Earthquake with magnitude of Md 2.4 on date 18-05-1993 and time 16:52:06 (Italy) in region 1 km SE Pollina (PA)

A magnitude Md 2.4 earthquake occured in region: 1 km SE Pollina (PA), on

  • 18-05-1993 14:52:06 (UTC)
  • 18-05-1993 16:52:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.99, 14.16 at 6 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
Motta d'Affermo ME 13 739 18632
Cefal├╣ PA 13 14393 33025
Isnello PA 14 1589 34614
Geraci Siculo PA 14 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 2.4 1993-05-18
14:52:06
37.99 14.16 6 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 185399
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1993-05-18 14:52:06 ± 0.21
Latitude 37.99 ± 0.03
Longitude 14.16 ± 0.02
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 185399

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) 3152.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 162
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) 0.1
Epicentral distance of station closest to the epicenter (degree) 8.0E-5
Epicentral distance of station farthest from the epicenter (degree) 0.00931
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 185399
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:54:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ATN.Z. 1993-05-18T14:52:27.35 10.0 undecidable manual PG 80 0.0093 -0.37 0.3
--.MNO.Z. 1993-05-18T14:52:24.28 10.0 undecidable manual SG 97 0.0038 1 0
--.MNO.Z. 1993-05-18T14:52:16.20 10.0 undecidable manual PG 97 0.0038 -0.16 1
--.GIB.Z. 1993-05-18T14:52:11.67 10.0 undecidable manual SG 269 0.0009 0.29 0.4
--.CS9.Z. 1993-05-18T14:52:10.50 10.0 undecidable manual SG 231 0.0007 -0.32 0.3
--.CS9.Z. 1993-05-18T14:52:09.17 10.0 undecidable manual PG 231 0.0007 0.01 1.6
--.GIB.Z. 1993-05-18T14:52:09.58 10.0 undecidable manual PG 269 0.0009 0.1 1.5
--.PL9.Z. 1993-05-18T14:52:09.17 10.0 undecidable manual SG 277 0.0001 0.11 0.6
--.PL9.Z. 1993-05-18T14:52:08.14 10.0 positive manual PG 277 0.0001 -0.01 3.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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