Earthquake with magnitude of Md 2.5 on date 26-11-2001 and time 13:45:06 (Italy) in region 2 km NW Castellana Sicula (PA)

A magnitude Md 2.5 earthquake occured in region: 2 km NW Castellana Sicula (PA), on

  • 26-11-2001 12:45:06 (UTC)
  • 26-11-2001 13:45:06 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7930, 14.0240 at 3 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
Castellana Sicula PA 2 3411 3411
Polizzi Generosa PA 3 3407 6818
Petralia Sottana PA 6 2821 9639
Blufi PA 6 1029 10668
Petralia Soprana PA 8 3360 14028
Bompietro PA 8 1401 15429
Caltavuturo PA 12 4017 19446
Resuttano CL 12 2038 21484
Scillato PA 13 613 22097
Alimena PA 14 2032 24129
Geraci Siculo PA 14 1945 26074
Sclafani Bagni PA 15 426 26500
Gangi PA 16 6811 33311
Collesano PA 16 4054 37365
Castelbuono PA 17 8943 46308
Isnello PA 17 1589 47897
Valledolmo PA 18 3594 51491
Gratteri PA 20 963 52454

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km N of Caltanissetta (63360 inhabitants)
55 Km SE of Bagheria (55387 inhabitants)
66 Km NE of Agrigento (59770 inhabitants)
68 Km SE of Palermo (674435 inhabitants)
83 Km N of Gela (75827 inhabitants)
99 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 2.5 2001-11-26
12:45:06
37.793 14.024 3 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 431759
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2001-11-26 12:45:06 ± 0.04
Latitude 37.7930 ± 0.0023
Longitude 14.0240 ± 0.0029
Depth (km) 3 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 431759

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) 357.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 167
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0
Epicentral distance of station closest to the epicenter (degree) 0.00130
Epicentral distance of station farthest from the epicenter (degree) 0.00607
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:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 431759
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 23:47:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CLTB.Z. 2001-11-26T12:45:21.43 10.0 undecidable manual PG 251 0.6771 0.02 0.9
--.MNO.Z. 2001-11-26T12:45:19.10 10.0 negative manual PG 74 0.5439 0 2
--.MCT.Z. 2001-11-26T12:45:15.23 10.0 undecidable manual PG 242 0.3663 -0.01 1.3
--.GIB.Z. 2001-11-26T12:45:14.57 10.0 undecidable manual SG 0 0.1887 0 0.5
--.CSLB.Z. 2001-11-26T12:45:12.68 10.0 undecidable manual SG 10 0.1443 0 0.5
--.GIB.Z. 2001-11-26T12:45:11.25 10.0 undecidable manual PG 0 0.1887 -0.1 0.8
--.CSLB.Z. 2001-11-26T12:45:10.35 10.0 undecidable manual PG 10 0.1443 0.09 0.9
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