Earthquake with magnitude of Md 2.1 on date 15-10-1985 and time 23:25:23 (UTC) in region 5 km SW Castel di Lucio (ME)

A magnitude Md 2.1 earthquake occured in region: 5 km SW Castel di Lucio (ME), on

  • 15-10-1985 23:25:23 (UTC)
  • 16-10-1985 00:25:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.8590, 14.2620 at 82 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
Castel di Lucio ME 5 1294 1294
Gangi PA 8 6811 8105
San Mauro Castelverde PA 9 1701 9806
Geraci Siculo PA 9 1945 11751
Mistretta ME 12 4791 16542
Pettineo ME 12 1350 17892
Sperlinga EN 13 805 18697
Motta d'Affermo ME 14 739 19436
Tusa ME 14 2925 22361
Reitano ME 15 806 23167
Petralia Soprana PA 15 3360 26527
Petralia Sottana PA 16 2821 29348
Nicosia EN 17 13899 43247
Castelbuono PA 17 8943 52190
Pollina PA 18 2974 55164
Bompietro PA 19 1401 56565
Capizzi ME 19 3176 59741
Santo Stefano di Camastra ME 19 4694 64435
Blufi PA 20 1029 65464

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km NE of Caltanissetta (63360 inhabitants)
70 Km E of Bagheria (55387 inhabitants)
83 Km NW of Catania (314555 inhabitants)
84 Km E of Palermo (674435 inhabitants)
84 Km W of Acireale (52622 inhabitants)
85 Km NE of Agrigento (59770 inhabitants)
88 Km N of Gela (75827 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 2.1 1985-10-15
23:25:23
37.859 14.262 82 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 14719
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-10-15 23:25:23 ± 0.517
Latitude 37.8590 ± 0.0247
Longitude 14.2620 ± 0.0268
Depth (km) 82 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 14719

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) 3619.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 202
Number of associated phases, regardless of their use for origin computation 5
Number of defining phases 5
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00202
Epicentral distance of station farthest from the epicenter (degree) 0.00874
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 14719
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:17:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FA1.Z. 1985-10-15T23:25:51.80 10.0 undecidable manual S 218 0.7437 -0.32 0.3
--.GIB.Z. 1985-10-15T23:25:45.00 10.0 undecidable manual S 304 0.222 0.26 0.4
--.PA1.Z. 1985-10-15T23:25:42.50 10.0 undecidable manual P 147 0.9657 -0.03 1.8
--.FA1.Z. 1985-10-15T23:25:40.20 10.0 undecidable manual P 218 0.7437 0.2 1.3
--.GIB.Z. 1985-10-15T23:25:35.50 10.0 undecidable manual P 304 0.222 -0.24 1.2
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