Earthquake with magnitude of ML 2.3 on date 07-04-2009 and time 13:55:14 (Italy) in region 5 km NE L'Aquila (AQ)

A magnitude ML 2.3 earthquake occured in region: 5 km NE L'Aquila (AQ), on

  • 07-04-2009 11:55:14 (UTC)
  • 07-04-2009 13:55:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3880, 13.4380 at 7 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
L'Aquila AQ 5 69753 69753
Fossa AQ 11 721 70474
Poggio Picenze AQ 11 1136 71610
Ocre AQ 12 1167 72777
Pizzoli AQ 13 4326 77103
Sant'Eusanio Forconese AQ 13 394 77497
Lucoli AQ 13 1011 78508
Barisciano AQ 14 1828 80336
Barete AQ 15 737 81073
San Demetrio ne' Vestini AQ 15 1854 82927
Scoppito AQ 15 3727 86654
Villa Sant'Angelo AQ 15 424 87078
Tornimparte AQ 16 3187 90265
Rocca di Cambio AQ 17 533 90798
Pietracamela TE 18 271 91069
Santo Stefano di Sessanio AQ 18 111 91180
Crognaleto TE 18 1297 92477
Prata d'Ansidonia AQ 18 496 92973
Capitignano AQ 19 665 93638
Fagnano Alto AQ 19 418 94056
Cagnano Amiterno AQ 19 1369 95425
Campotosto AQ 20 542 95967
Fano Adriano TE 20 296 96263

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km NE of L'Aquila (69753 inhabitants)
37 Km SW of Teramo (54892 inhabitants)
60 Km W of Montesilvano (53738 inhabitants)
60 Km W of Chieti (51815 inhabitants)
64 Km W of Pescara (121014 inhabitants)
68 Km E of Terni (111501 inhabitants)
71 Km NE of Tivoli (56533 inhabitants)
73 Km NE of Guidonia Montecelio (88673 inhabitants)
87 Km SE of Foligno (57155 inhabitants)
95 Km NE of Velletri (53303 inhabitants)
96 Km NE of Roma (2864731 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 2.3 2009-04-07
11:55:14
42.388 13.438 7 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 767179
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-07 11:55:14 ± 0.1
Latitude 42.3880 ± 0.0054
Longitude 13.4380 ± 0.0085
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 767179

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 644
Semi-minor axis of confidence ellipse (meter) 221
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 94
Circular confidence region, given by single value of horizontal uncertainty (meter) 922.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.54
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.69697
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 13
Magnitude information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 767179
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:30:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
SI.RISI.BHE. 2009-04-07T11:56:26.01 10.0 undecidable manual Pg 0 0 0
IV.AOI.HHN. 2009-04-07T11:55:57.59 10.0 undecidable manual Sg 0 0 0
IV.MURB.HHE. 2009-04-07T11:55:54.04 10.0 undecidable manual Pg 0 0 0
IV.CING.HHN. 2009-04-07T11:55:49.70 10.0 undecidable manual Sg 0 0 0
IV.PARC.HHZ. 2009-04-07T11:55:48.18 10.0 undecidable manual Sg 0 0 0
IV.TRTR.HHE. 2009-04-07T11:55:44.99 10.0 undecidable manual Pg 0 0 0
IV.CIGN.HHZ. 2009-04-07T11:55:42.77 10.0 undecidable manual Pg 0 0 0
IV.PARC.HHZ. 2009-04-07T11:55:41.20 10.0 undecidable manual Pg 0 0 0
IV.CING.HHN. 2009-04-07T11:55:41.20 10.0 undecidable manual Pg 0 0 0
IV.PIEI.HHE. 2009-04-07T11:55:41.04 10.0 undecidable manual Pg 0 0 0
IV.AOI.HHN. 2009-04-07T11:55:40.36 10.0 undecidable manual Pg 0 0 0
IV.ASSB.HHN. 2009-04-07T11:55:40.93 10.0 undecidable manual Pg 0 0 0
IV.FDMO.HHZ. 2009-04-07T11:55:39.11 0.3 undecidable manual Sg 338 77.367 0.616 58
IV.ARVD.HHE. 2009-04-07T11:55:38.50 10.0 undecidable manual Pg 0 0 0
IV.SNTG.SHZ. 2009-04-07T11:55:34.72 10.0 undecidable manual Pg 0 0 0
IV.POFI.HHE. 2009-04-07T11:55:34.40 10.0 undecidable manual Pg 0 0 0
.INTR.HHE. 2009-04-07T11:55:33.80 0.1 undecidable manual Sg 137 56.6988 0.824 74
IV.CESI.HHE. 2009-04-07T11:55:33.16 10.0 undecidable manual Sg 0 0 0
.NRCA.SHZ. 2009-04-07T11:55:32.82 0.1 undecidable manual Sg 332 55.9995 0.027 93
IV.FDMO.HHZ. 2009-04-07T11:55:29.22 1.0 undecidable manual Pg 338 77.367 0.909 17
IV.PTQR.SHZ. 2009-04-07T11:55:28.31 1.0 undecidable manual Sg 184 40.7259 -0.414 22
IV.OFFI.HHN. 2009-04-07T11:55:27.12 0.3 undecidable manual Pg 18 63.8916 0.887 53
IV.VCEL.EHE. 2009-04-07T11:55:26.38 0.3 undecidable manual Sg 89 32.9448 0.312 69
IV.MNS.HHE. 2009-04-07T11:55:26.70 1.0 undecidable manual Pg 270 62.0934 0.751 19
IV.VVLD.HHZ. 2009-04-07T11:55:25.13 0.3 undecidable manual Pg 165 59.496 -0.43 64
.FIAM.HHZ. 2009-04-07T11:55:24.84 0.1 undecidable manual Sg 243 29.5482 -0.062 97
.NRCA.SHZ. 2009-04-07T11:55:24.37 0.1 undecidable manual Pg 332 55.9995 -0.648 80
.INTR.HHE. 2009-04-07T11:55:24.73 0.3 undecidable manual Pg 137 56.6988 -0.395 65
.TERO.HHE. 2009-04-07T11:55:24.41 0.1 undecidable manual Sg 27 29.3484 -0.419 90
IV.PTQR.SHZ. 2009-04-07T11:55:22.10 0.1 undecidable manual Pg 184 40.7259 -0.567 84
.CAMP.---. 2009-04-07T11:55:20.86 0.1 undecidable manual Sg 352 16.5723 0.282 95
IV.FAGN.HHZ. 2009-04-07T11:55:20.80 0.6 undecidable manual Sg 139 18.0708 -0.287 47
.FIAM.HHZ. 2009-04-07T11:55:20.29 0.1 undecidable manual Pg 243 29.5482 -0.174 95
IV.VCEL.EHE. 2009-04-07T11:55:20.97 0.1 undecidable manual Pg 89 32.9448 -0.167 94
.TERO.HHE. 2009-04-07T11:55:19.89 0.1 undecidable manual Pg 27 29.3484 -0.53 87
IV.FAGN.HHZ. 2009-04-07T11:55:18.56 0.1 undecidable manual Pg 139 18.0708 0.298 94
IV.CESI.HHE. 2009-04-07T11:55:18.97 10.0 undecidable manual Pg 0 0 0
.CAMP.---. 2009-04-07T11:55:17.94 0.1 undecidable manual Pg 352 16.5723 -0.025 100
MN.AQU.HHZ. 2009-04-07T11:55:17.60 0.1 undecidable manual Sg 218 4.8951 0.348 95
MN.AQU.HHZ. 2009-04-07T11:55:16.22 0.1 undecidable manual Pg 218 4.8951 0.172 99
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