Earthquake with magnitude of ML 2.0 on date 11-07-2011 and time 01:36:06 (Italy) in region 8 km SE Niscemi (CL)

A magnitude ML 2.0 earthquake occured in region: 8 km SE Niscemi (CL), on

  • 10-07-2011 23:36:06 (UTC)
  • 11-07-2011 01:36:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.1030, 14.4620 at 8 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
Niscemi CL 8 27558 27558
Acate RG 9 10954 38512
Mazzarrone CT 9 4078 42590
Caltagirone CT 16 38686 81276
Vittoria RG 18 63339 144615
Gela CL 19 75827 220442
San Michele di Ganzaria CT 20 3245 223687

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NW of Vittoria (63339 inhabitants)
19 Km E of Gela (75827 inhabitants)
31 Km NW of Ragusa (73313 inhabitants)
38 Km NW of Modica (54633 inhabitants)
56 Km SE of Caltanissetta (63360 inhabitants)
71 Km SW of Catania (314555 inhabitants)
74 Km W of Siracusa (122291 inhabitants)
81 Km E of Agrigento (59770 inhabitants)
84 Km SW of Acireale (52622 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 2.1
ML 2.0
2011-07-10
23:36:06
37.103 14.462 8 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1255369
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-07-10 23:36:06 ± 0.31
Latitude 37.1030 ± 0.0180
Longitude 14.4620 ± 0.0158
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1255369

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2063
Semi-minor axis of confidence ellipse (meter) 1145
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 20
Circular confidence region, given by single value of horizontal uncertainty (meter) 2441.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 207
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.57
Epicentral distance of station closest to the epicenter (degree) 0.14299
Epicentral distance of station farthest from the epicenter (degree) 0.62773
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1255369
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 00:44:05

Md:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1255369
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 00:44:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.AGST.EHE. 2011-07-10T23:36:28.94 0.6 undecidable manual Sg 76 69.6747 0.727 38
IV.HCRL.HHZ. 2011-07-10T23:36:24.50 0.6 undecidable manual Sg 68 54.2013 0.43 44
IV.HLNI.HHZ. 2011-07-10T23:36:21.24 0.6 undecidable manual Sg 53 45.3213 -0.447 46
IV.HMDC.HHE. 2011-07-10T23:36:19.28 0.6 undecidable manual Sg 119 32.6451 1.06 36
IV.AGST.EHE. 2011-07-10T23:36:18.79 0.3 undecidable manual Pg 76 69.6747 -0.262 69
IV.ECNV.HHN. 2011-07-10T23:36:17.80 0.3 undecidable manual Pg 22 58.8966 0.411 65
IV.HCRL.HHZ. 2011-07-10T23:36:16.33 0.1 undecidable manual Pg 68 54.2013 -0.333 93
IV.SSY.HHZ. 2011-07-10T23:36:16.79 0.3 undecidable manual Pg 83 54.4011 0.095 71
IV.HVZN.HHZ. 2011-07-10T23:36:15.54 0.6 undecidable manual Sg 70 23.8539 0.218 52
IV.HLNI.HHZ. 2011-07-10T23:36:14.72 0.1 undecidable manual Pg 53 45.3213 -0.567 90
IV.HMDC.HHE. 2011-07-10T23:36:13.28 0.3 undecidable manual Pg 119 32.6451 -0.003 76
IV.RAFF.HHZ. 2011-07-10T23:36:13.34 0.3 undecidable manual Sg 326 15.873 0.574 70
IV.HVZN.HHZ. 2011-07-10T23:36:11.39 0.1 undecidable manual Pg 70 23.8539 -0.219 96
IV.RAFF.HHZ. 2011-07-10T23:36:09.89 0.1 undecidable manual Pg 326 15.873 -0.246 100
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
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