Earthquake with magnitude of ML 1.6 on date 17-12-2011 and time 00:27:18 (Italy) in region 4 km NW Torricella Sicura (TE)

A magnitude ML 1.6 earthquake occured in region: 4 km NW Torricella Sicura (TE), on

  • 16-12-2011 23:27:18 (UTC)
  • 17-12-2011 00:27:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6870, 13.6310 at 17 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 4 2641 2641
Campli TE 6 7209 9850
Teramo TE 7 54892 64742
Rocca Santa Maria TE 8 537 65279
Civitella del Tronto TE 10 5116 70395
Montorio al Vomano TE 12 8218 78613
Valle Castellana TE 12 977 79590
Cortino TE 12 656 80246
Basciano TE 13 2434 82680
Canzano TE 15 1934 84614
Folignano AP 15 9241 93855
Castellalto TE 15 7513 101368
Penna Sant'Andrea TE 16 1698 103066
Tossicia TE 16 1406 104472
Bellante TE 16 7152 111624
Colledara TE 17 2179 113803
Fano Adriano TE 17 296 114099
Maltignano AP 17 2401 116500
Sant'Egidio alla Vibrata TE 17 9811 126311
Cermignano TE 17 1649 127960
Castel Castagna TE 17 500 128460
Sant'Omero TE 18 5243 133703
Ancarano TE 19 1857 135560
Ascoli Piceno AP 19 49407 184967
Pietracamela TE 19 271 185238
Torano Nuovo TE 19 1611 186849
Crognaleto TE 20 1297 188146

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km W of Teramo (54892 inhabitants)
42 Km NE of L'Aquila (69753 inhabitants)
47 Km W of Montesilvano (53738 inhabitants)
54 Km W of Pescara (121014 inhabitants)
58 Km NW of Chieti (51815 inhabitants)
81 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
Md 1.5
ML 1.6
2011-12-16
23:27:18
42.687 13.631 17 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1323029
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-12-16 23:27:18 ± 0.11
Latitude 42.6870 ± 0.0045
Longitude 13.6310 ± 0.0086
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1323029

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 592
Semi-minor axis of confidence ellipse (meter) 496
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 123
Circular confidence region, given by single value of horizontal uncertainty (meter) 860.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 188
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.40649
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 1323029
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:18:30

Md:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1323029
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:18:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RAVA.EHZ. 2011-12-16T23:27:48.58 10.0 undecidable manual Pg 0 0 0
IV.VMG.SHZ. 2011-12-16T23:27:45.86 10.0 undecidable manual Pg 0 0 0
IV.CRE.HHZ. 2011-12-16T23:27:44.29 10.0 undecidable manual Pg 0 0 0
IV.CAFE.HHZ. 2011-12-16T23:27:34.13 10.0 undecidable manual Pg 0 0 0
IV.NRCA.HHE. 2011-12-16T23:27:32.69 0.3 undecidable manual Sg 291 45.1215 0.014 70
IV.CIGN.HHE. 2011-12-16T23:27:29.97 10.0 undecidable manual Pg 0 0 0
IV.MURB.HHE. 2011-12-16T23:27:28.67 10.0 undecidable manual Pg 0 0 0
IV.SMA1.EHZ. 2011-12-16T23:27:27.53 0.3 undecidable manual Sg 256 24.8529 0.023 72
.CAMP.HHE. 2011-12-16T23:27:27.64 0.3 undecidable manual Sg 227 24.6531 0.187 70
IV.NRCA.HHE. 2011-12-16T23:27:26.48 0.3 undecidable manual Pg 291 45.1215 -0.002 70
IV.TERO.HHN. 2011-12-16T23:27:24.05 0.3 undecidable manual Sg 197 7.4814 0.026 75
.OFFI.HHZ. 2011-12-16T23:27:24.00 0.3 undecidable manual Pg 9 27.8499 0.081 71
IV.SMA1.EHZ. 2011-12-16T23:27:23.32 0.1 undecidable manual Pg 256 24.8529 -0.176 94
.CAMP.HHE. 2011-12-16T23:27:23.42 0.1 undecidable manual Pg 227 24.6531 -0.043 96
IV.TERO.HHN. 2011-12-16T23:27:21.48 0.1 positive manual Pg 197 7.4814 -0.007 100
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