Earthquake with magnitude of M 4.0 on date 12-05-1985 and time 02:43:13 (Italy) in region Costa Greca Ionica (GRECIA)

A magnitude M 4.0 earthquake occured in region: Costa Greca Ionica (GRECIA), on

  • 12-05-1985 00:43:13 (UTC)
  • 12-05-1985 02:43:13 (UTC +02:00) Italian time
  • 12-05-1985 03:43:13 (UTC +03:00) local time in the region of the earthquake (Europe/Athens)

and geographic coordinates (lat, lon) 38.4850, 20.9930 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 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
M 4.0 1985-05-12
00:43:13
38.485 20.993 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 6119
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-05-12 00:43:13 ± 0.58
Latitude 38.4850 ± 0.0365
Longitude 20.9930 ± 0.0597
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 6119

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) 6598.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 203
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
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) 0.00397
Epicentral distance of station farthest from the epicenter (degree) 0.05326
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

M:4.0

Field Value
Value 4.0
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 6119
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:54:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SGO.Z. 1985-05-12T00:45:19.80 10.0 undecidable manual SN 296 4.8396 0.48 0.4
--.DUI.Z. 1985-05-12T00:44:41.50 10.0 undecidable manual PN 304 5.9163 0.62 0.8
--.BS1.Z. 1985-05-12T00:44:31.50 10.0 undecidable manual PN 297 5.2614 -0.48 1.3
--.SGO.Z. 1985-05-12T00:44:24.00 10.0 undecidable manual PN 296 4.8396 -2.18 0.2
--.KBN.Z. 1985-05-12T00:44:15.80 10.0 undecidable manual SN 355 2.1423 0.77 0.5
--.VAY.Z. 1985-05-12T00:44:01.20 10.0 undecidable manual PN 22 3.0747 -0.73 1.2
--.LCI.Z. 1985-05-12T00:44:00.00 10.0 undecidable manual PN 310 2.886 0.67 1.2
--.OHR.Z. 1985-05-12T00:43:54.90 10.0 undecidable manual PN 356 2.6196 -0.82 1.3
--.VLO.Z. 1985-05-12T00:43:50.20 10.0 undecidable manual PN 329 2.2866 -0.93 1.3
--.KBN.Z. 1985-05-12T00:43:49.80 10.0 undecidable manual PN 355 2.1423 0.74 1.3
--.KZN.Z. 1985-05-12T00:43:47.00 10.0 undecidable manual PN 17 1.9092 1.05 1
--.VLS.Z. 1985-05-12T00:43:23.00 10.0 undecidable manual PG 225 0.444 0.14 1.6
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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