Earthquake with magnitude of M 2.7 on date 28-05-1991 and time 15:33:52 (Italy) in region Confine Grecia Albania (GRECIA, ALBANIA)

A magnitude M 2.7 earthquake occured in region: Confine Grecia Albania (GRECIA, ALBANIA), on

  • 28-05-1991 13:33:52 (UTC)
  • 28-05-1991 15:33:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.4400, 20.9610 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 2.7 1991-05-28
13:33:52
40.44 20.961 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 142029
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-05-28 13:33:52 ± 0.461
Latitude 40.4400 ± 0.0246
Longitude 20.9610 ± 0.0548
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 142029

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) 5380.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 170
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.8
Epicentral distance of station closest to the epicenter (degree) 0.00356
Epicentral distance of station farthest from the epicenter (degree) 0.01408
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

M:2.7

Field Value
Value 2.7
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 142029
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:30:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SKO.Z. 1991-05-28T13:34:41.60 10.0 undecidable manual SN 12 1.5651 1.2 0.3
--.SKO.Z. 1991-05-28T13:34:20.50 10.0 undecidable manual PN 12 1.5651 0.33 1.2
--.VAY.Z. 1991-05-28T13:34:19.20 10.0 undecidable manual PN 53 1.4874 0.02 1.4
--.TIR.Z. 1991-05-28T13:34:17.30 10.0 undecidable manual PN 317 1.221 1.85 0.3
--.OHR.Z. 1991-05-28T13:34:16.30 10.0 undecidable manual SG 349 0.6771 -0.04 1
--.LSK.Z. 1991-05-28T13:34:07.70 10.0 undecidable manual SG 223 0.3996 0.42 0.9
--.OHR.Z. 1991-05-28T13:34:05.20 10.0 undecidable manual PG 349 0.6771 -1.07 1.9
--.LSK.Z. 1991-05-28T13:34:00.90 10.0 undecidable manual PG 223 0.3996 -0.96 1.1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download