Earthquake with magnitude of Md 2.2 on date 07-09-2011 and time 11:45:59 (Italy) in region 5 km NW Montevago (AG)

A magnitude Md 2.2 earthquake occured in region: 5 km NW Montevago (AG), on

  • 07-09-2011 09:45:59 (UTC)
  • 07-09-2011 11:45:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7340, 12.9530 at 11 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
Montevago AG 5 3006 3006
Salaparuta TP 6 1696 4702
Partanna TP 6 10607 15309
Santa Margherita di Belice AG 8 6363 21672
Santa Ninfa TP 8 5043 26715
Poggioreale TP 8 1494 28209
Gibellina TP 11 4115 32324
Menfi AG 15 12592 44916
Castelvetrano TP 15 31806 76722
Salemi TP 16 10794 87516
Sambuca di Sicilia AG 17 5877 93393
Vita TP 19 2056 95449

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Mazara del Vallo (51718 inhabitants)
46 Km E of Marsala (83194 inhabitants)
50 Km SE of Trapani (68759 inhabitants)
56 Km SW of Palermo (674435 inhabitants)
62 Km SW of Bagheria (55387 inhabitants)
73 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 2.2 2011-09-07
09:45:59
37.734 12.953 11 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1282449
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-09-07 09:45:59 ± 0.16
Latitude 37.7340 ± 0.0090
Longitude 12.9530 ± 0.0136
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1282449

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1262
Semi-minor axis of confidence ellipse (meter) 978
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 239
Circular confidence region, given by single value of horizontal uncertainty (meter) 1562.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 151
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.32016
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1282449
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:21:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ALJA.HHN. 2011-09-07T09:46:14.40 10.0 undecidable manual Sg 0 0 0
IV.CORL.HHZ. 2011-09-07T09:46:11.57 0.3 undecidable manual Sg 60 35.5422 0.244 71
MN.CLTB.HHE. 2011-09-07T09:46:08.55 0.6 undecidable manual Sg 127 28.8489 -1.009 36
IV.MTGR.SHZ. 2011-09-07T09:46:07.98 0.6 undecidable manual Sg 316 24.4533 -0.401 45
IV.ALJA.HHN. 2011-09-07T09:46:06.67 10.0 undecidable manual Pg 0 0 0
IV.CORL.HHZ. 2011-09-07T09:46:06.23 0.1 undecidable manual Pg 60 35.5422 -0.052 98
MN.CLTB.HHE. 2011-09-07T09:46:05.51 0.3 undecidable manual Pg 127 28.8489 0.25 72
IV.MTGR.SHZ. 2011-09-07T09:46:04.73 0.3 undecidable manual Pg 316 24.4533 0.149 75
IV.MMGO.SHZ. 2011-09-07T09:46:04.12 0.6 undecidable manual Sg 165 8.2806 -0.12 51
IV.CRJA.SHZ. 2011-09-07T09:46:04.29 0.6 undecidable manual Sg 31 8.6802 -0.041 51
IV.MMGO.SHZ. 2011-09-07T09:46:02.51 0.1 undecidable manual Pg 165 8.2806 0.321 97
IV.CRJA.SHZ. 2011-09-07T09:46:02.03 0.1 undecidable manual Pg 31 8.6802 -0.211 100
IV.CAVT.SHZ. 2011-09-07T09:46:02.05 10.0 undecidable manual Pg 0 0 0
IV.MNO.SHN. 2011-09-07T09:45:57.65 10.0 undecidable manual Pg 0 0 0
IV.IACL.HHZ. 2011-09-07T09:45:45.70 10.0 undecidable manual Pg 0 0 0
IV.ESLN.HHN. 2011-09-07T09:45:35.02 10.0 undecidable manual Pg 0 0 0
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
Waveforms Seismic signals in miniseed + resp format Download