Earthquake with magnitude of ML 1.0 on date 08-11-2020 and time 12:57:39 (Italy) in region 2 km NE Menfi (AG)

A magnitude ML 1.0 earthquake occured in region: 2 km NE Menfi (AG), on

  • 08-11-2020 11:57:39 (UTC)
  • 08-11-2020 12:57:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.619, 12.979 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
Menfi AG 2 12592 12592
Santa Margherita di Belice AG 9 6363 18955
Montevago AG 10 3006 21961
Sambuca di Sicilia AG 12 5877 27838
Partanna TP 14 10607 38445
Sciacca AG 15 40928 79373
Salaparuta TP 16 1696 81069
Poggioreale TP 17 1494 82563
Castelvetrano TP 18 31806 114369
Santa Ninfa TP 19 5043 119412

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Mazara del Vallo (51718 inhabitants)
52 Km E of Marsala (83194 inhabitants)
60 Km SE of Trapani (68759 inhabitants)
64 Km NW of Agrigento (59770 inhabitants)
65 Km SW of Palermo (674435 inhabitants)
69 Km SW of Bagheria (55387 inhabitants)
97 Km W of Caltanissetta (63360 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 1.0 2020-11-08
11:57:39
37.619 12.9788 14 2021-02-26
14:56:16
Bollettino Sismico Italiano INGV 86459181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-08 11:57:39 ± 0.15
Latitude 37.6190 ± 0.0036
Longitude 12.9788 ± 0.0091
Depth (km) 14 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86459181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 789
Semi-minor axis of confidence ellipse (meter) 392
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 75
Circular confidence region, given by single value of horizontal uncertainty (meter) 790
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 153
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.14119
Epicentral distance of station farthest from the epicenter (degree) 0.20325
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 86459181
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-22 15:13:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
X3.T1582.EHZ. 2020-11-08T11:57:48.40 0.6 undecidable manual S 309 0.2032 105 0.29 48
IV.MFNL.HHZ. 2020-11-08T11:57:47.24 0.6 undecidable manual S 345 0.1772 109 -0.14 49
IV.CAVT.HHZ. 2020-11-08T11:57:47.74 0.6 undecidable manual S 289 0.1862 108 0.11 50
IV.CRJA.HHZ. 2020-11-08T11:57:47.64 0.6 undecidable manual S 6 0.1835 108 0.09 50
IV.SCIAC.HHZ. 2020-11-08T11:57:46.38 0.3 undecidable manual S 136 0.1412 118 -0.01 75
IV.CRJA.HHZ. 2020-11-08T11:57:44.28 0.6 undecidable manual P 6 0.1835 108 0.13 49
IV.CAVT.HHZ. 2020-11-08T11:57:44.14 0.3 undecidable manual P 289 0.1862 108 -0.06 76
X3.T1582.EHZ. 2020-11-08T11:57:44.38 0.3 undecidable manual P 309 0.2032 105 -0.1 75
IV.MFNL.HHZ. 2020-11-08T11:57:43.92 0.6 undecidable manual P 345 0.1772 109 -0.13 50
IV.SCIAC.HHZ. 2020-11-08T11:57:43.50 0.1 undecidable manual P 136 0.1412 118 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SCIAC.HHN. ML:1 7.405E-5 0.58 AML other m 2020-11-08T11:57:46.77
IV.SCIAC.HHE. ML:0.9 6.3E-5 1.14 AML other m 2020-11-08T11:57:47.59
IV.MFNL.HHE. ML:1 7.355E-5 0.78 AML other m 2020-11-08T11:57:47.37
IV.MFNL.HHN. ML:0.9 5.735E-5 1.2 AML other m 2020-11-08T11:57:48.28
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