ALJA.HHE. ML:1.7 0.00021250000000000002 0.44 AML other m 2021-06-03T05:49:23.22
IV.ALJA.HHN. ML:1.3 0.00009570000000000001 1.3 AML other m 2021-06-03T05:49:23.23
IV.RESU.HHE. ML:1.4 0.0001227 0.38 AML other m 2021-06-03T05:49:24.73
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