Earthquake with magnitude of Md 2.4 on date 12-05-1993 and time 13:33:37 (UTC) in region 3 km NE Polizzi Generosa (PA)

A magnitude Md 2.4 earthquake occured in region: 3 km NE Polizzi Generosa (PA), on

  • 12-05-1993 13:33:37 (UTC)
  • 12-05-1993 15:33:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8280, 14.0300 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Polizzi Generosa PA 3 3407 3407
Castellana Sicula PA 5 3411 6818
Petralia Sottana PA 6 2821 9639
Petralia Soprana PA 8 3360 12999
Blufi PA 9 1029 14028
Bompietro PA 11 1401 15429
Scillato PA 11 613 16042
Geraci Siculo PA 12 1945 17987
Caltavuturo PA 12 4017 22004
Castelbuono PA 13 8943 30947
Isnello PA 13 1589 32536
Collesano PA 13 4054 36590
Sclafani Bagni PA 15 426 37016
Gangi PA 16 6811 43827
Resuttano CL 16 2038 45865
Gratteri PA 16 963 46828
Alimena PA 17 2032 48860
San Mauro Castelverde PA 17 1701 50561
Valledolmo PA 20 3594 54155

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km N of Caltanissetta (63360 inhabitants)
53 Km SE of Bagheria (55387 inhabitants)
67 Km SE of Palermo (674435 inhabitants)
70 Km NE of Agrigento (59770 inhabitants)
87 Km N of Gela (75827 inhabitants)
100 Km W 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
ML-VAX 2.0
1993-05-12
13:33:37
37.828 14.03 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 185029
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1993-05-12 13:33:37 ± 0.975
Latitude 37.8280 ± 0.0394
Longitude 14.0300 ± 0.0487
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 185029

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) 6120.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 280
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) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00097
Epicentral distance of station farthest from the epicenter (degree) 0.00866
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 3
Type of magnitude Md
Reference to an origin 185029
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:53:41

ML:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 185029
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
--.SA1.Z. 1993-05-12T13:33:58.95 10.0 undecidable manual PG 40 0.9657 1.94 0.2
--.MNO.Z. 1993-05-12T13:33:57.00 10.0 undecidable manual SG 78 0.5328 -0.05 0.6
--.MNO.Z. 1993-05-12T13:33:48.50 10.0 undecidable manual PG 78 0.5328 -0.48 1.4
--.PL9.Z. 1993-05-12T13:33:46.00 10.0 undecidable manual SG 28 0.1776 0.13 0.8
--.GIB.Z. 1993-05-12T13:33:44.92 10.0 undecidable manual SG 359 0.1554 -0.14 0.8
--.CS9.Z. 1993-05-12T13:33:43.14 10.0 undecidable manual SG 16 0.111 -0.42 0.7
--.GIB.Z. 1993-05-12T13:33:42.10 10.0 undecidable manual PG 359 0.1554 -0.05 2
--.PL9.Z. 1993-05-12T13:33:41.00 10.0 undecidable manual PG 28 0.1776 -1.54 0.6
--.CS9.Z. 1993-05-12T13:33:41.68 10.0 undecidable manual PG 16 0.111 0.48 1.8
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download