Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 17-02-2011 and time 16:18:47 (Italy) in region 3 km NW Cagnano Amiterno (AQ)

A magnitude ML 0.9 earthquake occured in region: 3 km NW Cagnano Amiterno (AQ), on

  • 17-02-2011 15:18:47 (UTC)
  • 17-02-2011 16:18:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.4800, 13.1980 at 3 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Cagnano Amiterno AQ 3 1369 1369
Montereale AQ 6 2581 3950
Borbona RI 7 617 4567
Barete AQ 8 737 5304
Pizzoli AQ 9 4326 9630
Posta RI 10 694 10324
Capitignano AQ 10 665 10989
Antrodoco RI 12 2588 13577
Micigliano RI 12 127 13704
Scoppito AQ 13 3727 17431
Borgo Velino RI 14 972 18403
Cittareale RI 16 482 18885
Castel Sant'Angelo RI 17 1308 20193
Campotosto AQ 17 542 20735
Amatrice RI 18 2657 23392

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NW of L'Aquila (69753 inhabitants)
46 Km E of Terni (111501 inhabitants)
46 Km W of Teramo (54892 inhabitants)
66 Km NE of Guidonia Montecelio (88673 inhabitants)
66 Km NE of Tivoli (56533 inhabitants)
67 Km SE of Foligno (57155 inhabitants)
78 Km W of Montesilvano (53738 inhabitants)
81 Km W of Chieti (51815 inhabitants)
83 Km W of Pescara (121014 inhabitants)
88 Km NE of Roma (2864731 inhabitants)
90 Km E of Viterbo (67173 inhabitants)
95 Km NE of Velletri (53303 inhabitants)
96 Km SE of Perugia (166134 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 0.9 		2011-02-17
15:18:47		 42.48 13.198 3 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 1173629
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-02-17 15:18:47 ± 0.12
Latitude 42.4800 ± 0.0045
Longitude 13.1980 ± 0.0061
Depth (km) 3 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1173629

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 514
Semi-minor axis of confidence ellipse (meter) 268
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 247
Circular confidence region, given by single value of horizontal uncertainty (meter) 707.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 176
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.22033
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1173629
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 22:53:13

Md:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1173629
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 22:53:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHE. 2011-02-17T15:19:00.52 10.0 undecidable manual Pg 0 0 0
IV.T0106.EHE. 2011-02-17T15:18:56.62 0.3 undecidable manual Sg 141 24.4533 0.387 67
IV.SMA1.EHZ. 2011-02-17T15:18:54.92 0.3 undecidable manual Sg 34 20.1687 0.172 71
IV.LNSS.HHN. 2011-02-17T15:18:54.51 0.3 undecidable manual Sg 317 18.7701 0.243 70
IV.RM32.EHZ. 2011-02-17T15:18:52.29 0.3 undecidable manual Sg 38 12.7761 0.071 73
IV.T0106.EHE. 2011-02-17T15:18:52.33 0.3 undecidable manual Pg 141 24.4533 -0.286 69
IV.LNSS.HHN. 2011-02-17T15:18:51.35 0.1 undecidable manual Pg 317 18.7701 -0.128 96
IV.RM29.EHZ. 2011-02-17T15:18:51.12 0.3 undecidable manual Sg 2 8.9799 0.152 73
IV.SMA1.EHZ. 2011-02-17T15:18:51.56 0.1 undecidable manual Pg 34 20.1687 -0.198 94
IV.RM32.EHZ. 2011-02-17T15:18:50.19 0.1 undecidable manual Pg 38 12.7761 -0.104 97
IV.RM33.EHZ. 2011-02-17T15:18:49.21 0.1 undecidable manual Sg 23 3.4965 -0.095 99
IV.RM29.EHZ. 2011-02-17T15:18:49.59 0.1 undecidable manual Pg 2 8.9799 0.016 99
IV.RM33.EHZ. 2011-02-17T15:18:48.58 0.1 undecidable manual Pg 23 3.4965 -0.036 100
IV.NOV.HHN. 2011-02-17T15:18:29.45 10.0 undecidable manual Pg 0 0 0
IV.FDMO.HHN. 2011-02-17T15:18:26.02 10.0 undecidable manual Pg 0 0 0
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