Earthquake with magnitude of Md 2.8 on date 11-12-1996 and time 17:50:10 (Italy) in region 1 km NW Santa Margherita di Belice (AG)

A magnitude Md 2.8 earthquake occured in region: 1 km NW Santa Margherita di Belice (AG), on

  • 11-12-1996 16:50:10 (UTC)
  • 11-12-1996 17:50:10 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7, 13.021 at 10 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
Santa Margherita di Belice AG 1 6363 6363
Montevago AG 3 3006 9369
Salaparuta TP 7 1696 11065
Poggioreale TP 7 1494 12559
Sambuca di Sicilia AG 10 5877 18436
Partanna TP 12 10607 29043
Menfi AG 12 12592 41635
Contessa Entellina PA 15 1766 43401
Santa Ninfa TP 15 5043 48444
Gibellina TP 18 4115 52559
Giuliana PA 19 1952 54511
Roccamena PA 20 1505 56016

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Mazara del Vallo (51718 inhabitants)
53 Km E of Marsala (83194 inhabitants)
55 Km SW of Palermo (674435 inhabitants)
57 Km SE of Trapani (68759 inhabitants)
60 Km SW of Bagheria (55387 inhabitants)
66 Km NW of Agrigento (59770 inhabitants)
95 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
Md 2.8
ML-VAX 2.6
1996-12-11
16:50:10
37.7 13.021 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 258149
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1996-12-11 16:50:10 ± 0.278
Latitude 37.7000 ± 0.0254
Longitude 13.0210 ± 0.0194
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 258149

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 3304.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 168
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00429
Epicentral distance of station farthest from the epicenter (degree) 0.01619
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.8

Field Value
Value 2.8
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 258149
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:04:11

ML:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 258149
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.AU9.Z. 1996-12-11T16:50:41.17 10.0 undecidable manual PN 103 0.0162 -0.1 1.4
--.GIB.Z. 1996-12-11T16:50:40.40 10.0 undecidable manual SG 69 0.0075 0.51 0.7
--.CS9.Z. 1996-12-11T16:50:40.78 10.0 undecidable manual SG 73 0.0077 0.68 0.6
--.MNO.Z. 1996-12-11T16:50:36.00 10.0 undecidable manual PN 79 0.0121 1.03 0.7
--.FAI.Z. 1996-12-11T16:50:34.59 10.0 undecidable manual SG 129 0.006 0.69 0.6
--.LVI.Z. 1996-12-11T16:50:32.56 10.0 undecidable manual SG 297 0.0054 0.55 0.7
--.ERC.Z. 1996-12-11T16:50:29.23 10.0 undecidable manual SG 314 0.0043 1.42 0.2
--.GIB.Z. 1996-12-11T16:50:26.30 10.0 undecidable manual PG 69 0.0075 -0.96 1
--.CS9.Z. 1996-12-11T16:50:26.79 10.0 undecidable manual PG 73 0.0077 -0.8 1.2
--.FAI.Z. 1996-12-11T16:50:24.90 10.0 undecidable manual PG 129 0.006 0.08 2.2
--.LVI.Z. 1996-12-11T16:50:21.84 10.0 undecidable manual PG 297 0.0054 -1.07 0.8
--.ERC.Z. 1996-12-11T16:50:20.73 10.0 undecidable manual PG 314 0.0043 0.24 2.1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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