Earthquake with magnitude of M 3.5 on date 07-11-1991 and time 22:10:59 (Italy) in region Costa Greca Ionica (GRECIA)

A magnitude M 3.5 earthquake occured in region: Costa Greca Ionica (GRECIA), on

  • 07-11-1991 21:10:59 (UTC)
  • 07-11-1991 22:10:59 (UTC +01:00) Italian time
  • 07-11-1991 23:10:59 (UTC +02:00) local time in the region of the earthquake (Europe/Athens)

and geographic coordinates (lat, lon) 38.4320, 20.4780 at 29 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 3.5 1991-11-07
21:10:59
38.432 20.478 29 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 152959
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-11-07 21:10:59 ± 0.305
Latitude 38.4320 ± 0.0516
Longitude 20.4780 ± 0.0508
Depth (km) 29 ± 7 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 152959

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) 7247.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
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) 0.00235
Epicentral distance of station farthest from the epicenter (degree) 0.06848
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitude information

M:3.5

Field Value
Value 3.5
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 152959
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
--.ARV.Z. 1991-11-07T21:12:47.60 10.0 undecidable manual PN 314 7.6035 -1.25 0.4
--.OHR.Z. 1991-11-07T21:12:11.69 10.0 undecidable manual SN 5 2.6751 1.08 0.5
--.FG3.Z. 1991-11-07T21:12:09.13 10.0 undecidable manual PN 314 4.7508 -0.09 1.5
--.SGO.Z. 1991-11-07T21:12:06.70 10.0 undecidable manual PN 299 4.5066 0.88 0.9
--.MEU.Z. 1991-11-07T21:12:06.17 10.0 undecidable manual PN 255 4.6398 -1.49 0.3
--.PZI.Z. 1991-11-07T21:12:05.63 10.0 undecidable manual PN 254 4.5732 -1.07 0.7
--.CDT.Z. 1991-11-07T21:12:00.00 10.0 undecidable manual PN 310 4.1736 -1.14 0.6
--.ATN.Z. 1991-11-07T21:11:59.00 10.0 undecidable manual PN 267 3.9405 1.07 0.7
--.MO9.Z. 1991-11-07T21:11:55.98 10.0 undecidable manual PN 265 3.774 0.28 1.6
--.TDS.Z. 1991-11-07T21:11:53.50 10.0 undecidable manual PN! 292 3.4299 2.48 0
--.SOI.Z. 1991-11-07T21:11:53.00 10.0 undecidable manual PN 265 3.4743 1.3 0.5
--.BRT.Z. 1991-11-07T21:11:53.50 10.0 undecidable manual PN 314 3.5298 1.13 0.7
--.SKO.Z. 1991-11-07T21:11:51.00 10.0 undecidable manual PN! 11 3.6075 -2.41 0
--.PE1.Z. 1991-11-07T21:11:49.00 10.0 undecidable manual PN 316 3.33 -0.65 1.3
--.GRI.Z. 1991-11-07T21:11:48.90 10.0 undecidable manual PN 278 3.1857 0.48 1.5
--.VAY.Z. 1991-11-07T21:11:48.60 10.0 undecidable manual PN 28 3.2967 -0.55 1.5
--.LCI.Z. 1991-11-07T21:11:41.00 10.0 undecidable manual PN 316 2.6307 1 0.9
--.OHR.Z. 1991-11-07T21:11:40.70 10.0 undecidable manual PN 5 2.6751 -0.02 3.6
--.KEK.Z. 1991-11-07T21:11:39.00 10.0 undecidable manual SN 337 1.3764 -0.59 0.6
--.KZN.Z. 1991-11-07T21:11:33.40 10.0 undecidable manual PN 27 2.1201 0.45 1.6
--.KEK.Z. 1991-11-07T21:11:22.00 10.0 undecidable manual PN 337 1.3764 -0.8 1.2
--.VLS.Z. 1991-11-07T21:11:13.00 10.0 undecidable manual SG 160 0.2553 0.29 0.7
--.VLS.Z. 1991-11-07T21:11:07.20 10.0 undecidable manual PG 160 0.2553 -0.09 1.8
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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