Earthquake with magnitude of Md 2.3 on date 28-06-1993 and time 13:30:11 (UTC) in region 1 km E Pollina (PA)

A magnitude Md 2.3 earthquake occured in region: 1 km E Pollina (PA), on

  • 28-06-1993 13:30:11 (UTC)
  • 28-06-1993 15:30:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.9930, 14.1560 at 8 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Pollina PA 1 2974 2974
Tusa ME 7 2925 5899
Castelbuono PA 9 8943 14842
San Mauro Castelverde PA 9 1701 16543
Pettineo ME 12 1350 17893
Cefalù PA 13 14393 32286
Motta d'Affermo ME 13 739 33025
Isnello PA 14 1589 34614
Geraci Siculo PA 15 1945 36559
Gratteri PA 16 963 37522
Reitano ME 17 806 38328
Santo Stefano di Camastra ME 17 4694 43022
Castel di Lucio ME 18 1294 44316
Lascari PA 19 3588 47904
Mistretta ME 19 4791 52695

Municipalities with at least 50000 inhabitants

An earthquake occurred to
56 Km N of Caltanissetta (63360 inhabitants)
57 Km E of Bagheria (55387 inhabitants)
71 Km E of Palermo (674435 inhabitants)
91 Km NE of Agrigento (59770 inhabitants)
98 Km W of Acireale (52622 inhabitants)
98 Km NW of Catania (314555 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 2.3 1993-06-28
13:30:11
37.993 14.156 7 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 188909
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1993-06-28 13:30:11 ± 0.366
Latitude 37.9930 ± 0.0174
Longitude 14.1560 ± 0.0132
Depth (km) 7 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 188909

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) 2250.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 216
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) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00008
Epicentral distance of station farthest from the epicenter (degree) 0.00089
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 188909
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:57:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.GIB.Z. 1993-06-28T13:30:16.45 10.0 undecidable manual SG 267 0.0999 -0.21 0.4
--.TU9.Z. 1993-06-28T13:30:15.80 10.0 undecidable manual SG 124 0.0444 0.54 0
--.CS9.Z. 1993-06-28T13:30:15.96 10.0 undecidable manual SG 230 0.0777 -0.23 0.4
--.GIB.Z. 1993-06-28T13:30:14.84 10.0 undecidable manual PG 267 0.0999 0.16 1.1
--.PL9.Z. 1993-06-28T13:30:14.50 10.0 undecidable manual SG 261 0.0111 -0.07 0.7
--.CS9.Z. 1993-06-28T13:30:14.48 10.0 positive manual PG 230 0.0777 0.07 3
--.TU9.Z. 1993-06-28T13:30:13.50 10.0 undecidable manual PG 124 0.0444 -0.36 0.5
--.PL9.Z. 1993-06-28T13:30:13.50 10.0 undecidable manual PG 261 0.0111 0.04 1.9
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