Earthquake with magnitude of ML 2.5 on date 06-04-2009 and time 05:27:22 (UTC) in region 6 km NW L'Aquila (AQ)

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

  • 06-04-2009 05:27:22 (UTC)
  • 06-04-2009 07:27:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3870, 13.3460 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.

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
Pizzoli AQ 7 4326 74079
Scoppito AQ 8 3727 77806
Barete AQ 9 737 78543
Lucoli AQ 11 1011 79554
Tornimparte AQ 11 3187 82741
Cagnano Amiterno AQ 13 1369 84110
Capitignano AQ 15 665 84775
Ocre AQ 16 1167 85942
Fossa AQ 16 721 86663
Montereale AQ 17 2581 89244
Poggio Picenze AQ 18 1136 90380
Sant'Eusanio Forconese AQ 18 394 90774
Campotosto AQ 19 542 91316

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km NW of L'Aquila (69753 inhabitants)
42 Km SW of Teramo (54892 inhabitants)
61 Km E of Terni (111501 inhabitants)
65 Km NE of Tivoli (56533 inhabitants)
67 Km NE of Guidonia Montecelio (88673 inhabitants)
68 Km W of Montesilvano (53738 inhabitants)
68 Km W of Chieti (51815 inhabitants)
72 Km W of Pescara (121014 inhabitants)
82 Km SE of Foligno (57155 inhabitants)
90 Km NE of Roma (2864731 inhabitants)
91 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 2.5 2009-04-06
05:27:22
42.387 13.346 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 757129
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 05:27:22 ± 0.14
Latitude 42.3870 ± 0.0063
Longitude 13.3460 ± 0.0170
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 757129

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1402
Semi-minor axis of confidence ellipse (meter) 578
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 84
Circular confidence region, given by single value of horizontal uncertainty (meter) 1565.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 127
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 17
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) 0.99465
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 10
Magnitude information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 757129
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:19:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LPEL.HHZ. 2009-04-06T05:30:19.80 10.0 undecidable manual Sg 0 0 0
IV.VMG.SHZ. 2009-04-06T05:29:34.72 10.0 undecidable manual Pg 0 0 0
IV.SFI.EHN. 2009-04-06T05:29:34.79 10.0 undecidable manual Pg 0 0 0
IV.ASQU.HHN. 2009-04-06T05:29:33.68 10.0 undecidable manual Pg 0 0 0
IV.MCRV.HHZ. 2009-04-06T05:29:23.64 10.0 undecidable manual Pg 0 0 0
IV.CIGN.HHN. 2009-04-06T05:29:23.42 10.0 undecidable manual Pg 0 0 0
IV.PIEI.HHZ. 2009-04-06T05:29:22.46 10.0 undecidable manual Pg 0 0 0
IV.MGAB.HHN. 2009-04-06T05:29:18.42 10.0 undecidable manual Pg 0 0 0
IV.GIUL.HHN. 2009-04-06T05:28:57.04 10.0 undecidable manual Pg 0 0 0
IV.VVLD.HHZ. 2009-04-06T05:28:53.04 10.0 undecidable manual Pg 0 0 0
IV.LPEL.HHZ. 2009-04-06T05:28:50.97 10.0 undecidable manual Pg 0 0 0
IV.RDP.BHN. 2009-04-06T05:28:34.04 10.0 undecidable manual Pg 0 0 0
IV.FDMO.HHZ. 2009-04-06T05:27:46.02 0.3 undecidable manual Sg 344 75.0693 0.694 57
IV.CING.HHE. 2009-04-06T05:27:41.73 0.6 undecidable manual Pg 354 110.4006 0.555 37
.NRCA.---. 2009-04-06T05:27:39.45 0.6 undecidable manual Sg 339 53.1024 0.008 47
.PTQR.---. 2009-04-06T05:27:35.92 0.6 undecidable manual Sg 174 40.7259 -0.222 46
IV.FDMO.HHZ. 2009-04-06T05:27:35.64 0.3 undecidable manual Pg 344 75.0693 -0.099 66
.OFFI.HHN. 2009-04-06T05:27:35.43 0.3 undecidable manual Pg 24 66.8775 0.966 51
IV.TERO.HHZ. 2009-04-06T05:27:33.57 0.3 undecidable manual Sg 39 33.6441 -0.679 61
IV.CERT.HHZ. 2009-04-06T05:27:32.61 0.1 undecidable manual Pg 212 57.0984 -0.347 87
.NRCA.---. 2009-04-06T05:27:32.13 0.3 undecidable manual Pg 339 53.1024 -0.212 68
.FAGN.HHN. 2009-04-06T05:27:31.97 0.6 undecidable manual Sg 124 23.6541 0.381 46
.PTQR.---. 2009-04-06T05:27:30.22 0.1 undecidable manual Pg 174 40.7259 -0.216 92
.CAMP.---. 2009-04-06T05:27:29.33 0.3 undecidable manual Sg 17 17.3715 -0.306 71
.FAGN.HHN. 2009-04-06T05:27:28.30 0.3 undecidable manual Pg 124 23.6541 0.492 67
IV.TERO.HHZ. 2009-04-06T05:27:28.91 0.1 undecidable manual Pg 39 33.6441 -0.435 89
.AQU.HHZ. 2009-04-06T05:27:26.76 0.3 undecidable manual Sg 129 5.7942 0.009 77
.CAMP.---. 2009-04-06T05:27:26.66 0.1 undecidable manual Pg 17 17.3715 -0.021 100
.AQU.HHZ. 2009-04-06T05:27:25.26 0.1 undecidable manual Pg 129 5.7942 0.245 97
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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