Earthquake with magnitude of Md 2.0 on date 18-10-2011 and time 11:07:56 (Italy) in region 4 km SE Troina (EN)

A magnitude Md 2.0 earthquake occured in region: 4 km SE Troina (EN), on

  • 18-10-2011 09:07:56 (UTC)
  • 18-10-2011 11:07:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7680, 14.6410 at 39 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
San Teodoro ME 10 1403 10776
CesarĂ² ME 11 2439 13215
Gagliano Castelferrato EN 11 3593 16808
Cerami EN 13 2006 18814
Regalbuto EN 13 7277 26091
Agira EN 16 8345 34436
Capizzi ME 17 3176 37612
Bronte CT 17 19172 56784
Maniace CT 18 3765 60549
Centuripe EN 19 5470 66019

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km NW of Catania (314555 inhabitants)
49 Km W of Acireale (52622 inhabitants)
59 Km NE of Caltanissetta (63360 inhabitants)
85 Km NE of Gela (75827 inhabitants)
91 Km N of Vittoria (63339 inhabitants)
93 Km SW of Messina (238439 inhabitants)
94 Km N of Ragusa (73313 inhabitants)
96 Km W of Reggio di Calabria (183035 inhabitants)
98 Km NW of Siracusa (122291 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 2.0 2011-10-18
09:07:56
37.768 14.641 39 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1298019
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-10-18 09:07:56 ± 0.29
Latitude 37.7680 ± 0.0135
Longitude 14.6410 ± 0.0398
Depth (km) 39 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1298019

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3620
Semi-minor axis of confidence ellipse (meter) 607
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 290
Circular confidence region, given by single value of horizontal uncertainty (meter) 3807.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 149
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33005
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.0

Field Value
Value 2.0
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1298019
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:43:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NL9.EHZ. 2011-10-18T09:08:47.90 10.0 undecidable manual Pg 0 0 0
IV.MPG.SHE. 2011-10-18T09:08:46.11 10.0 undecidable manual Pg 0 0 0
IV.MUCR.HHE. 2011-10-18T09:08:11.95 0.6 undecidable manual Sg 34 36.6411 0.048 48
IV.MNO.SHE. 2011-10-18T09:08:09.08 0.3 undecidable manual Sg 15 18.6702 0.048 75
IV.GALF.HHZ. 2011-10-18T09:08:08.07 0.6 undecidable manual Sg 226 9.1797 -0.081 50
IV.MUCR.HHE. 2011-10-18T09:08:05.53 0.3 undecidable manual Pg 34 36.6411 0.114 72
IV.GALF.HHZ. 2011-10-18T09:08:03.38 0.1 undecidable manual Pg 226 9.1797 0.134 100
IV.MNO.SHE. 2011-10-18T09:08:03.54 0.1 undecidable manual Pg 15 18.6702 -0.22 95
IV.ECNV.HHZ. 2011-10-18T09:08:03.84 0.3 undecidable manual Pg 162 20.1687 -0.03 74
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
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