Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.5 on date 06-04-2009 and time 20:34:36 (Italy) in region 6 km S L'Aquila (AQ)

A magnitude ML 2.5 earthquake occured in region: 6 km S L'Aquila (AQ), on

  • 06-04-2009 18:34:36 (UTC)
  • 06-04-2009 20:34:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3020, 13.4080 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 6 69753 69753
Lucoli AQ 6 1011 70764
Ocre AQ 6 1167 71931
Fossa AQ 7 721 72652
Tornimparte AQ 9 3187 75839
Sant'Eusanio Forconese AQ 10 394 76233
Rocca di Cambio AQ 10 533 76766
Poggio Picenze AQ 11 1136 77902
Villa Sant'Angelo AQ 11 424 78326
San Demetrio ne' Vestini AQ 13 1854 80180
Rocca di Mezzo AQ 14 1526 81706
Scoppito AQ 15 3727 85433
Fagnano Alto AQ 15 418 85851
Barisciano AQ 15 1828 87679
Prata d'Ansidonia AQ 17 496 88175
Pizzoli AQ 18 4326 92501
Fontecchio AQ 18 369 92870
Borgorose RI 19 4591 97461
Barete AQ 20 737 98198

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km S of L'Aquila (69753 inhabitants)
47 Km SW of Teramo (54892 inhabitants)
63 Km NE of Tivoli (56533 inhabitants)
63 Km W of Chieti (51815 inhabitants)
65 Km NE of Guidonia Montecelio (88673 inhabitants)
65 Km W of Montesilvano (53738 inhabitants)
69 Km W of Pescara (121014 inhabitants)
69 Km E of Terni (111501 inhabitants)
86 Km NE of Velletri (53303 inhabitants)
89 Km NE of Roma (2864731 inhabitants)
93 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 2.4
ML 2.5 		2009-04-06
18:34:36		 42.302 13.408 10 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 761979
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 18:34:36 ± 0.08
Latitude 42.3020 ± 0.0045
Longitude 13.4080 ± 0.0061
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 761979

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 540
Semi-minor axis of confidence ellipse (meter) 293
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 48
Circular confidence region, given by single value of horizontal uncertainty (meter) 707.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 69
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.01264
Number of stations at which the event was observed 50
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 761979
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:24:40

