Earthquake with magnitude of ML 2.2 on date 06-04-2009 and time 19:25:54 (Italy) in region 1 km W L'Aquila (AQ)

A magnitude ML 2.2 earthquake occured in region: 1 km W L'Aquila (AQ), on

  • 06-04-2009 17:25:54 (UTC)
  • 06-04-2009 19:25:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3470, 13.3860 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 1 69753 69753
Lucoli AQ 7 1011 70764
Tornimparte AQ 9 3187 73951
Ocre AQ 10 1167 75118
Fossa AQ 10 721 75839
Scoppito AQ 11 3727 79566
Pizzoli AQ 12 4326 83892
Sant'Eusanio Forconese AQ 13 394 84286
Poggio Picenze AQ 13 1136 85422
Barete AQ 15 737 86159
Rocca di Cambio AQ 15 533 86692
Villa Sant'Angelo AQ 15 424 87116
San Demetrio ne' Vestini AQ 16 1854 88970
Barisciano AQ 17 1828 90798
Cagnano Amiterno AQ 18 1369 92167
Fagnano Alto AQ 19 418 92585
Rocca di Mezzo AQ 19 1526 94111
Prata d'Ansidonia AQ 20 496 94607

Municipalities with at least 50000 inhabitants

An earthquake occurred to
1 Km W of L'Aquila (69753 inhabitants)
44 Km SW of Teramo (54892 inhabitants)
64 Km W of Chieti (51815 inhabitants)
64 Km NE of Tivoli (56533 inhabitants)
65 Km E of Terni (111501 inhabitants)
66 Km W of Montesilvano (53738 inhabitants)
67 Km NE of Guidonia Montecelio (88673 inhabitants)
69 Km W of Pescara (121014 inhabitants)
88 Km SE of Foligno (57155 inhabitants)
89 Km NE of Velletri (53303 inhabitants)
90 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 2.2 2009-04-06
17:25:54
42.347 13.386 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 761529
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 17:25:54 ± 0.19
Latitude 42.3470 ± 0.0108
Longitude 13.3860 ± 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 761529

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1366
Semi-minor axis of confidence ellipse (meter) 1009
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 295
Circular confidence region, given by single value of horizontal uncertainty (meter) 1843.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.69
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33904
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitude information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 761529
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:24:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
.PTQR.---. 2009-04-06T17:26:07.60 0.3 undecidable manual Sg 178 36.0417 0.35 69
.TERO.---. 2009-04-06T17:26:06.47 0.6 undecidable manual Sg 30 35.4423 -0.603 43
IV.LAV9.SHZ. 2009-04-06T17:26:05.80 10.0 undecidable manual Pg 0 0 0
.FIAM.HHN. 2009-04-06T17:26:03.20 0.3 undecidable manual Sg 248 23.754 -0.697 63
.VCEL.---. 2009-04-06T17:26:03.33 0.3 undecidable manual Pg 82 37.629 1.045 53
.CAMP.HHZ. 2009-04-06T17:26:02.75 0.3 undecidable manual Sg 5 21.0678 -0.282 72
.PTQR.---. 2009-04-06T17:26:02.26 0.3 undecidable manual Pg 178 36.0417 0.213 71
IV.FAGN.HHN. 2009-04-06T17:26:01.24 0.3 undecidable manual Sg 119 18.5703 -1.02 56
.TERO.---. 2009-04-06T17:26:01.74 0.3 undecidable manual Pg 30 35.4423 -0.207 72
.FIAM.HHN. 2009-04-06T17:26:00.03 0.1 undecidable manual Pg 248 23.754 -0.08 100
.CAMP.HHZ. 2009-04-06T17:25:59.71 0.1 undecidable manual Pg 5 21.0678 0.098 100
MN.AQU.HHN. 2009-04-06T17:25:59.02 0.1 undecidable manual Sg 59 1.4985 0.547 93
IV.FAGN.HHN. 2009-04-06T17:25:58.69 0.1 undecidable manual Pg 119 18.5703 -0.475 93
MN.AQU.HHN. 2009-04-06T17:25:57.65 0.1 undecidable manual Pg 59 1.4985 0.668 89
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