Earthquake with magnitude of Md 2.9 on date 25-12-1990 and time 12:30:15 (UTC) in region Costa Occidentale Peloponneso (GRECIA)

A magnitude Md 2.9 earthquake occured in region: Costa Occidentale Peloponneso (GRECIA), on

  • 25-12-1990 12:30:15 (UTC)
  • 25-12-1990 13:30:15 (UTC +01:00) Italian time
  • 25-12-1990 14:30:15 (UTC +02:00) local time in the region of the earthquake (Europe/Athens)

and geographic coordinates (lat, lon) 37.3040, 20.7680 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
Md 2.9
ML-VAX 4.0
1990-12-25
12:30:15
37.304 20.768 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 132999
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-12-25 12:30:15 ± 1.344
Latitude 37.3040 ± 0.0631
Longitude 20.7680 ± 0.1119
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 132999

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) 12127.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 302
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
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) 0.03295
Epicentral distance of station farthest from the epicenter (degree) 0.05610
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

Md:2.9

Field Value
Value 2.9
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 132999
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:03:56

ML:4.0

Field Value
Value 4.0
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 132999
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNO.Z. 1990-12-25T12:32:22.59 10.0 undecidable manual SN 277 4.8285 1.64 0.2
--.MEU.Z. 1990-12-25T12:32:16.33 10.0 undecidable manual SN 267 4.7175 -1.83 0.1
--.BRT.Z. 1990-12-25T12:32:12.81 10.0 undecidable manual SN 321 4.5288 -0.77 0.4
--.ATN.Z. 1990-12-25T12:32:07.00 10.0 undecidable manual SN 281 4.2624 -0.43 0.6
--.FG2.Z. 1990-12-25T12:31:46.65 10.0 undecidable manual PN 316 6.2271 -0.19 1.4
--.FAI.Z. 1990-12-25T12:31:38.00 10.0 undecidable manual PN 270 5.6388 -0.73 1.1
--.FG4.Z. 1990-12-25T12:31:37.76 10.0 undecidable manual PN 313 5.5722 -0.09 1.5
--.SGO.Z. 1990-12-25T12:31:36.20 10.0 undecidable manual PN 307 5.3391 1.55 0.5
--.GIB.Z. 1990-12-25T12:31:36.60 10.0 undecidable manual PN 277 5.3613 0.98 1
--.MNO.Z. 1990-12-25T12:31:28.34 10.0 negative manual PN 277 4.8285 0.52 2.9
--.MEU.Z. 1990-12-25T12:31:25.10 10.0 undecidable manual PN 267 4.7175 -1.19 0.8
--.PZI.Z. 1990-12-25T12:31:23.93 10.0 undecidable manual PN 267 4.6398 -1.06 0.9
--.BRT.Z. 1990-12-25T12:31:22.58 10.0 undecidable manual PN 321 4.5288 -0.98 0.9
--.ATN.Z. 1990-12-25T12:31:20.39 10.0 undecidable manual PN 281 4.2624 0.39 1.6
--.SOI.Z. 1990-12-25T12:31:15.00 10.0 undecidable manual PN 281 3.7962 1.49 0.5
--.LCI.Z. 1990-12-25T12:31:11.53 10.0 undecidable manual PN 324 3.6519 -0.05 1.7
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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