Earthquake with magnitude of ML 1.8 on date 02-12-2019 and time 12:12:25 (Italy) in region 6 km SW Gangi (PA)

A magnitude ML 1.8 earthquake occured in region: 6 km SW 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) 37.75, 14.18 at 22 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Gangi PA 6 6811 6811
Bompietro PA 7 1401 8212
Petralia Soprana PA 8 3360 11572
Alimena PA 8 2032 13604
Blufi PA 9 1029 14633
Petralia Sottana PA 10 2821 17454
Castellana Sicula PA 12 3411 20865
Geraci Siculo PA 12 1945 22810
Resuttano CL 15 2038 24848
Sperlinga EN 16 805 25653
Polizzi Generosa PA 17 3407 29060
Villarosa EN 18 4937 33997
San Mauro Castelverde PA 18 1701 35698
Castel di Lucio ME 19 1294 36992
Nicosia EN 20 13899 50891
Calascibetta EN 20 4528 55419

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NE of Caltanissetta (63360 inhabitants)
69 Km SE of Bagheria (55387 inhabitants)
72 Km NE of Agrigento (59770 inhabitants)
76 Km N of Gela (75827 inhabitants)
82 Km SE of Palermo (674435 inhabitants)
85 Km W of Catania (314555 inhabitants)
89 Km W of Acireale (52622 inhabitants)
95 Km NW of Vittoria (63339 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 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 ± 0.34
Latitude 37.75 ± 0.01
Longitude 14.18 ± 0.03
Depth (km) 22 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 74246141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2253
Semi-minor axis of confidence ellipse (meter) 979
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) 2250
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 125
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.09623
Epicentral distance of station farthest from the epicenter (degree) 0.43257
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 6
Magnitude 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
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ALJA.HHE. 2019-12-02T11:12:43.31 3.0 undecidable manual S 0.3345 5.05 0
IV.PLLN.EHZ. 2019-12-02T11:12:35.99 0.6 undecidable manual S 354 0.2428 123 0.12 48
IV.RESU.HHZ. 2019-12-02T11:12:34.16 0.6 undecidable manual S 222 0.1403 140 0.58 45
IV.CSLB.HHZ. 2019-12-02T11:12:34.79 0.6 undecidable manual S 333 0.2086 128 -0.25 48
IV.ALJA.HHE. 2019-12-02T11:12:34.85 3.0 undecidable manual P 0.3345 2.09 0
IV.MSFR.HHZ. 2019-12-02T11:12:34.63 0.1 undecidable manual P 49 0.4326 107 0.29 89
IV.GALF.HHZ. 2019-12-02T11:12:32.05 0.3 undecidable manual P 97 0.3103 115 -0.34 69
IV.PETRA.HHZ. 2019-12-02T11:12:32.94 0.3 undecidable manual S 329 0.0962 151 0.11 75
IV.PLLN.EHZ. 2019-12-02T11:12:31.56 0.3 negative manual P 354 0.2428 123 0.18 72
IV.CSLB.HHZ. 2019-12-02T11:12:30.89 0.1 undecidable manual P 333 0.2086 128 -0.01 100
IV.PETRA.HHZ. 2019-12-02T11:12:29.35 0.1 undecidable manual P 329 0.0962 151 -0.28 97
IV.RESU.HHZ. 2019-12-02T11:12:29.88 0.1 positive manual P 222 0.1403 140 -0.18 97
IV.GIB.HHE. 2019-12-02T11:12:28.44 3.0 undecidable manual P 0.2671 -3.29 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RESU.HHE. ML:0 0.00052847845 0.416 AML other m 2019-12-02T11:12:35.08
IV.RESU.HHN. ML:0 0.00079005985 0.7616 AML other m 2019-12-02T11:12:35.05
IV.PETRA.HHE. ML:2 0.00063399425 0.2368 AML other m 2019-12-02T11:12:35.22
IV.PETRA.HHN. ML:2.1 0.00093702255 0.3968 AML other m 2019-12-02T11:12:33.43
IV.CSLB.HHE. ML:1.2 7.6663675E-5 0.384 AML other m 2019-12-02T11:12:37.17
IV.CSLB.HHN. ML:1.3 9.0693195E-5 0.2368 AML other m 2019-12-02T11:12:37.51
IV.PLLN.EHE. ML:1.7 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
IV.GALF.HNE. ML:1.5 0.00011212659 1.0496 AML other m 2019-12-02T11:12:39.00
IV.GALF.HNN. ML:1.6 0.00012879332 0.8128 AML other m 2019-12-02T11:12:37.99
IV.GALF.HHN. ML:1.8 0.0002172854 0.4992 AML other m 2019-12-02T11:12:45.28
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