Earthquake with magnitude of ML 2.0 on date 17-12-2011 and time 13:42:44 (UTC) in region 3 km NW Torricella Sicura (TE)

A magnitude ML 2.0 earthquake occured in region: 3 km NW Torricella Sicura (TE), on

  • 17-12-2011 13:42:44 (UTC)
  • 17-12-2011 14:42:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6810, 13.6390 at 20 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
Torricella Sicura TE 3 2641 2641
Teramo TE 6 54892 57533
Campli TE 7 7209 64742
Rocca Santa Maria TE 9 537 65279
Civitella del Tronto TE 10 5116 70395
Montorio al Vomano TE 11 8218 78613
Basciano TE 13 2434 81047
Cortino TE 13 656 81703
Valle Castellana TE 13 977 82680
Canzano TE 14 1934 84614
Penna Sant'Andrea TE 15 1698 86312
Castellalto TE 15 7513 93825
Tossicia TE 15 1406 95231
Bellante TE 15 7152 102383
Folignano AP 16 9241 111624
Colledara TE 16 2179 113803
Cermignano TE 16 1649 115452
Fano Adriano TE 17 296 115748
Castel Castagna TE 17 500 116248
Maltignano AP 17 2401 118649
Sant'Egidio alla Vibrata TE 17 9811 128460
Sant'Omero TE 18 5243 133703
Pietracamela TE 19 271 133974
Ancarano TE 19 1857 135831
Torano Nuovo TE 20 1611 137442
Crognaleto TE 20 1297 138739
Isola del Gran Sasso d'Italia TE 20 4773 143512
Ascoli Piceno AP 20 49407 192919

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km W of Teramo (54892 inhabitants)
42 Km NE of L'Aquila (69753 inhabitants)
46 Km W of Montesilvano (53738 inhabitants)
53 Km W of Pescara (121014 inhabitants)
57 Km NW of Chieti (51815 inhabitants)
82 Km E of Foligno (57155 inhabitants)
82 Km E of Terni (111501 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
ML 2.0 2011-12-17
13:42:44
42.681 13.639 20 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1323409
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-12-17 13:42:44 ± 0.15
Latitude 42.6810 ± 0.0018
Longitude 13.6390 ± 0.0098
Depth (km) 20 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1323409

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 875
Semi-minor axis of confidence ellipse (meter) 276
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 85
Circular confidence region, given by single value of horizontal uncertainty (meter) 824.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 272
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.41459
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 3
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 1323409
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:19:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHE. 2011-12-17T13:42:59.78 0.6 undecidable manual Sg 292 46.0206 0.087 46
IV.SMA1.EHZ. 2011-12-17T13:42:54.53 0.6 undecidable manual Sg 257 25.4523 -0.014 49
IV.NRCA.HHE. 2011-12-17T13:42:53.25 0.3 undecidable manual Pg 292 46.0206 -0.098 69
IV.TERO.HHN. 2011-12-17T13:42:51.10 0.3 undecidable manual Sg 204 7.0929 -0.042 75
IV.SMA1.EHZ. 2011-12-17T13:42:50.39 0.1 undecidable manual Pg 257 25.4523 0.015 98
IV.TERO.HHN. 2011-12-17T13:42:48.47 0.1 positive manual Pg 204 7.0929 0.057 100
IV.PALZ.HHN. 2011-12-17T13:42:43.88 10.0 undecidable manual Pg 0 0 0
IV.ILLI.HHZ. 2011-12-17T13:42:34.31 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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