Earthquake with magnitude of M 4.2 on date 09-08-1985 and time 08:08:44 (UTC) in region Southern Greece [Land: Greece]

A magnitude M 4.2 earthquake occured in region: Southern Greece [Land: Greece], on

  • 09-08-1985 08:08:44 (UTC)
  • 09-08-1985 10:08:44 (UTC +02:00) Italian time
  • 09-08-1985 11:08:44 (UTC +03:00) local time in the region of the earthquake (Europe/Athens)

and geographic coordinates (lat, lon) 37.18, 22.75 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
Rev 1000 M 4.2 1985-08-09
08:08:44
37.19 22.75 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 11399
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-08-09 08:08:44 ± 1.613
Latitude 37.19 ± 0.08
Longitude 22.75 ± 0.17
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 11399

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) 17104.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 319
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
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) 0.04298
Epicentral distance of station farthest from the epicenter (degree) 0.12199
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitude information

M:4.2

Field Value
Value 4.2
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 11399
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 Takeoff_angle Residual Weight
--.VAI.Z. 1985-08-09T08:11:56.50 10.0 undecidable manual PN? 311 0.122 -0.46 0.5
--.CH1.Z. 1985-08-09T08:11:13.20 10.0 undecidable manual PN 308 0.0937 -0.76 1
--.AS1.Z. 1985-08-09T08:11:05.00 10.0 undecidable manual PN? 307 0.0871 1.22 0.2
--.PO9.Z. 1985-08-09T08:10:56.50 10.0 undecidable manual PN 305 0.0831 -1.17 0.6
--.AQU.Z. 1985-08-09T08:10:52.00 10.0 undecidable manual PN 305 0.0794 -0.12 1.7
--.LCI.Z. 1985-08-09T08:10:49.00 10.0 undecidable manual SN 309 0.043 -0.07 0.7
--.SD1.Z. 1985-08-09T08:10:45.00 10.0 undecidable manual PN 303 0.0741 1.05 0.8
--.FA1.Z. 1985-08-09T08:10:31.00 10.0 undecidable manual PN 270 0.0649 0.99 0.9
--.BS1.Z. 1985-08-09T08:10:28.00 10.0 undecidable manual PN 299 0.064 -0.57 1.4
--.TR9.Z. 1985-08-09T08:10:27.10 10.0 undecidable manual PN 302 0.0628 0.37 1.7
--.GIB.Z. 1985-08-09T08:10:25.00 10.0 undecidable manual PN 276 0.0625 -1.28 0.5
--.SGO.Z. 1985-08-09T08:10:22.50 10.0 undecidable manual PN 299 0.0602 -0.24 1.8
--.ORI.Z. 1985-08-09T08:10:10.50 10.0 undecidable manual PN? 299 0.0512 1.53 0.1
--.CSI.Z. 1985-08-09T08:10:08.00 10.0 undecidable manual PN 296 0.051 -0.75 1.2
--.LCI.Z. 1985-08-09T08:09:57.00 10.0 undecidable manual PN 309 0.043 0.44 1.6
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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