Earthquake with magnitude of Md 3.1 on date 13-06-1985 and time 23:08:30 (Italy) in region Costa Catanese (Catania)

A magnitude Md 3.1 earthquake occured in region: Costa Catanese (Catania), on

  • 13-06-1985 21:08:30 (UTC)
  • 13-06-1985 23:08:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.79, 15.47 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
Letojanni ME 18 2861 2861
Taormina ME 18 10960 13821
Sant'Alessio Siculo ME 18 1554 15375
Giardini-Naxos ME 18 9415 24790
Forza d'Agrò ME 18 911 25701
Castelmola ME 19 1088 26789
Santa Teresa di Riva ME 19 9377 36166
Gallodoro ME 20 367 36533

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km NE of Acireale (52622 inhabitants)
38 Km SW of Reggio di Calabria (183035 inhabitants)
45 Km S of Messina (238439 inhabitants)
47 Km NE of Catania (314555 inhabitants)
83 Km N of Siracusa (122291 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
Rev 1000 Md 3.1 1985-06-13
21:08:30
37.79 15.47 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 8469
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-06-13 21:08:30 ± 1.259
Latitude 37.79 ± 0.03
Longitude 15.47 ± 0.09
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 8469

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) 8882.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 290
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) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00785
Epicentral distance of station farthest from the epicenter (degree) 0.01368
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:3.1

Field Value
Value 3.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 8469
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:12:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.GIB.Z. 1985-06-13T21:09:08.50 10.0 undecidable manual SN 279 0.0104 -0.23 1.1
--.PA1.Z. 1985-06-13T21:09:01.00 10.0 undecidable manual SG 209 0.0079 0.07 0.8
--.FA1.Z. 1985-06-13T21:08:59.00 10.0 undecidable manual PN 250 0.0137 1.33 0.4
--.GIB.Z. 1985-06-13T21:08:52.00 10.0 undecidable manual PN 279 0.0104 -0.68 1.3
--.PA1.Z. 1985-06-13T21:08:47.50 10.0 undecidable manual PG 209 0.0079 -0.67 1.4
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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