Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 06-04-2009 and time 19:24:10 (Italy) in region 4 km NW L'Aquila (AQ)

A magnitude ML 2.0 earthquake occured in region: 4 km NW L'Aquila (AQ), on

  • 06-04-2009 17:24:10 (UTC)
  • 06-04-2009 19:24:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3740, 13.3620 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 4 69753 69753
Scoppito AQ 9 3727 73480
Pizzoli AQ 9 4326 77806
Lucoli AQ 9 1011 78817
Tornimparte AQ 10 3187 82004
Barete AQ 11 737 82741
Ocre AQ 14 1167 83908
Fossa AQ 14 721 84629
Cagnano Amiterno AQ 15 1369 85998
Poggio Picenze AQ 16 1136 87134
Sant'Eusanio Forconese AQ 16 394 87528
Capitignano AQ 17 665 88193
Rocca di Cambio AQ 19 533 88726
Villa Sant'Angelo AQ 19 424 89150
San Demetrio ne' Vestini AQ 19 1854 91004
Montereale AQ 19 2581 93585
Barisciano AQ 20 1828 95413

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km NW of L'Aquila (69753 inhabitants)
43 Km SW of Teramo (54892 inhabitants)
62 Km E of Terni (111501 inhabitants)
65 Km NE of Tivoli (56533 inhabitants)
66 Km W of Chieti (51815 inhabitants)
67 Km W of Montesilvano (53738 inhabitants)
67 Km NE of Guidonia Montecelio (88673 inhabitants)
71 Km W of Pescara (121014 inhabitants)
84 Km SE of Foligno (57155 inhabitants)
90 Km NE of Roma (2864731 inhabitants)
90 Km NE of Velletri (53303 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 2.0 2009-04-06
17:24:10		 42.374 13.362 10 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 761509
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 17:24:10 ± 0.09
Latitude 42.3740 ± 0.0045
Longitude 13.3620 ± 0.0085
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 761509

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 650
Semi-minor axis of confidence ellipse (meter) 425
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 96
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) 98
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.49
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.69158
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 11
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 761509
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:24:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.STR3.BHE. 2009-04-06T17:24:39.63 10.0 undecidable manual Pg 0 0 0
IV.FDMO.HHZ. 2009-04-06T17:24:34.15 0.3 undecidable manual Sg 343 76.7676 0.224 63
IV.NRCA.SHZ. 2009-04-06T17:24:27.82 0.1 undecidable manual Sg 338 54.8007 -0.237 88
IV.LPEL.HHN. 2009-04-06T17:24:25.04 1.0 undecidable manual Pg 118 76.6677 0.916 17
IV.FDMO.HHZ. 2009-04-06T17:24:24.50 0.1 undecidable manual Pg 343 76.7676 0.358 82
IV.OFFI.HHE. 2009-04-06T17:24:23.48 1.0 undecidable manual Pg 23 67.5768 0.759 18
IV.PTQR.SHZ. 2009-04-06T17:24:23.96 0.1 undecidable manual Sg 175 39.2274 0.055 94
IV.TERO.HHZ. 2009-04-06T17:24:22.06 0.1 undecidable manual Sg 36 33.9438 -0.428 88
IV.MNS.HHE. 2009-04-06T17:24:22.69 10.0 undecidable manual Pg 0 0 0
IV.SGTA.HHE. 2009-04-06T17:24:22.36 10.0 undecidable manual Pg 0 0 0
IV.NRCA.SHZ. 2009-04-06T17:24:21.16 0.1 undecidable manual Pg 338 54.8007 0.406 85
IV.FAGN.HHN. 2009-04-06T17:24:19.12 0.1 undecidable manual Sg 123 21.867 -0.018 98
IV.FIAM.HHZ. 2009-04-06T17:24:19.23 0.1 undecidable manual Sg 240 23.2545 -0.368 90
IV.PTQR.SHZ. 2009-04-06T17:24:18.36 0.1 undecidable manual Pg 175 39.2274 0.002 95
IV.VCEL.EHE. 2009-04-06T17:24:18.73 0.6 undecidable manual Pg 87 39.3273 0.366 44
IV.TERO.HHZ. 2009-04-06T17:24:17.04 0.1 undecidable manual Pg 36 33.9438 -0.499 86
IV.CAMP.HHN. 2009-04-06T17:24:17.92 0.1 undecidable manual Sg 12 18.2706 -0.125 96
IV.FIAM.HHZ. 2009-04-06T17:24:15.84 0.1 undecidable manual Pg 240 23.2545 -0.03 97
IV.CAMP.HHN. 2009-04-06T17:24:15.12 0.1 undecidable manual Pg 12 18.2706 0.147 96
MN.AQU.HHE. 2009-04-06T17:24:14.62 0.1 undecidable manual Sg 125 3.996 0.046 100
IV.FAGN.HHN. 2009-04-06T17:24:14.70 0.6 undecidable manual Pg 123 21.867 -0.906 37
MN.AQU.HHE. 2009-04-06T17:24:13.38 0.1 undecidable manual Pg 125 3.996 0.409 93
IV.ORI.EHE. 2009-04-06T17:24:03.31 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
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