Earthquake with magnitude of ML 0.7 on date 25-03-2023 and time 09:50:20 (Italy) in region 3 km N Menfi (AG)

A magnitude ML 0.7 earthquake occured in region: 3 km N Menfi (AG), on

  • 25-03-2023 08:50:20 (UTC)
  • 25-03-2023 09:50:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.6300, 12.9630 at 2 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 3 12592 12592
Montevago AG 9 3006 15598
Santa Margherita di Belice AG 9 6363 21961
Partanna TP 12 10607 32568
Sambuca di Sicilia AG 13 5877 38445
Salaparuta TP 15 1696 40141
Poggioreale TP 16 1494 41635
Castelvetrano TP 16 31806 73441
Sciacca AG 17 40928 114369
Santa Ninfa TP 18 5043 119412
Campobello di Mazara TP 19 11956 131368

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Mazara del Vallo (51718 inhabitants)
50 Km E of Marsala (83194 inhabitants)
59 Km SE of Trapani (68759 inhabitants)
65 Km SW of Palermo (674435 inhabitants)
65 Km NW of Agrigento (59770 inhabitants)
70 Km SW of Bagheria (55387 inhabitants)
98 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 0.7 2023-03-25
08:50:20
37.6297 12.9632 2 2024-03-01
17:18:19
Bollettino Sismico Italiano INGV 124175061
Reviewed
Rev100
ML 0.7 2023-03-25
08:50:20
37.629 12.9605 3 2023-03-25
09:42:18
Sala Sismica INGV-Roma 115716871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-25 08:50:20 ± 0.15
Latitude 37.6297 ± 0.0072
Longitude 12.9632 ± 0.0102
Depth (km) 2 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 124175061

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 980
Semi-minor axis of confidence ellipse (meter) 710
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 234
Circular confidence region, given by single value of horizontal uncertainty (meter) 980.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 151
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.03417
Epicentral distance of station farthest from the epicenter (degree) 0.17537
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 124175061
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-12-21 14:02:39

ML:0.7

Field Value
Value 0.7
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 115716871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-25 09:42:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CRJA.HHZ. 2023-03-25T08:50:28.12 0.6 undecidable manual S 11 19.4694 97 0.85 40
IV.CAVT.HHZ. 2023-03-25T08:50:27.41 0.6 undecidable manual S 287 19.0698 97 0.28 49
IV.SCIAC.HHZ. 2023-03-25T08:50:26.93 0.6 undecidable manual S 136 17.4714 98 0.33 48
IV.CAVT.HHZ. 2023-03-25T08:50:24.16 0.3 undecidable manual P 287 19.0698 97 -0.16 75
IV.CRJA.HHZ. 2023-03-25T08:50:24.51 0.3 undecidable manual P 11 19.4694 97 0.12 76
IV.MFNL.HHZ. 2023-03-25T08:50:24.09 0.3 undecidable manual P 349 18.2706 98 -0.07 76
IV.SCIAC.HHZ. 2023-03-25T08:50:23.92 0.3 undecidable manual P 136 17.4714 98 -0.09 76
IV.MMGO.HNZ. 2023-03-25T08:50:21.62 0.6 undecidable manual S 18 3.7962 123 -0.42 49
IV.MMGO.HNZ. 2023-03-25T08:50:21.10 0.1 positive manual P 18 3.7962 123 -0.28 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SCIAC.HHE. ML:0.6 0.000037325085 0.096 AML other m 2023-03-25T08:50:28.75
IV.SCIAC.HHN. ML:0.8 0.000055144940000000004 1.7184 AML other m 2023-03-25T08:50:30.99
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