Earthquake with magnitude of Md 1.7 on date 12-02-2011 and time 13:15:47 (UTC) in region 2 km W Partanna (TP)

A magnitude Md 1.7 earthquake occured in region: 2 km W Partanna (TP), on

  • 12-02-2011 13:15:47 (UTC)
  • 12-02-2011 14:15:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7190, 12.8670 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
Partanna TP 2 10607 10607
Santa Ninfa TP 6 5043 15650
Castelvetrano TP 8 31806 47456
Gibellina TP 10 4115 51571
Montevago AG 11 3006 54577
Salemi TP 12 10794 65371
Salaparuta TP 13 1696 67067
Campobello di Mazara TP 14 11956 79023
Santa Margherita di Belice AG 14 6363 85386
Poggioreale TP 16 1494 86880
Menfi AG 16 12592 99472
Vita TP 17 2056 101528

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km E of Mazara del Vallo (51718 inhabitants)
39 Km E of Marsala (83194 inhabitants)
46 Km SE of Trapani (68759 inhabitants)
62 Km SW of Palermo (674435 inhabitants)
69 Km SW of Bagheria (55387 inhabitants)
78 Km NW of Agrigento (59770 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 1.7 2011-02-12
13:15:47
37.719 12.867 6 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1171789
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-02-12 13:15:47 ± 0.58
Latitude 37.7190 ± 0.0135
Longitude 12.8670 ± 0.0148
Depth (km) 6 ± 5 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1171789

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1476
Semi-minor axis of confidence ellipse (meter) 247
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 204
Circular confidence region, given by single value of horizontal uncertainty (meter) 1984.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.93
Epicentral distance of station closest to the epicenter (degree) 0.08364
Epicentral distance of station farthest from the epicenter (degree) 0.31027
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:1.7

Field Value
Value 1.7
Uncertainty 0.4
Num. used stations
Type of magnitude Md
Reference to an origin 1171789
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 22:50:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.CLTB.HHN. 2011-02-12T13:15:59.54 0.3 undecidable manual Sg 117 34.4433 -0.343 91
IV.MTGR.SHZ. 2011-02-12T13:15:56.17 0.6 undecidable manual Sg 334 21.4674 0.648 57
MN.CLTB.HHN. 2011-02-12T13:15:55.24 0.3 undecidable manual Pg 117 34.4433 0.488 88
IV.MTGR.SHZ. 2011-02-12T13:15:52.70 0.3 undecidable manual Pg 334 21.4674 0.466 91
IV.MFNL.SHZ. 2011-02-12T13:15:52.09 0.3 undecidable manual Sg 31 9.2796 0.437 93
IV.MMGO.SHZ. 2011-02-12T13:15:52.95 0.3 undecidable manual Sg 124 11.4774 0.635 87
IV.CRJA.SHZ. 2011-02-12T13:15:51.58 0.3 undecidable manual Sg 53 15.0738 -1.848 45
IV.CAVT.SHZ. 2011-02-12T13:15:51.67 0.3 undecidable manual Sg 245 10.7781 -0.423 93
IV.MFNL.SHZ. 2011-02-12T13:15:50.10 0.3 undecidable manual Pg 31 9.2796 0.103 100
IV.MMGO.SHZ. 2011-02-12T13:15:50.84 0.3 undecidable manual Pg 124 11.4774 0.46 92
IV.CRJA.SHZ. 2011-02-12T13:15:49.85 0.3 undecidable manual Pg 53 15.0738 -1.171 68
IV.CAVT.SHZ. 2011-02-12T13:15:49.86 0.3 undecidable manual Pg 245 10.7781 -0.394 94
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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