Earthquake with magnitude of Md 2.4 on date 11-05-1993 and time 11:22:53 (UTC) in region 3 km SW Pollina (PA)

A magnitude Md 2.4 earthquake occured in region: 3 km SW Pollina (PA), on

  • 11-05-1993 11:22:53 (UTC)
  • 11-05-1993 13:22:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.9660, 14.1330 at 7 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 4 2974 2974
Castelbuono PA 5 8943 11917
San Mauro Castelverde PA 8 1701 13618
Tusa ME 10 2925 16543
Isnello PA 11 1589 18132
Geraci Siculo PA 12 1945 20077
Cefalù PA 13 14393 34470
Pettineo ME 14 1350 35820
Gratteri PA 14 963 36783
Motta d'Affermo ME 15 739 37522
Lascari PA 17 3588 41110
Collesano PA 18 4054 45164
Castel di Lucio ME 18 1294 46458
Petralia Sottana PA 18 2821 49279
Reitano ME 19 806 50085
Petralia Soprana PA 19 3360 53445
Gangi PA 20 6811 60256
Santo Stefano di Camastra ME 20 4694 64950

Municipalities with at least 50000 inhabitants

An earthquake occurred to
53 Km N of Caltanissetta (63360 inhabitants)
56 Km E of Bagheria (55387 inhabitants)
70 Km E of Palermo (674435 inhabitants)
87 Km NE of Agrigento (59770 inhabitants)
98 Km NW of Catania (314555 inhabitants)
99 Km W of Acireale (52622 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
ML-VAX 1.7
1993-05-11
11:22:53
37.966 14.133 7 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 184909
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1993-05-11 11:22:53 ± 0.238
Latitude 37.9660 ± 0.0263
Longitude 14.1330 ± 0.0262
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 184909

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) 3722.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00024
Epicentral distance of station farthest from the epicenter (degree) 0.01360
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 184909
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:53:34

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 184909
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SOI.Z. 1993-05-11T11:23:20.78 10.0 undecidable manual PN 85 1.5096 0.5 0.5
--.MNO.Z. 1993-05-11T11:23:10.23 10.0 undecidable manual SG 94 0.444 0.58 0.4
--.MNO.Z. 1993-05-11T11:23:02.70 10.0 undecidable manual PG 94 0.444 -0.54 1.2
--.GIB.Z. 1993-05-11T11:22:57.56 10.0 undecidable manual SG 285 0.0777 0.34 0.8
--.PL9.Z. 1993-05-11T11:22:56.75 10.0 undecidable manual SG 17 0.0222 0.98 0.2
--.CS9.Z. 1993-05-11T11:22:56.39 10.0 undecidable manual SG 239 0.0555 0.04 0.9
--.GIB.Z. 1993-05-11T11:22:55.16 10.0 undecidable manual PG 285 0.0777 -0.27 2.1
--.CS9.Z. 1993-05-11T11:22:54.83 10.0 undecidable manual PG 239 0.0555 -0.11 2.3
--.PL9.Z. 1993-05-11T11:22:53.73 10.0 undecidable manual PG 17 0.0222 -0.86 0.7
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