Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 30-10-2020 and time 13:44:21 (Italy) in region 3 km SE Castelbuono (PA)

A magnitude ML 2.4 earthquake occured in region: 3 km SE Castelbuono (PA), on

  • 30-10-2020 12:44:21 (UTC)
  • 30-10-2020 13:44:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.9100, 14.1090 at 23 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 3 8943 8943
Geraci Siculo PA 7 1945 10888
San Mauro Castelverde PA 7 1701 12589
Isnello PA 10 1589 14178
Pollina PA 10 2974 17152
Petralia Sottana PA 12 2821 19973
Petralia Soprana PA 13 3360 23333
Gratteri PA 14 963 24296
Tusa ME 14 2925 27221
Polizzi Generosa PA 14 3407 30628
Collesano PA 15 4054 34682
Gangi PA 15 6811 41493
Castellana Sicula PA 15 3411 44904
Cefalù PA 16 14393 59297
Pettineo ME 17 1350 60647
Blufi PA 18 1029 61676
Lascari PA 18 3588 65264
Castel di Lucio ME 18 1294 66558
Bompietro PA 18 1401 67959
Scillato PA 19 613 68572
Motta d'Affermo ME 19 739 69311

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km N of Caltanissetta (63360 inhabitants)
56 Km E of Bagheria (55387 inhabitants)
69 Km E of Palermo (674435 inhabitants)
81 Km NE of Agrigento (59770 inhabitants)
95 Km N of Gela (75827 inhabitants)
97 Km NW of Catania (314555 inhabitants)
99 Km W 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 2.4 2020-10-30
12:44:21		 37.9103 14.1088 23 2021-02-26
14:56:09		 Bollettino Sismico Italiano INGV 85194941
Reviewed
Rev100 		ML 2.4 2020-10-30
12:44:21		 37.9175 14.1013 24 2020-10-30
13:02:16		 Sala Sismica INGV-Roma 84264161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-30 12:44:21 ± 0.21
Latitude 37.9103 ± 0.0090
Longitude 14.1088 ± 0.0103
Depth (km) 23 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 85194941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 937
Semi-minor axis of confidence ellipse (meter) 775
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 191
Circular confidence region, given by single value of horizontal uncertainty (meter) 940.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 87
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.04856
Epicentral distance of station farthest from the epicenter (degree) 0.61693
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 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 84264161
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-30 13:02:16

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 85194941
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-04 09:17:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MUCR.HHZ. 2020-10-30T12:44:43.05 0.6 undecidable manual S 77 68.4759 102 0.36 42
IV.MSFR.HHZ. 2020-10-30T12:44:36.83 0.6 undecidable manual S 72 44.4222 110 0.34 44
IV.SCIAR.HHZ. 2020-10-30T12:44:33.61 0.3 undecidable manual S 276 31.6461 119 0.23 69
IV.MUCR.HHZ. 2020-10-30T12:44:33.54 0.1 positive manual P 77 68.4759 102 -0.25 87
IV.GALF.HHZ. 2020-10-30T12:44:30.67 0.3 undecidable manual P 119 45.8208 109 0.26 66
IV.PLLN.EHZ. 2020-10-30T12:44:29.45 0.1 undecidable manual S 18 9.5793 154 0.25 96
IV.GIB.HHZ. 2020-10-30T12:44:29.82 0.1 undecidable manual S 321 11.4774 150 0.39 93
IV.PETRA.HHZ. 2020-10-30T12:44:29.04 0.1 undecidable manual S 176 8.5803 157 -0.04 100
IV.MSFR.HHZ. 2020-10-30T12:44:29.98 0.1 undecidable manual P 72 44.4222 110 -0.22 91
IV.SCIAR.HHZ. 2020-10-30T12:44:28.41 0.1 undecidable manual P 276 31.6461 119 0 96
IV.RESU.HHZ. 2020-10-30T12:44:28.49 0.1 positive manual P 189 29.5482 121 0.35 89
IV.CSLB.HHZ. 2020-10-30T12:44:28.49 0.1 undecidable manual S 304 5.3946 165 -0.32 94
IV.GIB.HHZ. 2020-10-30T12:44:26.07 0.1 positive manual P 321 11.4774 150 -0.05 99
IV.CSLB.HHZ. 2020-10-30T12:44:25.42 0.1 negative manual P 304 5.3946 165 -0.35 94
IV.PETRA.HHZ. 2020-10-30T12:44:25.63 0.1 negative manual P 176 8.5803 157 -0.3 95
IV.PLLN.EHZ. 2020-10-30T12:44:25.86 0.1 negative manual P 18 9.5793 154 -0.14 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSLB.HHE. ML:2.4 0.0015498069999999998 0.32 AML other m 2020-10-30T12:44:28.84
IV.CSLB.HHN. ML:2.2 0.0011830885 0.2944 AML other m 2020-10-30T12:44:28.81
IV.PETRA.HHN. ML:2.6 0.0027857775 0.3008 AML other m 2020-10-30T12:44:29.48
IV.PETRA.HHE. ML:2.7 0.0033723045 1.6416 AML other m 2020-10-30T12:44:29.85
IV.PLLN.EHN. ML:2.9 0.005469791000000001 1.5392 AML other m 2020-10-30T12:44:29.97
IV.PLLN.EHE. ML:2.9 0.005264252499999999 0.4224 AML other m 2020-10-30T12:44:30.56
IV.GIB.HHN. ML:2.6 0.0022611884999999997 0.3648 AML other m 2020-10-30T12:44:30.38
IV.GIB.HHE. ML:2.4 0.0017901235 0.3648 AML other m 2020-10-30T12:44:31.64
IV.RESU.HHE. ML:2.3 0.00089285575 0.8576 AML other m 2020-10-30T12:44:35.42
IV.RESU.HHN. ML:2.7 0.001857034 0.48 AML other m 2020-10-30T12:44:36.74
IV.SCIAR.HNN. ML:2.2 0.0006215893500000001 0.4096 AML other m 2020-10-30T12:44:36.77
IV.SCIAR.HNE. ML:2.2 0.0006461166000000001 0.448 AML other m 2020-10-30T12:44:36.90
IV.SCIAR.HHE. ML:2.2 0.0006325407999999999 0.48 AML other m 2020-10-30T12:44:36.91
IV.MSFR.HHN. ML:2.0 0.00028381865000000003 0.3008 AML other m 2020-10-30T12:44:38.16
IV.SCIAR.HHN. ML:2.2 0.0006198264 1.6992 AML other m 2020-10-30T12:44:38.04
IV.MSFR.HHE. ML:2.0 0.0002516322 0.2368 AML other m 2020-10-30T12:44:38.17
IV.GALF.HHE. ML:2.5 0.00080425425 0.4608 AML other m 2020-10-30T12:44:41.93
IV.GALF.HNE. ML:1.6 0.00010395174999999999 1.36 AML other m 2020-10-30T12:44:42.91
IV.GALF.HHN. ML:2.5 0.00077675755 1.6608 AML other m 2020-10-30T12:44:43.84
IV.MUCR.HHE. ML:2.3 0.00031439954999999995 0.4608 AML other m 2020-10-30T12:44:44.82
IV.GALF.HNN. ML:1.8 0.000167734185 1.1104 AML other m 2020-10-30T12:44:45.18
IV.MUCR.HHN. ML:2.6 0.0006816562500000001 0.3776 AML other m 2020-10-30T12:44:45.18
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