Earthquake with magnitude of Md 2.5 on date 31-12-1994 and time 07:24:49 (Italy) in region 10 km W Vittoria (RG)

A magnitude Md 2.5 earthquake occured in region: 10 km W Vittoria (RG), on

  • 31-12-1994 06:24:49 (UTC)
  • 31-12-1994 07:24:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 36.9370, 14.4320 at 5 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
Vittoria RG 10 63339 63339
Acate RG 12 10954 74293
Santa Croce Camerina RG 15 10823 85116
Comiso RG 15 30156 115272

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km W of Vittoria (63339 inhabitants)
22 Km SE of Gela (75827 inhabitants)
27 Km W of Ragusa (73313 inhabitants)
31 Km W of Modica (54633 inhabitants)
70 Km SE of Caltanissetta (63360 inhabitants)
78 Km W of Siracusa (122291 inhabitants)
86 Km SW of Catania (314555 inhabitants)
86 Km SE of Agrigento (59770 inhabitants)
99 Km SW of Acireale (52622 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 2.5 1994-12-31
06:24:49
36.937 14.432 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 221819
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1994-12-31 06:24:49 ± 0.723
Latitude 36.9370 ± 0.0424
Longitude 14.4320 ± 0.0278
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 221819

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) 5322.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 269
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) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00380
Epicentral distance of station farthest from the epicenter (degree) 0.01538
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 221819
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:29:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SOI.Z. 1994-12-31T06:25:41.00 10.0 undecidable manual SN 48 1.7094 -1.11 0.2
--.MO9.Z. 1994-12-31T06:25:36.00 10.0 undecidable manual SN 43 1.4541 -0.04 0.8
--.ATN.Z. 1994-12-31T06:25:35.80 10.0 undecidable manual SN 33 1.4652 -0.42 0.6
--.PL9.Z. 1994-12-31T06:25:27.50 10.0 undecidable manual SN 348 1.0656 0.55 0.6
--.GIB.Z. 1994-12-31T06:25:26.50 10.0 undecidable manual SN 343 1.0989 -0.95 0.4
--.SOI.Z. 1994-12-31T06:25:19.00 10.0 undecidable manual PN 48 1.7094 -0.86 0.9
--.ATN.Z. 1994-12-31T06:25:16.00 10.0 undecidable manual PN 33 1.4652 -0.46 1.5
--.MO9.Z. 1994-12-31T06:25:16.00 10.0 undecidable manual PN 43 1.4541 -0.36 1.7
--.AU9.Z. 1994-12-31T06:25:14.00 10.0 undecidable manual SG 63 0.6993 -0.94 0.3
--.PL9.Z. 1994-12-31T06:25:11.50 10.0 undecidable manual PN 348 1.0656 0.39 1.9
--.GIB.Z. 1994-12-31T06:25:11.50 10.0 undecidable manual PN 343 1.0989 0.1 2.2
--.MNO.Z. 1994-12-31T06:25:11.00 10.0 undecidable manual PG 12 1.0101 1.03 0.9
--.PZI.Z. 1994-12-31T06:25:07.00 10.0 undecidable manual SG 74 0.4218 0.97 0.5
--.AU9.Z. 1994-12-31T06:25:04.00 10.0 undecidable manual PG 63 0.6993 -0.17 2.1
--.PZI.Z. 1994-12-31T06:25:00.50 10.0 undecidable manual PG 74 0.4218 1.47 0.4
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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