Earthquake with magnitude of Md 2.5 on date 06-08-1992 and time 08:25:11 (Italy) in region 6 km W Butera (CL)

A magnitude Md 2.5 earthquake occured in region: 6 km W Butera (CL), on

  • 06-08-1992 06:25:11 (UTC)
  • 06-08-1992 08:25:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.1950, 14.1150 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
Butera CL 6 4754 4754
Riesi CL 10 11586 16340
Ravanusa AG 15 11766 28106
Mazzarino CL 15 12145 40251
Gela CL 19 75827 116078
Licata AG 19 37797 153875
Campobello di Licata AG 19 10092 163967
Sommatino CL 19 7038 171005

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NW of Gela (75827 inhabitants)
34 Km S of Caltanissetta (63360 inhabitants)
46 Km NW of Vittoria (63339 inhabitants)
49 Km E of Agrigento (59770 inhabitants)
62 Km NW of Ragusa (73313 inhabitants)
69 Km NW of Modica (54633 inhabitants)
93 Km W of Catania (314555 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 2.0
1992-08-06
06:25:11
37.195 14.115 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 171089
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-08-06 06:25:11 ± 0.584
Latitude 37.1950 ± 0.0426
Longitude 14.1150 ± 0.0284
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 171089

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) 5363.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 196
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) 0.8
Epicentral distance of station closest to the epicenter (degree) 0.00324
Epicentral distance of station farthest from the epicenter (degree) 0.00793
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 171089
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:39:57

ML:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 171089
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. 1992-08-06T06:25:43.00 10.0 undecidable manual SG 85 0.8769 1.66 0.2
--.GIB.Z. 1992-08-06T06:25:39.36 10.0 undecidable manual SG 354 0.7881 0.75 0.6
--.MCT.Z. 1992-08-06T06:25:34.26 10.0 undecidable manual SG! 316 0.5772 2.49 0
--.AU9.Z. 1992-08-06T06:25:28.50 10.0 undecidable manual PG 85 0.8769 -0.06 1.8
--.MNO.Z. 1992-08-06T06:25:27.00 10.0 undecidable manual PG 31 0.8658 -1.32 0.9
--.GIB.Z. 1992-08-06T06:25:26.36 10.0 undecidable manual PG 354 0.7881 -0.63 1.6
--.MCT.Z. 1992-08-06T06:25:24.87 10.0 undecidable manual PG 316 0.5772 1.83 0.5
--.FAI.Z. 1992-08-06T06:25:24.36 10.0 undecidable manual SG 281 0.3552 -0.3 0.8
--.FAI.Z. 1992-08-06T06:25:18.26 10.0 undecidable manual PG 281 0.3552 -0.67 1.7
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