Earthquake with magnitude of M 3.4 on date 16-10-1988 and time 18:20:21 (Italy) in region Costa Greca Ionica (GRECIA)

A magnitude M 3.4 earthquake occured in region: Costa Greca Ionica (GRECIA), on

  • 16-10-1988 17:20:21 (UTC)
  • 16-10-1988 18:20:21 (UTC +01:00) Italian time
  • 16-10-1988 19:20:21 (UTC +02:00) local time in the region of the earthquake (Europe/Athens)

and geographic coordinates (lat, lon) 37.7400, 20.9110 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
M 3.4 1988-10-16
17:20:21
37.74 20.911 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 78929
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-10-16 17:20:21 ± 0.924
Latitude 37.7400 ± 0.0772
Longitude 20.9110 ± 0.0508
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 78929

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) 9681.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 235
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
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) 0.00453
Epicentral distance of station farthest from the epicenter (degree) 0.03845
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:3.4

Field Value
Value 3.4
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 78929
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
--.BRT.Z. 1988-10-16T17:21:26.50 10.0 undecidable manual PN 318 4.2624 0.14 1.3
--.SKO.Z. 1988-10-16T17:21:25.00 10.0 undecidable manual PN 5 4.2402 -1 0.6
--.VAY.Z. 1988-10-16T17:21:19.60 10.0 undecidable manual PN 18 3.7962 -0.25 1.4
--.LCI.Z. 1988-10-16T17:21:15.00 10.0 undecidable manual PN 320 3.3744 0.89 0.8
--.PLG.Z. 1988-10-16T17:21:14.00 10.0 undecidable manual PN 35 3.2745 1.21 0.5
--.OHR.Z. 1988-10-16T17:21:14.30 10.0 undecidable manual PN 358 3.3633 0.36 1.4
--.KZN.Z. 1988-10-16T17:21:04.50 10.0 undecidable manual PN 14 2.6418 0.44 1.4
--.ATH.Z. 1988-10-16T17:20:57.50 10.0 undecidable manual PN 82 2.22 -0.73 1
--.VLS.Z. 1988-10-16T17:20:31.00 10.0 undecidable manual PG 329 0.4995 -1.09 0.6
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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