Earthquake with magnitude of ML 2.5 on date 15-12-2007 and time 07:41:09 (Italy) in region 4 km E Valledolmo (PA)

A magnitude ML 2.5 earthquake occured in region: 4 km E Valledolmo (PA), on

  • 15-12-2007 06:41:09 (UTC)
  • 15-12-2007 07:41:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7400, 13.8710 at 56 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
Valledolmo PA 4 3594 3594
Vallelunga Pratameno CL 7 3461 7055
Sclafani Bagni PA 9 426 7481
Caltavuturo PA 9 4017 11498
Villalba CL 10 1633 13131
Scillato PA 14 613 13744
Polizzi Generosa PA 14 3407 17151
Alia PA 15 3623 20774
Montemaggiore Belsito PA 15 3365 24139
Resuttano CL 16 2038 26177
Aliminusa PA 16 1236 27413
Castellana Sicula PA 16 3411 30824
Marianopoli CL 16 1906 32730
Blufi PA 18 1029 33759
Cerda PA 19 5330 39089

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NW of Caltanissetta (63360 inhabitants)
49 Km SE of Bagheria (55387 inhabitants)
54 Km NE of Agrigento (59770 inhabitants)
61 Km SE of Palermo (674435 inhabitants)
82 Km NW of Gela (75827 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 2.2
ML 2.5
2007-12-15
06:41:09
37.74 13.871 56 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 665819
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2007-12-15 06:41:09 ± 1.12
Latitude 37.7400 ± 0.0477
Longitude 13.8710 ± 0.0466
Depth (km) 56 ± 11 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 665819

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 4670
Semi-minor axis of confidence ellipse (meter) 3857
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 341
Circular confidence region, given by single value of horizontal uncertainty (meter) 6700.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 198
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) 0.98
Epicentral distance of station closest to the epicenter (degree) 0.24641
Epicentral distance of station farthest from the epicenter (degree) 1.11696
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 665819
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 12:38:11

Md:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 665819
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 12:38:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSY.BHN. 2007-12-15T06:41:43.99 0.3 undecidable manual Sg 121 123.987 0.312 60
.HMDC.BHN. 2007-12-15T06:41:42.27 0.3 undecidable manual Sg 137 118.1928 -0.18 68
IV.SSY.BHN. 2007-12-15T06:41:28.61 0.1 undecidable manual Pg 121 123.987 -0.531 78
.HMDC.BHN. 2007-12-15T06:41:27.61 0.1 undecidable manual Pg 137 118.1928 -0.821 70
IV.CSLB.SHZ. 2007-12-15T06:41:25.35 0.3 undecidable manual Sg 37 27.3504 -0.445 73
IV.ECNV.BHE. 2007-12-15T06:41:24.28 0.3 undecidable manual Pg 102 75.5688 0.878 57
IV.GALF.HHN. 2007-12-15T06:41:23.44 0.3 undecidable manual Pg 93 61.0944 1.628 40
IV.FAVR.SHZ. 2007-12-15T06:41:21.54 0.1 undecidable manual Pg 199 55.4001 0.316 98
IV.CSLB.SHZ. 2007-12-15T06:41:18.64 0.1 undecidable manual Pg 37 27.3504 -0.174 100
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