Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 07-04-2009 and time 20:21:19 (Italy) in region 3 km E L'Aquila (AQ)

A magnitude ML 2.0 earthquake occured in region: 3 km E L'Aquila (AQ), on

  • 07-04-2009 18:21:19 (UTC)
  • 07-04-2009 20:21:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3550, 13.4370 at 15 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
Fossa AQ 8 721 70474
Ocre AQ 8 1167 71641
Poggio Picenze AQ 10 1136 72777
Sant'Eusanio Forconese AQ 10 394 73171
Lucoli AQ 11 1011 74182
Villa Sant'Angelo AQ 13 424 74606
San Demetrio ne' Vestini AQ 13 1854 76460
Barisciano AQ 13 1828 78288
Tornimparte AQ 13 3187 81475
Rocca di Cambio AQ 14 533 82008
Pizzoli AQ 15 4326 86334
Scoppito AQ 15 3727 90061
Fagnano Alto AQ 16 418 90479
Prata d'Ansidonia AQ 16 496 90975
Barete AQ 17 737 91712
Santo Stefano di Sessanio AQ 17 111 91823
Rocca di Mezzo AQ 18 1526 93349
Fontecchio AQ 20 369 93718
San Pio delle Camere AQ 20 661 94379

Municipalities with at least 50000 inhabitants

An earthquake occurred to
3 Km E of L'Aquila (69753 inhabitants)
40 Km SW of Teramo (54892 inhabitants)
60 Km W of Chieti (51815 inhabitants)
61 Km W of Montesilvano (53738 inhabitants)
65 Km W of Pescara (121014 inhabitants)
68 Km NE of Tivoli (56533 inhabitants)
69 Km E of Terni (111501 inhabitants)
71 Km NE of Guidonia Montecelio (88673 inhabitants)
90 Km SE of Foligno (57155 inhabitants)
92 Km NE of Velletri (53303 inhabitants)
94 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 2.0 2009-04-07
18:21:19		 42.355 13.437 15 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 768629
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-07 18:21:19 ± 0.12
Latitude 42.3550 ± 0.0063
Longitude 13.4370 ± 0.0073
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 768629

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 618
Semi-minor axis of confidence ellipse (meter) 410
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 340
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) 91
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.53420
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 9
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 768629
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:32:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GE.MATE.HHE. 2009-04-07T18:22:35.68 10.0 undecidable manual Pg 0 0 0
IV.CING.HHE. 2009-04-07T18:22:33.93 10.0 undecidable manual Pg 0 0 0
IV.SNTG.SHZ. 2009-04-07T18:22:31.39 10.0 undecidable manual Pg 0 0 0
IV.MURB.HHZ. 2009-04-07T18:22:28.98 10.0 undecidable manual Pg 0 0 0
IV.CERA.HHZ. 2009-04-07T18:22:27.31 10.0 undecidable manual Sg 0 0 0
IV.CESI.HHZ. 2009-04-07T18:22:24.52 10.0 undecidable manual Sg 0 0 0
IV.OFFI.HHN. 2009-04-07T18:22:22.29 10.0 undecidable manual Pg 0 0 0
IV.POFI.HHN. 2009-04-07T18:22:21.37 10.0 undecidable manual Pg 0 0 0
IV.ASSB.HHZ. 2009-04-07T18:22:18.17 10.0 undecidable manual Pg 0 0 0
IV.CERA.HHZ. 2009-04-07T18:22:17.13 10.0 undecidable manual Pg 0 0 0
IV.FDMO.HHE. 2009-04-07T18:22:16.55 10.0 undecidable manual Pg 0 0 0
IV.CESI.HHZ. 2009-04-07T18:22:15.92 10.0 undecidable manual Pg 0 0 0
IV.GUAR.HHN. 2009-04-07T18:22:12.13 10.0 undecidable manual Pg 0 0 0
IV.SDI.SHZ. 2009-04-07T18:22:11.43 10.0 undecidable manual Pg 0 0 0
IV.MTCE.HHZ. 2009-04-07T18:22:10.67 10.0 undecidable manual Pg 0 0 0
IV.VVLD.HHZ. 2009-04-07T18:22:10.56 10.0 undecidable manual Pg 0 0 0
IV.MNS.HHZ. 2009-04-07T18:22:10.39 10.0 undecidable manual Pg 0 0 0
IV.NRCA.SHZ. 2009-04-07T18:22:03.65 10.0 undecidable manual Pg 334 59.2962 -0.44 63
IV.PTQR.SHZ. 2009-04-07T18:22:03.85 10.0 undecidable manual Pg 0 0 0
IV.INTR.HHN. 2009-04-07T18:22:00.59 10.0 undecidable manual Pg 0 0 0
.NRCA.---. 2009-04-07T18:21:38.19 0.6 undecidable manual Sg 334 59.2962 0.068 46
IV.VCEL.EHN. 2009-04-07T18:21:31.80 0.3 undecidable manual Sg 82 33.3444 0.531 64
IV.CERT.HHZ. 2009-04-07T18:21:30.31 0.3 undecidable manual Pg 220 58.497 0.062 68
IV.TERO.HHZ. 2009-04-07T18:21:30.89 0.3 undecidable manual Sg 25 32.745 -0.207 69
IV.FIAM.HHZ. 2009-04-07T18:21:29.75 0.3 undecidable manual Sg 250 27.9498 -0.102 72
.NRCA.---. 2009-04-07T18:21:29.93 0.3 undecidable manual Pg 334 59.2962 -0.44 63
IV.LNSS.HHE. 2009-04-07T18:21:28.16 0.3 undecidable manual Pg 310 42.5241 0.35 66
IV.CAMP.HHZ. 2009-04-07T18:21:28.18 0.3 undecidable manual Sg 354 20.2686 0.267 71
IV.FAGN.HHE. 2009-04-07T18:21:26.45 0.6 undecidable manual Sg 129 15.5733 -0.374 46
IV.TERO.HHZ. 2009-04-07T18:21:26.01 0.1 undecidable manual Pg 25 32.745 -0.307 91
IV.VCEL.EHN. 2009-04-07T18:21:26.49 0.1 undecidable manual Pg 82 33.3444 0.08 95
MN.AQU.HHZ. 2009-04-07T18:21:25.01 0.3 undecidable manual Sg 268 2.8971 0.155 75
IV.FIAM.HHZ. 2009-04-07T18:21:25.57 0.1 undecidable manual Pg 250 27.9498 -0.025 97
IV.CAMP.HHZ. 2009-04-07T18:21:24.55 0.1 undecidable manual Pg 354 20.2686 0.071 98
IV.FAGN.HHE. 2009-04-07T18:21:23.56 0.3 undecidable manual Pg 129 15.5733 -0.287 70
MN.AQU.HHZ. 2009-04-07T18:21:22.82 0.1 undecidable manual Pg 268 2.8971 0.111 100
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