Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 06-04-2009 and time 20:59:14 (Italy) in region 5 km NW L'Aquila (AQ)

A magnitude ML 2.0 earthquake occured in region: 5 km NW L'Aquila (AQ), on

  • 06-04-2009 18:59:14 (UTC)
  • 06-04-2009 20:59:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3770, 13.3540 at 11 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 5 69753 69753
Scoppito AQ 8 3727 73480
Pizzoli AQ 8 4326 77806
Lucoli AQ 10 1011 78817
Barete AQ 10 737 79554
Tornimparte AQ 10 3187 82741
Cagnano Amiterno AQ 14 1369 84110
Ocre AQ 14 1167 85277
Fossa AQ 14 721 85998
Capitignano AQ 17 665 86663
Poggio Picenze AQ 17 1136 87799
Sant'Eusanio Forconese AQ 17 394 88193
Montereale AQ 19 2581 90774
Rocca di Cambio AQ 19 533 91307
Villa Sant'Angelo AQ 19 424 91731
San Demetrio ne' Vestini AQ 20 1854 93585

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 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 NE of Guidonia Montecelio (88673 inhabitants)
67 Km W of Chieti (51815 inhabitants)
67 Km W of Montesilvano (53738 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
18:59:14		 42.377 13.354 11 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 762119
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 18:59:14 ± 0.08
Latitude 42.3770 ± 0.0045
Longitude 13.3540 ± 0.0085
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 762119

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 666
Semi-minor axis of confidence ellipse (meter) 516
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) 860.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 52
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.83817
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 12
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 762119
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:24:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.SHZ. 2009-04-06T18:59:31.40 0.6 undecidable manual Sg 339 54.3012 0.197 45
IV.ASSB.HHE. 2009-04-06T18:59:30.54 0.1 undecidable manual Pg 323 93.0402 0.559 76
IV.OFFI.HHN. 2009-04-06T18:59:27.13 10.0 undecidable manual Pg 0 0 0
IV.PTQR.SHZ. 2009-04-06T18:59:26.93 0.3 undecidable manual Sg 174 39.5271 -0.336 66
IV.TERO.HHZ. 2009-04-06T18:59:25.28 0.1 undecidable manual Sg 37 34.1436 -0.525 83
IV.INTR.HHE. 2009-04-06T18:59:25.33 0.1 undecidable manual Pg 132 60.7947 0.33 86
.CERT.---. 2009-04-06T18:59:24.23 0.1 undecidable manual Pg 213 56.499 -0.111 90
IV.MNS.HHN. 2009-04-06T18:59:24.04 0.6 undecidable manual Pg 271 55.1004 -0.094 45
IV.NRCA.SHZ. 2009-04-06T18:59:23.91 0.1 undecidable manual Pg 339 54.3012 -0.098 90
IV.FAGN.HHN. 2009-04-06T18:59:23.13 0.6 undecidable manual Sg 123 22.5552 0.413 46
IV.FIAM.HHZ. 2009-04-06T18:59:22.66 0.1 undecidable manual Sg 238 22.8549 -0.152 95
IV.VCEL.EHZ. 2009-04-06T18:59:22.13 0.1 undecidable manual Pg 87 39.9267 0.345 89
IV.PTQR.SHZ. 2009-04-06T18:59:21.64 0.1 undecidable manual Pg 174 39.5271 -0.091 93
.CAMP.---. 2009-04-06T18:59:21.28 0.3 undecidable manual Sg 14 18.1707 -0.221 72
IV.TERO.HHZ. 2009-04-06T18:59:20.69 0.1 undecidable manual Pg 37 34.1436 -0.202 91
IV.FIAM.HHZ. 2009-04-06T18:59:19.28 0.1 undecidable manual Pg 238 22.8549 0.123 96
IV.FAGN.HHN. 2009-04-06T18:59:19.42 0.1 undecidable manual Pg 123 22.5552 0.315 93
.CAMP.---. 2009-04-06T18:59:18.72 0.1 undecidable manual Pg 14 18.1707 0.314 92
MN.AQU.HHZ. 2009-04-06T18:59:17.84 0.1 undecidable manual Sg 123 4.6953 -0.393 95
MN.AQU.HHZ. 2009-04-06T18:59:16.51 0.1 undecidable manual Pg 123 4.6953 -0.011 100
IV.SNTG.SHZ. 2009-04-06T18:58:33.31 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
Waveforms Seismic signals in miniseed + resp format Download