Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of M 3.4 on date 23-01-1989 and time 23:11:29 (Italy) in region Costa Occidentale Peloponneso (GRECIA)

A magnitude M 3.4 earthquake occured in region: Costa Occidentale Peloponneso (GRECIA), on

  • 23-01-1989 22:11:29 (UTC)
  • 23-01-1989 23:11:29 (UTC +01:00) Italian time
  • 24-01-1989 00:11:29 (UTC +02:00) local time in the region of the earthquake (Europe/Athens)

and geographic coordinates (lat, lon) 37.3740, 21.2190 at 1 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.

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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 3.4 1989-01-23
22:11:29		 37.374 21.219 1 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 85909
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-01-23 22:11:29 ± 1.405
Latitude 37.3740 ± 0.0339
Longitude 21.2190 ± 0.0295
Depth (km) 1 ± 9 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 85909

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) 4582.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 142
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
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) 0.00850
Epicentral distance of station farthest from the epicenter (degree) 0.04679
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitude information

M:3.4

Field Value
Value 3.4
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 85909
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
--.MNO.Z. 1989-01-23T22:13:47.56 10.0 undecidable manual SN 277 5.1837 1.38 0.2
--.MEU.Z. 1989-01-23T22:13:41.41 10.0 undecidable manual SN 268 5.0727 -2.34 0
--.ATN.Z. 1989-01-23T22:13:33.22 10.0 undecidable manual SN 281 4.6065 0.75 0.5
--.SC9.Z. 1989-01-23T22:13:29.50 10.0 undecidable manual SN 282 4.4178 0.88 0.4
--.MGR.Z. 1989-01-23T22:12:49.00 10.0 undecidable manual PN 303 5.1948 0.22 1.4
--.MNO.Z. 1989-01-23T22:12:48.73 10.0 undecidable manual PN 277 5.1837 0.16 1.4
--.BCI.Z. 1989-01-23T22:12:46.80 10.0 undecidable manual PN 349 5.0616 -0.07 1.5
--.MEU.Z. 1989-01-23T22:12:45.86 10.0 undecidable manual PN 268 5.0727 -1.3 0.6
--.PZI.Z. 1989-01-23T22:12:45.59 10.0 undecidable manual PN 267 4.995 -0.37 1.4
--.MMN.Z. 1989-01-23T22:12:44.30 10.0 undecidable manual PN 302 4.7841 1.18 0.8
--.SKO.Z. 1989-01-23T22:12:39.00 10.0 undecidable manual PN 1 4.5954 -1.44 0.6
--.ATN.Z. 1989-01-23T22:12:38.95 10.0 undecidable manual PN 281 4.6065 -1.7 0.4
--.SC9.Z. 1989-01-23T22:12:38.44 10.0 undecidable manual PN 282 4.4178 0.27 1.5
--.GA2.Z. 1989-01-23T22:12:37.24 10.0 undecidable manual PN 281 4.3179 0.48 1.4
--.SOI.Z. 1989-01-23T22:12:34.00 10.0 undecidable manual PN 280 4.1292 -0.16 1.6
--.NPS.Z. 1989-01-23T22:12:33.90 10.0 undecidable manual PN 119 4.1181 0.04 1.6
--.VAY.Z. 1989-01-23T22:12:32.40 10.0 undecidable manual PN 13 4.0737 -0.94 1.1
--.LCI.Z. 1989-01-23T22:12:30.00 10.0 undecidable manual PN 321 3.8073 0.24 1.6
--.OHR.Z. 1989-01-23T22:12:28.90 10.0 undecidable manual PN 354 3.7407 0.12 1.6
--.KBN.Z. 1989-01-23T22:12:24.00 10.0 undecidable manual PN 353 3.2634 1.86 0.3
--.VAM.Z. 1989-01-23T22:12:20.40 10.0 undecidable manual PN 125 2.997 1.96 0.2
--.KZN.Z. 1989-01-23T22:12:18.40 10.0 undecidable manual PN 7 2.9526 0.42 1.5
--.NEO.Z. 1989-01-23T22:12:11.10 10.0 undecidable manual PN 38 2.4753 -0.39 1.5
--.ATH.Z. 1989-01-23T22:12:04.20 10.0 undecidable manual PN 71 2.0535 -1.45 0.6
--.VLS.Z. 1989-01-23T22:11:50.10 10.0 undecidable manual PG 328 0.9435 0.66 1.3
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download