Earthquake with magnitude of Md 2.9 on date 20-08-1994 and time 11:28:59 (Italy) in region 3 km NW Campobello di Mazara (TP)

A magnitude Md 2.9 earthquake occured in region: 3 km NW Campobello di Mazara (TP), on

  • 20-08-1994 09:28:59 (UTC)
  • 20-08-1994 11:28:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.659, 12.735 at 23 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
Campobello di Mazara TP 3 11956 11956
Castelvetrano TP 6 31806 43762
Mazara del Vallo TP 13 51718 95480
Partanna TP 15 10607 106087
Santa Ninfa TP 18 5043 111130
Salemi TP 19 10794 121924

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km E of Mazara del Vallo (51718 inhabitants)
31 Km SE of Marsala (83194 inhabitants)
45 Km SE of Trapani (68759 inhabitants)
75 Km SW of Palermo (674435 inhabitants)
83 Km SW of Bagheria (55387 inhabitants)
84 Km W of Agrigento (59770 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 2.9
ML-VAX 2.2
1994-08-20
09:28:59
37.659 12.735 23 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 215169
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1994-08-20 09:28:59 ± 0.476
Latitude 37.6590 ± 0.0380
Longitude 12.7350 ± 0.0449
Depth (km) 23 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 215169

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) 5784.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 260
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.0004
Epicentral distance of station farthest from the epicenter (degree) 0.01983
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

Md:2.9

Field Value
Value 2.9
Uncertainty
Num. used stations 7
Type of magnitude Md
Reference to an origin 215169
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:22:57

ML:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 215169
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
--.MEU.Z. 1994-08-20T09:29:49.57 10.0 undecidable manual SN 107 0.0157 -0.1 0.5
--.PL9.Z. 1994-08-20T09:29:36.10 10.0 undecidable manual SN 72 0.0104 0.47 0.5
--.ATN.Z. 1994-08-20T09:29:35.14 10.0 undecidable manual PN 76 0.0198 0.2 1
--.USI.Z. 1994-08-20T09:29:35.94 10.0 undecidable manual SN 18 0.01 1.57 0
--.CS9.Z. 1994-08-20T09:29:33.95 10.0 undecidable manual SN 74 0.0098 -0.04 0.6
--.GIB.Z. 1994-08-20T09:29:33.95 10.0 undecidable manual SN 71 0.0096 0.43 0.5
--.AU9.Z. 1994-08-20T09:29:32.18 10.0 undecidable manual PN 100 0.0181 -0.09 1.1
--.PZI.Z. 1994-08-20T09:29:30.53 10.0 undecidable manual PN 108 0.0167 0.4 1
--.MEU.Z. 1994-08-20T09:29:29.45 10.0 undecidable manual PN 107 0.0157 0.77 0.5
--.MCT.Z. 1994-08-20T09:29:25.76 10.0 undecidable manual SG 93 0.0062 1.27 0.1
--.TU9.Z. 1994-08-20T09:29:20.72 10.0 undecidable manual PN 74 0.0108 -0.46 1.1
--.USI.Z. 1994-08-20T09:29:20.36 10.0 undecidable manual PN 18 0.01 0.52 1.1
--.PL9.Z. 1994-08-20T09:29:19.75 10.0 undecidable manual PN 72 0.0104 -0.82 0.6
--.CS9.Z. 1994-08-20T09:29:18.76 10.0 positive manual PN 74 0.0098 -0.86 1.1
--.GIB.Z. 1994-08-20T09:29:18.94 10.0 positive manual PN 71 0.0096 -0.41 2.5
--.FAI.Z. 1994-08-20T09:29:17.00 10.0 undecidable manual PN 117 0.0074 0.88 0.5
--.MCT.Z. 1994-08-20T09:29:13.91 10.0 negative manual PG 93 0.0062 -0.23 2.9
--.CVT.Z. 1994-08-20T09:29:08.00 10.0 undecidable manual SG 66 0.0004 0.72 0.3
--.CVT.Z. 1994-08-20T09:29:04.14 10.0 negative manual PG 66 0.0004 -0.06 3.1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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