Earthquake with magnitude of ML 0.7 on date 17-11-2020 and time 21:15:04 (Italy) in region 4 km W Geraci Siculo (PA)

A magnitude ML 0.7 earthquake occured in region: 4 km W Geraci Siculo (PA), on

  • 17-11-2020 20:15:04 (UTC)
  • 17-11-2020 21:15:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.8680, 14.1130 at 14 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.

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 4 1945 1945
Petralia Sottana PA 7 2821 4766
Castelbuono PA 8 8943 13709
Petralia Soprana PA 8 3360 17069
San Mauro Castelverde PA 9 1701 18770
Gangi PA 11 6811 25581
Castellana Sicula PA 11 3411 28992
Polizzi Generosa PA 12 3407 32399
Isnello PA 13 1589 33988
Blufi PA 13 1029 35017
Bompietro PA 13 1401 36418
Pollina PA 15 2974 39392
Collesano PA 17 4054 43446
Gratteri PA 17 963 44409
Tusa ME 17 2925 47334
Castel di Lucio ME 18 1294 48628
Scillato PA 18 613 49241
Pettineo ME 19 1350 50591
Alimena PA 20 2032 52623

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km N of Caltanissetta (63360 inhabitants)
58 Km E of Bagheria (55387 inhabitants)
71 Km E of Palermo (674435 inhabitants)
78 Km NE of Agrigento (59770 inhabitants)
90 Km N of Gela (75827 inhabitants)
95 Km W of Catania (314555 inhabitants)
97 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 0.7 2020-11-17
20:15:04
37.8682 14.1133 14 2021-02-26
14:56:16
Bollettino Sismico Italiano INGV 86471151
Reviewed
Rev100
ML 0.6 2020-11-17
20:15:05
37.8795 14.1497 9 2020-11-17
20:20:51
Sala Sismica INGV-Roma 84806111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-17 20:15:04 ± 0.12
Latitude 37.8682 ± 0.0027
Longitude 14.1133 ± 0.0057
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86471151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 376
Semi-minor axis of confidence ellipse (meter) 374
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 125
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 167
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.07
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.12680
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 3
Type of magnitude ML
Reference to an origin 86471151
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-22 21:18:25

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 3
Type of magnitude ML
Reference to an origin 84806111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-17 20:20:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ECTS.HHZ. 2020-11-17T20:15:22.55 3.0 undecidable manual P 0 0
IV.PLLN.EHZ. 2020-11-17T20:15:11.45 0.6 undecidable manual S 11 14.0748 120 0.07 49
IV.CSLB.HHZ. 2020-11-17T20:15:10.30 0.6 undecidable manual S 328 9.0798 137 -0.05 49
IV.PETRA.HHZ. 2020-11-17T20:15:09.59 0.6 undecidable manual S 178 3.8961 160 -0.02 50
IV.CSLB.HHZ. 2020-11-17T20:15:08.11 0.1 undecidable manual P 328 9.0798 137 0.04 99
IV.PLLN.EHZ. 2020-11-17T20:15:08.61 0.1 undecidable manual P 11 14.0748 120 -0.06 97
IV.PETRA.HHZ. 2020-11-17T20:15:07.66 0.1 undecidable manual P 178 3.8961 160 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PETRA.HHN. ML:0.8 0.00008496100500000001 1.4112 AML other m 2020-11-17T20:15:09.09
IV.CSLB.HHN. ML:0.4 0.000028208875000000002 1.5008 AML other m 2020-11-17T20:15:12.80
IV.PETRA.HHE. ML:0.8 0.00008108255999999999 0.6496 AML other m 2020-11-17T20:15:13.71
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