Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 24-02-2009 and time 19:03:52 (Italy) in region 3 km SW Valle Castellana (TE)

A magnitude ML 1.5 earthquake occured in region: 3 km SW Valle Castellana (TE), on

  • 24-02-2009 18:03:52 (UTC)
  • 24-02-2009 19:03:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7180, 13.4690 at 22 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
Valle Castellana TE 3 977 977
Rocca Santa Maria TE 6 537 1514
Acquasanta Terme AP 8 2916 4430
Cortino TE 11 656 5086
Arquata del Tronto AP 15 1178 6264
Roccafluvione AP 16 2010 8274
Torricella Sicura TE 17 2641 10915
Civitella del Tronto TE 17 5116 16031
Ascoli Piceno AP 18 49407 65438
Amatrice RI 18 2657 68095
Folignano AP 18 9241 77336
Montegallo AP 18 523 77859
Campli TE 18 7209 85068
Accumoli RI 18 667 85735
Venarotta AP 18 2066 87801
Crognaleto TE 19 1297 89098
Fano Adriano TE 19 296 89394
Campotosto AQ 20 542 89936
Montorio al Vomano TE 20 8218 98154

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km W of Teramo (54892 inhabitants)
41 Km N of L'Aquila (69753 inhabitants)
60 Km W of Montesilvano (53738 inhabitants)
67 Km W of Pescara (121014 inhabitants)
68 Km E of Foligno (57155 inhabitants)
69 Km E of Terni (111501 inhabitants)
70 Km NW of Chieti (51815 inhabitants)
98 Km E of Perugia (166134 inhabitants)
100 Km S of Ancona (100861 inhabitants)
100 Km NE of Tivoli (56533 inhabitants)
100 Km NE of Guidonia Montecelio (88673 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 1.8
ML 1.5 		2009-02-24
18:03:52		 42.718 13.469 22 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 746339
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-02-24 18:03:52 ± 0.14
Latitude 42.7180 ± 0.0045
Longitude 13.4690 ± 0.0086
Depth (km) 22 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 746339

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 667
Semi-minor axis of confidence ellipse (meter) 392
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 240
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) 175
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.51981
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 746339
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:06:49

Md:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 746339
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:06:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FAGN.HHE. 2009-02-24T18:04:19.49 10.0 undecidable manual Sg 0 0 0
IV.CESI.HHZ. 2009-02-24T18:04:10.33 0.3 undecidable manual Sg 305 55.7997 0.39 65
IV.FIAM.HHN. 2009-02-24T18:04:10.56 0.3 undecidable manual Sg 210 57.6978 0.148 68
IV.FAGN.HHE. 2009-02-24T18:04:09.88 10.0 undecidable manual Pg 0 0 0
IV.FDMO.HHE. 2009-02-24T18:04:07.72 0.3 undecidable manual Sg 319 47.0196 0.046 70
MN.AQU.HHN. 2009-02-24T18:04:06.59 10.0 undecidable manual Pg 0 0 0
IV.LNSS.HHE. 2009-02-24T18:04:05.38 0.3 undecidable manual Sg 250 37.2294 0.143 71
IV.NRCA.HHE. 2009-02-24T18:04:03.51 0.3 undecidable manual Sg 294 31.5462 -0.361 69
IV.CESI.HHZ. 2009-02-24T18:04:02.51 0.1 undecidable manual Pg 305 55.7997 0.076 92
IV.FIAM.HHN. 2009-02-24T18:04:02.63 0.6 undecidable manual Pg 210 57.6978 -0.08 46
IV.CAMP.HHZ. 2009-02-24T18:04:01.47 0.1 undecidable manual Sg 194 20.868 -0.03 100
IV.TERO.HHN. 2009-02-24T18:04:00.63 0.3 undecidable manual Sg 134 15.2736 0.164 73
IV.FDMO.HHE. 2009-02-24T18:04:00.87 0.1 undecidable manual Pg 319 47.0196 -0.257 92
IV.ORI.EHE. 2009-02-24T18:04:00.51 10.0 undecidable manual Pg 0 0 0
IV.LNSS.HHE. 2009-02-24T18:03:59.66 0.1 undecidable manual Pg 250 37.2294 -0.061 97
IV.NRCA.HHE. 2009-02-24T18:03:58.77 0.1 undecidable manual Pg 294 31.5462 -0.165 96
IV.TERO.HHN. 2009-02-24T18:03:57.07 0.1 undecidable manual Pg 134 15.2736 0.103 99
IV.CAMP.HHZ. 2009-02-24T18:03:57.57 0.1 undecidable manual Pg 194 20.868 0.007 100
MN.VSL.HHZ. 2009-02-24T18:03:43.79 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