Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 17-02-2009 and time 14:13:03 (Italy) in region 3 km SW L'Aquila (AQ)

A magnitude ML 2.3 earthquake occured in region: 3 km SW L'Aquila (AQ), on

  • 17-02-2009 13:13:03 (UTC)
  • 17-02-2009 14:13:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.3340, 13.3730 at 10 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
L'Aquila AQ 3 69753 69753
Lucoli AQ 6 1011 70764
Tornimparte AQ 8 3187 73951
Ocre AQ 10 1167 75118
Scoppito AQ 10 3727 78845
Fossa AQ 11 721 79566
Pizzoli AQ 13 4326 83892
Sant'Eusanio Forconese AQ 14 394 84286
Poggio Picenze AQ 14 1136 85422
Rocca di Cambio AQ 14 533 85955
Barete AQ 15 737 86692
Villa Sant'Angelo AQ 15 424 87116
San Demetrio ne' Vestini AQ 16 1854 88970
Barisciano AQ 18 1828 90798
Rocca di Mezzo AQ 18 1526 92324
Cagnano Amiterno AQ 19 1369 93693
Fagnano Alto AQ 19 418 94111
Borgorose RI 19 4591 98702

Municipalities with at least 50000 inhabitants

An earthquake occurred to
3 Km SW of L'Aquila (69753 inhabitants)
45 Km SW of Teramo (54892 inhabitants)
63 Km NE of Tivoli (56533 inhabitants)
65 Km E of Terni (111501 inhabitants)
65 Km NE of Guidonia Montecelio (88673 inhabitants)
65 Km W of Chieti (51815 inhabitants)
67 Km W of Montesilvano (53738 inhabitants)
71 Km W of Pescara (121014 inhabitants)
87 Km NE of Velletri (53303 inhabitants)
88 Km NE of Roma (2864731 inhabitants)
88 Km SE of Foligno (57155 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 2.5
ML 2.3 		2009-02-17
13:13:03		 42.334 13.373 10 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 745029
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-02-17 13:13:03 ± 0.1
Latitude 42.3340 ± 0.0063
Longitude 13.3730 ± 0.0097
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 745029

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 725
Semi-minor axis of confidence ellipse (meter) 699
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 53
Circular confidence region, given by single value of horizontal uncertainty (meter) 1063.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 51
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.62
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.09268
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 745029
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:05:21

Md:2.5

Field Value
Value 2.5
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 745029
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:05:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MURB.HHE. 2009-02-17T13:13:29.79 10.0 undecidable manual Sg 0 0 0
IV.MURB.HHE. 2009-02-17T13:13:26.57 10.0 undecidable manual Pg 0 0 0
IV.MGAB.HHZ. 2009-02-17T13:13:25.38 0.3 undecidable manual Pg 302 121.2897 1.081 44
IV.INTR.HHZ. 2009-02-17T13:13:22.14 0.6 undecidable manual Sg 129 56.499 0.265 45
IV.SNTG.SHZ. 2009-02-17T13:13:22.61 10.0 undecidable manual Pg 0 0 0
IV.CERT.HHZ. 2009-02-17T13:13:20.83 0.6 undecidable manual Sg 217 53.502 -0.246 45
IV.POFI.HHZ. 2009-02-17T13:13:18.74 0.6 undecidable manual Pg 158 73.9704 1.737 22
IV.CESI.HHZ. 2009-02-17T13:13:18.55 0.3 undecidable manual Pg 333 83.6496 0.055 67
IV.LNSS.HHZ. 2009-02-17T13:13:18.67 0.6 undecidable manual Sg 318 40.3263 1.11 34
IV.SDI.SHZ. 2009-02-17T13:13:18.80 10.0 undecidable manual Pg 0 0 0
IV.OFFI.HHN. 2009-02-17T13:13:17.33 0.3 undecidable manual Pg 21 71.373 0.723 57
IV.FDMO.HHZ. 2009-02-17T13:13:17.76 0.3 undecidable manual Pg 343 81.252 -0.376 63
IV.TERO.HHZ. 2009-02-17T13:13:16.84 0.6 undecidable manual Sg 30 37.1295 0.129 48
IV.LPEL.HHN. 2009-02-17T13:13:16.62 0.3 undecidable manual Pg 115 73.8705 -0.368 64
IV.VVLD.HHZ. 2009-02-17T13:13:16.57 10.0 undecidable manual Pg 0 0 0
IV.CRAC.EHZ. 2009-02-17T13:13:14.96 10.0 undecidable manual Pg 0 0 0
IV.INTR.HHZ. 2009-02-17T13:13:14.04 0.3 undecidable manual Pg 129 56.499 -0.278 67
IV.NRCA.HHE. 2009-02-17T13:13:14.76 0.6 undecidable manual Pg 339 59.2962 0.019 47
IV.CERT.HHZ. 2009-02-17T13:13:13.47 0.1 undecidable manual Pg 217 53.502 -0.386 88
IV.FIAM.HHZ. 2009-02-17T13:13:12.05 0.6 undecidable manual Sg 251 22.2555 -0.337 47
IV.FAGN.HHZ. 2009-02-17T13:13:11.65 0.3 undecidable manual Sg 114 18.87 0.311 71
IV.VCEL.EHZ. 2009-02-17T13:13:11.40 0.3 undecidable manual Pg 80 38.9277 -0.207 70
IV.CAMP.HHZ. 2009-02-17T13:13:11.95 0.6 undecidable manual Sg 8 22.5552 -0.534 45
IV.LNSS.HHZ. 2009-02-17T13:13:11.98 0.3 undecidable manual Pg 318 40.3263 0.153 71
IV.TERO.HHZ. 2009-02-17T13:13:10.51 0.1 undecidable manual Pg 30 37.1295 -0.824 78
IV.PTQR.SHZ. 2009-02-17T13:13:10.86 0.6 undecidable manual Pg 176 34.743 -0.103 48
IV.FIAM.HHZ. 2009-02-17T13:13:08.80 0.1 positive manual Pg 251 22.2555 -0.039 100
IV.FAGN.HHZ. 2009-02-17T13:13:08.31 0.1 undecidable manual Pg 114 18.87 0.075 100
IV.CAMP.HHZ. 2009-02-17T13:13:08.66 0.1 undecidable manual Pg 8 22.5552 -0.235 96
MN.AQU.HHZ. 2009-02-17T13:13:07.60 0.3 undecidable manual Sg 48 3.1968 0.119 76
MN.AQU.HHZ. 2009-02-17T13:13:06.27 0.1 undecidable manual Pg 48 3.1968 0.262 99
NI.AGOR.HHE. 2009-02-17T13:12:47.56 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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