Earthquake with magnitude of Md 2.5 on date 25-02-1994 and time 21:03:03 (UTC) in region 4 km S Villalba (CL)

A magnitude Md 2.5 earthquake occured in region: 4 km S Villalba (CL), on

  • 25-02-1994 21:03:03 (UTC)
  • 25-02-1994 22:03:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.6230, 13.8390 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
Villalba CL 4 1633 1633
Vallelunga Pratameno CL 7 3461 5094
Marianopoli CL 7 1906 7000
Mussomeli CL 9 10780 17780
Acquaviva Platani CL 13 948 18728
Valledolmo PA 14 3594 22322
Sutera CL 14 1410 23732
Campofranco CL 17 3100 26832
San Giovanni Gemini AG 17 8056 34888
Santa Caterina Villarmosa CL 17 5388 40276
Bompensiere CL 17 556 40832
Cammarata AG 18 6355 47187
Resuttano CL 18 2038 49225
Montedoro CL 19 1631 50856
Serradifalco CL 19 6091 56947
Milena CL 19 3018 59965
Casteltermini AG 19 8267 68232

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NW of Caltanissetta (63360 inhabitants)
41 Km NE of Agrigento (59770 inhabitants)
58 Km SE of Bagheria (55387 inhabitants)
69 Km SE of Palermo (674435 inhabitants)
72 Km NW of Gela (75827 inhabitants)
97 Km NW of Vittoria (63339 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
ML-VAX 2.2
1994-02-25
21:03:03
37.623 13.839 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 205839
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1994-02-25 21:03:03 ± 0.315
Latitude 37.6230 ± 0.0200
Longitude 13.8390 ± 0.0325
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 205839

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) 3623.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00162
Epicentral distance of station farthest from the epicenter (degree) 0.01036
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:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 205839
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:13:50

ML:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 205839
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(km) Takeoff_angle Residual Weight
--.AU9.Z. 1994-02-25T21:03:42.10 10.0 undecidable manual SN 108 1.1544 -1.23 0.2
--.AU9.Z. 1994-02-25T21:03:26.00 10.0 undecidable manual PN 108 1.1544 -0.69 1.1
--.CVT.Z. 1994-02-25T21:03:20.62 10.0 undecidable manual PG 273 0.8214 -0.38 1.6
--.PL9.Z. 1994-02-25T21:03:20.11 10.0 undecidable manual SG 32 0.4329 -0.85 0.5
--.CS9.Z. 1994-02-25T21:03:20.90 10.0 undecidable manual SG 30 0.3552 2.02 0.1
--.GIB.Z. 1994-02-25T21:03:19.21 10.0 undecidable manual SG 21 0.3885 -0.06 0.9
--.FAI.Z. 1994-02-25T21:03:19.42 10.0 undecidable manual SG 200 0.3663 0.86 0.5
--.PL9.Z. 1994-02-25T21:03:14.71 10.0 undecidable manual PG 32 0.4329 0.94 1.4
--.FAI.Z. 1994-02-25T21:03:13.10 10.0 undecidable manual PG 200 0.3663 0.71 1.5
--.CS9.Z. 1994-02-25T21:03:12.13 10.0 undecidable manual PG 30 0.3552 0.02 2.2
--.GIB.Z. 1994-02-25T21:03:12.82 10.0 undecidable manual PG 21 0.3885 0.02 2.2
--.MCT.Z. 1994-02-25T21:03:12.63 10.0 undecidable manual SG 268 0.1776 1.45 0.2
--.MCT.Z. 1994-02-25T21:03:06.55 10.0 undecidable manual PG 268 0.1776 -1.58 0.6
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