Md:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 761979
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:24:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAFI.HHE. 2009-04-06T18:35:27.26 10.0 undecidable manual Sg 0 0 0
IV.SACS.HHZ. 2009-04-06T18:35:22.07 10.0 undecidable manual Sg 0 0 0
IV.TOLF.HHZ. 2009-04-06T18:35:13.61 10.0 undecidable manual Sg 0 0 0
IV.RSM.SHZ. 2009-04-06T18:35:12.53 10.0 undecidable manual Pn 0 0 0
IV.BADI.EHZ. 2009-04-06T18:35:10.06 10.0 undecidable manual Sn 0 0 0
IV.PARC.HHZ. 2009-04-06T18:35:08.63 10.0 undecidable manual Pn 0 0 0
IV.BADI.EHZ. 2009-04-06T18:35:07.01 10.0 undecidable manual Pn 0 0 0
IV.MIDA.HHZ. 2009-04-06T18:35:07.02 0.1 undecidable manual Sg 136 101.121 0.763 69
IV.TRTR.HHE. 2009-04-06T18:35:06.55 10.0 undecidable manual Pn 0 0 0
IV.CAFI.HHE. 2009-04-06T18:35:06.25 10.0 undecidable manual Pg 0 0 0
IV.MA9.HHN. 2009-04-06T18:35:06.28 10.0 undecidable manual Pn 0 0 0
IV.RMP.HHN. 2009-04-06T18:35:05.48 10.0 undecidable manual Sg 0 0 0
IV.PIEI.HHE. 2009-04-06T18:35:05.69 10.0 undecidable manual Pg 0 0 0
IV.SACS.HHZ. 2009-04-06T18:35:04.30 10.0 undecidable manual Pg 0 0 0
IV.FSSB.SHZ. 2009-04-06T18:35:04.90 10.0 undecidable manual Pg 0 0 0
IV.RDP.BHE. 2009-04-06T18:35:04.19 10.0 undecidable manual Sg 0 0 0
IV.LATE.HHE. 2009-04-06T18:35:04.05 10.0 undecidable manual Pg 0 0 0
IV.ARVD.HHN. 2009-04-06T18:35:03.19 10.0 undecidable manual Pg 0 0 0
IV.AOI.HHZ. 2009-04-06T18:35:02.66 10.0 undecidable manual Pg 0 0 0
IV.CING.HHN. 2009-04-06T18:35:02.31 10.0 undecidable manual Pg 0 0 0
IV.FDMO.HHN. 2009-04-06T18:35:02.37 0.1 undecidable manual Sg 342 85.5477 0.255 83
IV.BSSO.HHE. 2009-04-06T18:35:02.64 10.0 undecidable manual Pg 0 0 0
IV.PTRJ.HHZ. 2009-04-06T18:35:02.50 10.0 undecidable manual Pg 0 0 0
IV.OFFI.HHE. 2009-04-06T18:35:01.75 10.0 undecidable manual Pg 0 0 0
IV.SGG.HHE. 2009-04-06T18:35:01.65 10.0 undecidable manual Pg 0 0 0
IV.CAFR.HHN. 2009-04-06T18:35:01.76 10.0 undecidable manual Pg 0 0 0
IV.TOLF.HHZ. 2009-04-06T18:35:00.19 10.0 undecidable manual Pg 0 0 0
IV.MGAB.HHZ. 2009-04-06T18:35:00.61 10.0 undecidable manual Pg 0 0 0
IV.VAGA.HHZ. 2009-04-06T18:35:00.22 10.0 undecidable manual Pg 0 0 0
IV.RFI.SHZ. 2009-04-06T18:35:00.44 10.0 undecidable manual Pg 0 0 0
IV.MSC.EHZ. 2009-04-06T18:35:00.63 10.0 undecidable manual Pg 0 0 0
IV.MURB.HHN. 2009-04-06T18:35:00.26 10.0 undecidable manual Pg 0 0 0
IV.SDI.SHZ. 2009-04-06T18:34:59.17 0.1 undecidable manual Sg 153 73.5708 0.268 85
IV.RDP.BHE. 2009-04-06T18:34:58.00 10.0 undecidable manual Pg 0 0 0
IV.NRCA.SHZ. 2009-04-06T18:34:56.33 0.6 undecidable manual Sg 338 63.6918 0.065 45
IV.SNTG.SHZ. 2009-04-06T18:34:55.26 0.1 undecidable manual Pg 340 112.3986 -0.197 80
IV.RMP.HHN. 2009-04-06T18:34:54.01 10.0 undecidable manual Pg 0 0 0
IV.ASSB.HHE. 2009-04-06T18:34:54.28 0.3 undecidable manual Pg 324 102.4197 0.362 59
IV.MIDA.HHZ. 2009-04-06T18:34:53.32 0.1 undecidable manual Pg 136 101.121 -0.402 78
IV.CERT.HHZ. 2009-04-06T18:34:53.16 0.1 undecidable manual Sg 222 52.503 -0.136 91
IV.CERA.HHZ. 2009-04-06T18:34:53.05 0.1 undecidable manual Pg 147 92.9403 0.59 75
IV.INTR.HHE. 2009-04-06T18:34:52.66 0.3 undecidable manual Sg 128 52.0035 -0.491 63
IV.RNI2.HHN. 2009-04-06T18:34:52.42 0.1 undecidable manual Pg 137 90.4428 0.352 81
IV.GIUL.HHZ. 2009-04-06T18:34:51.50 0.6 undecidable manual Pg 189 83.4498 0.503 40
IV.VVLD.HHZ. 2009-04-06T18:34:51.90 0.3 undecidable manual Sg 160 51.1155 -1.01 51
IV.FDMO.HHN. 2009-04-06T18:34:51.39 0.1 undecidable manual Pg 342 85.5477 0.063 87
IV.POFI.HHN. 2009-04-06T18:34:49.16 0.3 undecidable manual Pg 159 69.4749 0.309 64
IV.VCEL.EHZ. 2009-04-06T18:34:49.80 0.3 undecidable manual Sg 74 36.9297 0.675 61
IV.SDI.SHZ. 2009-04-06T18:34:49.40 0.1 undecidable manual Pg 153 73.5708 -0.076 89
IV.MTCE.HHZ. 2009-04-06T18:34:47.88 0.1 undecidable manual Pg 241 62.8926 0.054 91
IV.PTQR.SHZ. 2009-04-06T18:34:47.15 0.3 undecidable manual Sg 181 31.0467 -0.407 67
IV.GUAR.HHZ. 2009-04-06T18:34:47.73 0.1 undecidable manual Pg 188 56.7987 0.832 73
IV.NRCA.SHZ. 2009-04-06T18:34:47.93 0.1 undecidable manual Pg 338 63.6918 -0.02 91
IV.MNS.HHN. 2009-04-06T18:34:47.13 0.1 undecidable manual Pg 279 60.2952 -0.3 87
IV.CERT.HHZ. 2009-04-06T18:34:46.27 0.1 undecidable manual Pg 222 52.503 0.038 93
IV.FIAM.HHZ. 2009-04-06T18:34:45.67 0.1 undecidable manual Sg 261 24.1536 -0.011 98
IV.VVLD.HHZ. 2009-04-06T18:34:45.51 0.1 undecidable manual Pg 160 51.1155 -0.506 84
IV.INTR.HHE. 2009-04-06T18:34:45.81 0.1 undecidable manual Pg 128 52.0035 -0.339 87
.CAMP.---. 2009-04-06T18:34:45.53 0.3 undecidable manual Sg 0 25.9518 -0.661 62
IV.VCEL.EHZ. 2009-04-06T18:34:43.89 0.1 undecidable manual Pg 74 36.9297 0.064 95
IV.FIAM.HHZ. 2009-04-06T18:34:42.04 0.1 undecidable manual Pg 261 24.1536 0.198 95
IV.PTQR.SHZ. 2009-04-06T18:34:42.79 0.1 undecidable manual Pg 181 31.0467 -0.133 95
IV.FAGN.HHZ. 2009-04-06T18:34:42.57 0.1 undecidable manual Sg 105 14.9739 -0.293 94
.CAMP.---. 2009-04-06T18:34:41.84 0.1 undecidable manual Pg 0 25.9518 -0.292 92
IV.TERO.HHN. 2009-04-06T18:34:41.83 10.0 undecidable manual Pg 0 0 0
IV.FAGN.HHZ. 2009-04-06T18:34:40.21 0.1 undecidable manual Pg 105 14.9739 -0.002 100
MN.AQU.HHE. 2009-04-06T18:34:40.62 0.3 undecidable manual Sg 355 5.7942 -0.021 76
MN.AQU.HHE. 2009-04-06T18:34:39.06 0.1 undecidable manual Pg 355 5.7942 0.134 99
OE.WTTA.HHZ. 2009-04-06T18:34:24.79 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