Earthquake with magnitude of M 4.0 on date 17-01-1990 and time 11:23:31 (UTC) in region Costa Occidentale Peloponneso (GRECIA)

A magnitude M 4.0 earthquake occured in region: Costa Occidentale Peloponneso (GRECIA), on

  • 17-01-1990 11:23:31 (UTC)
  • 17-01-1990 12:23:31 (UTC +01:00) Italian time
  • 17-01-1990 13:23:31 (UTC +02:00) local time in the region of the earthquake (Europe/Athens)

and geographic coordinates (lat, lon) 37.35, 21.22 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 4.0 1990-01-17
11:23:31
37.35 21.22 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 108109
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-01-17 11:23:31 ± 0.795
Latitude 37.35 ± 0.04
Longitude 21.22 ± 0.07
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 108109

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) 7303.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 306
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.03448
Epicentral distance of station farthest from the epicenter (degree) 0.05415
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitude information

M:4

Field Value
Value 4
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 108109
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
--.MGR.Z. 1990-01-17T11:25:46.24 10.0 undecidable manual SN 302 0.0469 0.25 0.6
--.PZI.Z. 1990-01-17T11:25:40.42 10.0 undecidable manual SN 266 0.045 -0.47 0.5
--.MEU.Z. 1990-01-17T11:25:40.61 10.0 undecidable manual SN 267 0.0458 -2.37 0
--.TDS.Z. 1990-01-17T11:25:29.16 10.0 undecidable manual SN 300 0.0401 1.2 0.2
--.MO9.Z. 1990-01-17T11:25:27.92 10.0 undecidable manual SN 278 0.0397 0.92 0.3
--.DR2.Z. 1990-01-17T11:25:24.80 10.0 undecidable manual SN 286 0.0392 -0.79 0.4
--.LCI.Z. 1990-01-17T11:25:13.35 10.0 undecidable manual SN 319 0.0345 0.22 0.6
--.BSS.Z. 1990-01-17T11:25:01.70 10.0 undecidable manual PN 304 0.0542 0.88 0.7
--.SGO.Z. 1990-01-17T11:24:55.42 10.0 undecidable manual PN 304 0.0503 1.06 0.5
--.MS1.Z. 1990-01-17T11:24:55.00 10.0 undecidable manual PN! 316 0.0535 -4.21 0
--.MNO.Z. 1990-01-17T11:24:49.96 10.0 negative manual PN 276 0.0467 1.13 1
--.MGR.Z. 1990-01-17T11:24:48.50 10.0 undecidable manual PN 302 0.0469 -0.62 1.1
--.PZI.Z. 1990-01-17T11:24:46.20 10.0 negative manual PN 266 0.045 0.02 3.2
--.MEU.Z. 1990-01-17T11:24:46.97 10.0 negative manual PN 267 0.0458 -0.41 2.7
--.CSI.Z. 1990-01-17T11:24:44.20 10.0 undecidable manual PN! 301 0.041 4.23 0
--.MMN.Z. 1990-01-17T11:24:44.20 10.0 undecidable manual PN 301 0.0432 0.74 1
--.BRT.Z. 1990-01-17T11:24:41.57 10.0 undecidable manual PN 317 0.0425 -0.79 0.9
--.PE1.Z. 1990-01-17T11:24:38.50 10.0 undecidable manual PN 318 0.0408 -1.24 0.4
--.MO9.Z. 1990-01-17T11:24:38.15 10.0 undecidable manual PN 278 0.0397 -0.02 1.6
--.TDS.Z. 1990-01-17T11:24:38.38 10.0 undecidable manual PN 300 0.0401 -0.33 1.5
--.CZI.Z. 1990-01-17T11:24:37.40 10.0 undecidable manual PN 294 0.0396 -0.54 1.2
--.GMB.Z. 1990-01-17T11:24:37.20 10.0 undecidable manual PN 280 0.039 0.17 1.6
--.GA2.Z. 1990-01-17T11:24:37.80 10.0 undecidable manual PN 280 0.039 0.77 1
--.DR2.Z. 1990-01-17T11:24:36.90 10.0 negative manual PN 286 0.0392 -0.45 1.4
--.ROI.Z. 1990-01-17T11:24:36.80 10.0 undecidable manual PN 300 0.0383 0.8 0.9
--.SOI.Z. 1990-01-17T11:24:34.81 10.0 undecidable manual PN 279 0.0373 0.38 1.4
--.FE2.Z. 1990-01-17T11:24:33.70 10.0 undecidable manual PN 279 0.037 -0.31 1.5
--.GRI.Z. 1990-01-17T11:24:33.00 10.0 undecidable manual PN 290 0.0364 -0.11 1.6
--.PA2.Z. 1990-01-17T11:24:30.60 10.0 undecidable manual PN 286 0.0353 -0.79 0.9
--.LCI.Z. 1990-01-17T11:24:29.75 10.0 undecidable manual PN 319 0.0345 -0.4 1.4
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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