Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 09-08-2019 and time 00:12:42 (UTC) in region 3 km W Geraci Siculo (PA)

A magnitude ML 2.0 earthquake occured in region: 3 km W Geraci Siculo (PA), on

  • 09-08-2019 00:12:42 (UTC)
  • 09-08-2019 02:12:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8700, 14.1240 at 6 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
Geraci Siculo PA 3 1945 1945
Petralia Sottana PA 8 2821 4766
San Mauro Castelverde PA 8 1701 6467
Castelbuono PA 8 8943 15410
Petralia Soprana PA 8 3360 18770
Gangi PA 11 6811 25581
Castellana Sicula PA 12 3411 28992
Polizzi Generosa PA 13 3407 32399
Isnello PA 13 1589 33988
Blufi PA 14 1029 35017
Bompietro PA 14 1401 36418
Pollina PA 14 2974 39392
Tusa ME 16 2925 42317
Castel di Lucio ME 17 1294 43611
Gratteri PA 17 963 44574
Collesano PA 17 4054 48628
Pettineo ME 18 1350 49978
Scillato PA 19 613 50591
Alimena PA 20 2032 52623

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km N of Caltanissetta (63360 inhabitants)
59 Km E of Bagheria (55387 inhabitants)
72 Km E of Palermo (674435 inhabitants)
78 Km NE of Agrigento (59770 inhabitants)
90 Km N of Gela (75827 inhabitants)
94 Km W of Catania (314555 inhabitants)
96 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 2.0 2019-08-09
00:12:42		 37.8697 14.1243 6 2019-11-13
14:31:07		 Bollettino Sismico Italiano INGV 73332731
Reviewed
Rev100 		ML 2.0 2019-08-09
00:12:42		 37.8467 14.1113 7 2019-08-09
00:21:28		 Sala Sismica INGV-Roma 71287141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-09 00:12:42 ± 0.18
Latitude 37.8697 ± 0.0117
Longitude 14.1243 ± 0.0159
Depth (km) 6 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73332731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1240
Semi-minor axis of confidence ellipse (meter) 1218
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 14
Circular confidence region, given by single value of horizontal uncertainty (meter) 1240.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 59
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.03687
Epicentral distance of station farthest from the epicenter (degree) 1.11876
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 73332731
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-19 00:01:30

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 71287141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-09 00:21:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSY.HHZ. 2019-08-09T00:13:03.18 0.3 undecidable manual P 133 114.996 50 0.57 55
IV.USI.HHZ. 2019-08-09T00:13:03.14 0.1 undecidable manual P 319 124.1868 50 -0.89 63
IV.MSFR.HHZ. 2019-08-09T00:12:58.90 0.6 undecidable manual S 66 44.7219 50 0.57 42
IV.ALJA.HHZ. 2019-08-09T00:12:55.55 0.3 undecidable manual S 248 35.1426 100 0.32 68
IV.MUCR.HHZ. 2019-08-09T00:12:54.81 0.3 undecidable manual P 73 68.2761 50 -0.61 59
MN.VAE.HHN. 2019-08-09T00:12:54.29 0.6 undecidable manual P 156 48.8178 50 1.88 20
IV.CPTP.HHE. 2019-08-09T00:12:54.39 0.3 undecidable manual P 176 51.4152 50 1.58 38
IV.CMDO.HHE. 2019-08-09T00:12:53.87 0.3 undecidable manual P 211 52.2033 50 0.93 53
IV.MNO.SHZ. 2019-08-09T00:12:52.61 0.3 undecidable manual P 82 50.4162 50 -0.05 70
IV.SOLUN.HHZ. 2019-08-09T00:12:52.97 0.3 undecidable manual P 296 57.2982 50 -0.75 57
IV.MSFR.HHZ. 2019-08-09T00:12:51.00 0.1 undecidable manual P 66 44.7219 50 -0.79 77
IV.CAGR.HHE. 2019-08-09T00:12:51.86 0.3 undecidable manual P 130 42.9237 50 0.36 67
IV.GALF.HHZ. 2019-08-09T00:12:50.97 0.1 undecidable manual P 114 42.624 50 -0.48 87
IV.GIB.HHZ. 2019-08-09T00:12:49.58 0.3 undecidable manual S 327 15.873 111 0.81 60
IV.ALJA.HHZ. 2019-08-09T00:12:48.93 0.3 undecidable manual P 248 35.1426 100 -1.07 52
IV.PLLN.EHZ. 2019-08-09T00:12:48.76 0.6 undecidable manual S 7 13.7751 114 0.68 42
IV.PLLN.EHZ. 2019-08-09T00:12:46.14 0.1 positive manual P 7 13.7751 114 0.27 96
IV.GIB.HHZ. 2019-08-09T00:12:46.31 0.1 undecidable manual P 327 15.873 111 0.04 100
IV.PETRA.HHZ. 2019-08-09T00:12:45.21 0.6 undecidable manual S 192 4.0959 147 -0.22 49
IV.PETRA.HHZ. 2019-08-09T00:12:43.78 0.1 negative manual P 192 4.0959 147 -0.56 91
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GIB.HHN. ML:2.0 0.0009199999999999999 0.34 AML other m 2019-08-09T00:12:51.48
IV.PLLN.EHE. ML:1.8 0.0006979999999999999 1.18 AML other m 2019-08-09T00:12:51.14
IV.PLLN.EHN. ML:1.9 0.000963 0.86 AML other m 2019-08-09T00:12:53.76
IV.GIB.HHE. ML:2.1 0.00122 0.58 AML other m 2019-08-09T00:12:54.40
IV.ALJA.HHE. ML:2.0 0.0004195 1.66 AML other m 2019-08-09T00:12:59.91
IV.ALJA.HHN. ML:1.9 0.000357 0.32 AML other m 2019-08-09T00:13:00.41
IV.MSFR.HHN. ML:1.5 0.0000892 0.36 AML other m 2019-08-09T00:13:02.24
IV.MSFR.HHE. ML:1.4 0.00007805000000000001 0.42 AML other m 2019-08-09T00:13:03.61
IV.SOLUN.HHN. ML:1.9 0.000192 0.96 AML other m 2019-08-09T00:13:05.93
IV.SOLUN.HHE. ML:2.2 0.00035950000000000006 1.46 AML other m 2019-08-09T00:13:05.83
IV.GALF.HHE. ML:2.1 0.0004145 0.74 AML other m 2019-08-09T00:13:06.63
IV.GALF.HHN. ML:2.2 0.00046550000000000004 0.5 AML other m 2019-08-09T00:13:06.34
IV.MUCR.HHN. ML:2.0 0.00017199999999999998 0.54 AML other m 2019-08-09T00:13:11.54
IV.MUCR.HHE. ML:2.0 0.0001575 1.38 AML other m 2019-08-09T00:13:11.82
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