Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 02-12-2019 and time 12:12:25 (Italy) in region 7 km S Gangi (PA)

A magnitude ML 1.8 earthquake occured in region: 7 km S Gangi (PA), on

  • 02-12-2019 11:12:25 (UTC)
  • 02-12-2019 12:12:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.74, 14.22 at 18 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
Gangi PA 7 6811 6811
Bompietro PA 11 1401 8212
Alimena PA 11 2032 10244
Petralia Soprana PA 12 3360 13604
Sperlinga EN 12 805 14409
Blufi PA 13 1029 15438
Petralia Sottana PA 13 2821 18259
Geraci Siculo PA 14 1945 20204
Nicosia EN 16 13899 34103
Castellana Sicula PA 16 3411 37514
Villarosa EN 17 4937 42451
Calascibetta EN 17 4528 46979
Resuttano CL 18 2038 49017
Castel di Lucio ME 18 1294 50311
Leonforte EN 19 13439 63750
San Mauro Castelverde PA 20 1701 65451
Enna EN 20 28019 93470

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NE of Caltanissetta (63360 inhabitants)
73 Km SE of Bagheria (55387 inhabitants)
74 Km NE of Agrigento (59770 inhabitants)
75 Km N of Gela (75827 inhabitants)
81 Km W of Catania (314555 inhabitants)
85 Km W of Acireale (52622 inhabitants)
86 Km SE of Palermo (674435 inhabitants)
92 Km N of Vittoria (63339 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 1.8 2019-12-02
11:12:25		 37.74 14.22 18 2020-02-28
16:42:12		 Bollettino Sismico Italiano INGV 74555461
Reviewed
Rev100 		ML 1.8 2019-12-02
11:12:25		 37.75 14.18 22 2019-12-02
11:19:32		 Sala Sismica INGV-Roma 74246141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-02 11:12:25 ± 0.27
Latitude 37.74 ± 0.01
Longitude 14.22 ± 0.02
Depth (km) 18 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 74555461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1278
Semi-minor axis of confidence ellipse (meter) 1270
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 132
Circular confidence region, given by single value of horizontal uncertainty (meter) 1280
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 138
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.12411
Epicentral distance of station farthest from the epicenter (degree) 0.41459
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:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 74246141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-02 11:19:32

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 74555461
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-11 14:42:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GIB.HHE. 2019-12-02T11:12:37.53 0.3 undecidable manual S 329 0.2923 109 0.56 70
IV.CSLB.HHZ. 2019-12-02T11:12:35.07 0.6 undecidable manual S 327 0.2338 115 -0.31 48
IV.PLLN.EHZ. 2019-12-02T11:12:35.99 0.6 undecidable manual S 347 0.259 112 -0.06 50
IV.ALJA.HHE. 2019-12-02T11:12:34.39 1.0 undecidable manual P 271 0.3678 104 1.01 19
IV.MSFR.HHZ. 2019-12-02T11:12:34.63 0.1 undecidable manual P 45 0.4146 102 0.46 91
IV.RESU.HHZ. 2019-12-02T11:12:34.16 0.6 undecidable manual S 234 0.1592 128 0.68 44
IV.PETRA.HHZ. 2019-12-02T11:12:32.94 0.3 undecidable manual S 318 0.1241 136 0.24 77
IV.GALF.HHZ. 2019-12-02T11:12:31.67 0.6 undecidable manual P 96 0.2761 110 -0.21 50
IV.GIB.HHE. 2019-12-02T11:12:31.90 0.3 undecidable manual P 329 0.2923 109 -0.24 72
IV.PLLN.EHZ. 2019-12-02T11:12:31.23 0.6 undecidable manual P 347 0.259 112 -0.37 47
IV.CSLB.HHZ. 2019-12-02T11:12:30.88 0.3 undecidable manual P 327 0.2338 115 -0.34 72
IV.PETRA.HHZ. 2019-12-02T11:12:29.35 0.1 undecidable manual P 318 0.1241 136 -0.32 98
IV.RESU.HHZ. 2019-12-02T11:12:29.88 0.1 positive manual P 234 0.1592 128 -0.24 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RESU.HHN. ML:0 0.00079005985 0.7616 AML other m 2019-12-02T11:12:35.05
IV.PETRA.HHN. ML:2.1 0.00093702255 0.3968 AML other m 2019-12-02T11:12:33.43
IV.PETRA.HHE. ML:1.9 0.00063399425 0.2368 AML other m 2019-12-02T11:12:35.22
IV.RESU.HHE. ML:1.9 0.00052847845 0.416 AML other m 2019-12-02T11:12:35.08
IV.CSLB.HHN. ML:1.3 9.0693195E-5 0.2368 AML other m 2019-12-02T11:12:37.51
IV.CSLB.HHE. ML:1.2 7.6663675E-5 0.384 AML other m 2019-12-02T11:12:37.17
IV.PLLN.EHE. ML:1.6 0.00019538455 0.4608 AML other m 2019-12-02T11:12:38.19
IV.PLLN.EHN. ML:1.8 0.0002733764 0.3392 AML other m 2019-12-02T11:12:38.22
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download