Earthquake with magnitude of M 3.5 on date 04-08-1985 and time 17:29:42 (Italy) in region Greece

A magnitude M 3.5 earthquake occured in region: Greece, on

  • 04-08-1985 15:29:42 (UTC)
  • 04-08-1985 17:29:42 (UTC +02:00) Italian time
  • 04-08-1985 18:29:42 (UTC +03:00) local time in the region of the earthquake (Europe/Athens)

and geographic coordinates (lat, lon) 38.88, 21.21 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 3.5 1985-08-04
15:29:42
38.88 21.21 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 11299
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-08-04 15:29:42 ± 0.499
Latitude 38.88 ± 0.05
Longitude 21.21 ± 0.04
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 11299

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) 6305.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 154
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.01336
Epicentral distance of station farthest from the epicenter (degree) 0.05674
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

M:3.5

Field Value
Value 3.5
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 11299
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
--.SD1.Z. 1985-08-04T15:31:16.50 10.0 undecidable manual PN 299 0.0567 0.98 0.5
--.ATH.Z. 1985-08-04T15:30:46.50 10.0 undecidable manual SN 114 0.0194 1.72 0.1
--.DR2.Z. 1985-08-04T15:30:45.80 10.0 undecidable manual PN 268 0.0371 0.34 1.4
--.BAI.Z. 1985-08-04T15:30:42.50 10.0 undecidable manual PN 305 0.0359 -1.23 0.5
--.PE1.Z. 1985-08-04T15:30:37.00 10.0 undecidable manual PN 305 0.0313 0.25 1.6
--.SKO.Z. 1985-08-04T15:30:31.50 10.0 undecidable manual PN 3 0.0278 0.11 1.7
--.LCI.Z. 1985-08-04T15:30:26.50 10.0 undecidable manual PN? 302 0.0251 -0.75 0.4
--.VAY.Z. 1985-08-04T15:30:25.00 10.0 undecidable manual PN 23 0.0238 -0.3 1.6
--.ATH.Z. 1985-08-04T15:30:17.50 10.0 undecidable manual PN 114 0.0194 -1.11 0.6
--.KZN.Z. 1985-08-04T15:30:09.70 10.0 undecidable manual PN 17 0.0134 0.35 1.6
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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