Earthquake with magnitude of ML 1.7 on date 14-07-2011 and time 11:15:27 (Italy) in region 4 km NW Troina (EN)

A magnitude ML 1.7 earthquake occured in region: 4 km NW Troina (EN), on

  • 14-07-2011 09:15:27 (UTC)
  • 14-07-2011 11:15:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8170, 14.5760 at 46 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
Troina EN 4 9373 9373
Cerami EN 6 2006 11379
Capizzi ME 9 3176 14555
San Teodoro ME 12 1403 15958
Gagliano Castelferrato EN 12 3593 19551
CesarĂ² ME 12 2439 21990
Nicosia EN 17 13899 35889
Agira EN 18 8345 44234
Regalbuto EN 19 7277 51511

Municipalities with at least 50000 inhabitants

An earthquake occurred to
57 Km W of Acireale (52622 inhabitants)
57 Km NW of Catania (314555 inhabitants)
58 Km NE of Caltanissetta (63360 inhabitants)
88 Km NE of Gela (75827 inhabitants)
96 Km W of Messina (238439 inhabitants)
97 Km N of Vittoria (63339 inhabitants)
98 Km E of Bagheria (55387 inhabitants)
99 Km W of Reggio di Calabria (183035 inhabitants)
100 Km N of Ragusa (73313 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 1.9
ML 1.7
2011-07-14
09:15:27
37.817 14.576 46 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1259009
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-07-14 09:15:27 ± 0.51
Latitude 37.8170 ± 0.0486
Longitude 14.5760 ± 0.0740
Depth (km) 46 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1259009

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 8254
Semi-minor axis of confidence ellipse (meter) 314
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 129
Circular confidence region, given by single value of horizontal uncertainty (meter) 8450.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 215
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.32555
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1259009
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 00:49:04

Md:1.9

Field Value
Value 1.9
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1259009
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 00:49:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CRJA.SHZ. 2011-07-14T09:15:48.97 10.0 undecidable manual Pg 0 0 0
IV.MUCR.HHZ. 2011-07-14T09:15:43.14 0.6 undecidable manual Sg 46 36.1416 -0.267 47
IV.MNO.SHE. 2011-07-14T09:15:40.92 0.6 undecidable manual Sg 39 16.3725 0.121 50
IV.GALF.HHZ. 2011-07-14T09:15:40.57 0.6 undecidable manual Sg 184 11.877 0.128 50
IV.MUCR.HHZ. 2011-07-14T09:15:36.94 0.3 undecidable manual Pg 46 36.1416 0.311 69
IV.MNO.SHE. 2011-07-14T09:15:35.02 0.1 undecidable manual Pg 39 16.3725 -0.105 100
IV.GALF.HHZ. 2011-07-14T09:15:34.77 0.3 undecidable manual Pg 184 11.877 -0.149 75
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