Earthquake with magnitude of ML 0.9 on date 30-08-2020 and time 20:14:48 (Italy) in region 5 km NE Menfi (AG)

A magnitude ML 0.9 earthquake occured in region: 5 km NE Menfi (AG), on

  • 30-08-2020 18:14:48 (UTC)
  • 30-08-2020 20:14:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.6360, 13.0070 at 8 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 5 12592 12592
Santa Margherita di Belice AG 7 6363 18955
Montevago AG 8 3006 21961
Sambuca di Sicilia AG 9 5877 27838
Salaparuta TP 14 1696 29534
Partanna TP 14 10607 40141
Poggioreale TP 14 1494 41635
Sciacca AG 16 40928 82563
Contessa Entellina PA 19 1766 84329
Santa Ninfa TP 19 5043 89372
Castelvetrano TP 20 31806 121178
Caltabellotta AG 20 3681 124859

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Mazara del Vallo (51718 inhabitants)
54 Km E of Marsala (83194 inhabitants)
61 Km SE of Trapani (68759 inhabitants)
62 Km SW of Palermo (674435 inhabitants)
63 Km NW of Agrigento (59770 inhabitants)
66 Km SW of Bagheria (55387 inhabitants)
94 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 0.9 2020-08-30
18:14:48
37.6358 13.0067 9 2020-11-19
12:37:07
Bollettino Sismico Italiano INGV 84739311
Reviewed
Rev100
ML 0.9 2020-08-30
18:14:49
37.6442 13.0183 3 2020-08-30
18:26:43
Sala Sismica INGV-Roma 82475981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-30 18:14:48 ± 0.15
Latitude 37.6358 ± 0.0081
Longitude 13.0067 ± 0.0102
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84739311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1022
Semi-minor axis of confidence ellipse (meter) 528
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 220
Circular confidence region, given by single value of horizontal uncertainty (meter) 1020.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 134
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.03507
Epicentral distance of station farthest from the epicenter (degree) 0.36872
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:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 84739311
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-15 02:24:15

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 82475981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-30 18:26:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CORL.HHZ. 2020-08-30T18:15:02.20 0.6 undecidable manual S 42 38.7279 50 0.03 48
IV.MBFT.HHZ. 2020-08-30T18:15:00.65 0.3 undecidable manual S 352 34.743 50 -0.46 66
IV.CAVT.HHZ. 2020-08-30T18:14:57.50 0.3 undecidable manual S 282 22.5552 111 0.33 70
IV.MARS.EHE. 2020-08-30T18:14:57.36 0.3 undecidable manual P 289 40.9257 50 0.5 65
IV.CORL.HHZ. 2020-08-30T18:14:56.22 0.3 undecidable manual P 42 38.7279 50 -0.31 68
IV.CRJA.HHZ. 2020-08-30T18:14:56.32 0.3 undecidable manual S 359 18.3705 115 0.49 68
MN.CLTB.HHZ. 2020-08-30T18:14:56.60 0.6 undecidable manual S 109 19.4694 114 0.42 46
IV.MBFT.HHZ. 2020-08-30T18:14:55.43 0.6 undecidable manual P 352 34.743 50 -0.48 44
IV.SCIAC.HHZ. 2020-08-30T18:14:54.80 0.3 undecidable manual S 148 15.6732 118 -0.19 73
IV.CRJA.HHZ. 2020-08-30T18:14:53.22 0.1 undecidable manual P 359 18.3705 115 0.35 93
MN.CLTB.HHZ. 2020-08-30T18:14:53.45 0.3 undecidable manual P 109 19.4694 114 0.39 69
IV.CAVT.HHZ. 2020-08-30T18:14:53.81 0.6 undecidable manual P 282 22.5552 111 0.18 48
IV.SCIAC.HHZ. 2020-08-30T18:14:52.34 0.1 undecidable manual P 148 15.6732 118 -0.03 100
IV.MMGO.HHZ. 2020-08-30T18:14:51.54 0.3 undecidable manual S 318 3.8961 155 -0.51 69
IV.MMGO.HHZ. 2020-08-30T18:14:50.07 0.1 undecidable manual P 318 3.8961 155 -0.61 89
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SCIAC.HHE. ML:0.8 0.000060202745 0.1024 AML other m 2020-08-30T18:14:55.16
IV.SCIAC.HHN. ML:1.0 0.000094082305 0.1152 AML other m 2020-08-30T18:14:56.28
IV.CRJA.HHE. ML:1.1 0.00011208833499999999 0.1792 AML other m 2020-08-30T18:14:57.20
IV.CRJA.HHN. ML:1.0 0.00008716475999999999 0.1664 AML other m 2020-08-30T18:14:57.89
IV.CAVT.HHN. ML:1.1 0.00007789520499999999 0.0768 AML other m 2020-08-30T18:14:58.88
IV.CAVT.HHE. ML:1.0 0.00007275572999999999 0.128 AML other m 2020-08-30T18:14:59.25
IV.MBFT.HHE. ML:0.4 0.000010126736 0.128 AML other m 2020-08-30T18:15:01.29
IV.MBFT.HHN. ML:0.4 0.00000789765 0.0768 AML other m 2020-08-30T18:15:01.57
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