Earthquake with magnitude of ML 2.2 on date 06-04-2009 and time 20:52:51 (Italy) in region 3 km S L'Aquila (AQ)

A magnitude ML 2.2 earthquake occured in region: 3 km S L'Aquila (AQ), on

  • 06-04-2009 18:52:51 (UTC)
  • 06-04-2009 20:52:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3230, 13.4050 at 9 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 3 69753 69753
Lucoli AQ 7 1011 70764
Ocre AQ 7 1167 71931
Fossa AQ 8 721 72652
Tornimparte AQ 9 3187 75839
Sant'Eusanio Forconese AQ 11 394 76233
Poggio Picenze AQ 11 1136 77369
Rocca di Cambio AQ 12 533 77902
Villa Sant'Angelo AQ 12 424 78326
San Demetrio ne' Vestini AQ 13 1854 80180
Scoppito AQ 13 3727 83907
Barisciano AQ 15 1828 85735
Pizzoli AQ 16 4326 90061
Rocca di Mezzo AQ 16 1526 91587
Fagnano Alto AQ 16 418 92005
Prata d'Ansidonia AQ 17 496 92501
Barete AQ 18 737 93238
Fontecchio AQ 20 369 93607

Municipalities with at least 50000 inhabitants

An earthquake occurred to
3 Km S of L'Aquila (69753 inhabitants)
45 Km SW of Teramo (54892 inhabitants)
63 Km W of Chieti (51815 inhabitants)
64 Km NE of Tivoli (56533 inhabitants)
65 Km W of Montesilvano (53738 inhabitants)
66 Km NE of Guidonia Montecelio (88673 inhabitants)
68 Km E of Terni (111501 inhabitants)
68 Km W of Pescara (121014 inhabitants)
88 Km NE of Velletri (53303 inhabitants)
90 Km NE of Roma (2864731 inhabitants)
91 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
ML 2.2 2009-04-06
18:52:51
42.323 13.405 9 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 762069
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 18:52:51 ± 0.12
Latitude 42.3230 ± 0.0072
Longitude 13.4050 ± 0.0122
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 762069

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 945
Semi-minor axis of confidence ellipse (meter) 606
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 71
Circular confidence region, given by single value of horizontal uncertainty (meter) 1280.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.55
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.55308
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 9
Magnitude information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 762069
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:24:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SBPO.HHE. 2009-04-06T18:53:34.18 10.0 undecidable manual Pg 0 0 0
.NRCA.SHZ. 2009-04-06T18:53:10.73 0.6 undecidable manual Sg 337 61.3941 -0.036 47
IV.VVLD.HHN. 2009-04-06T18:53:08.46 0.3 undecidable manual Sg 160 53.4021 -0.157 70
IV.PTQR.SHZ. 2009-04-06T18:53:03.66 0.3 undecidable manual Sg 181 33.4443 0.374 69
.TERO.HHZ. 2009-04-06T18:53:03.73 1.0 undecidable manual Sg 26 37.0296 -0.518 22
IV.VVLD.HHN. 2009-04-06T18:53:02.39 0.3 undecidable manual Pg 160 53.4021 1.034 52
.NRCA.SHZ. 2009-04-06T18:53:02.69 0.6 undecidable manual Pg 337 61.3941 0.092 47
.FIAM.---. 2009-04-06T18:53:00.10 0.6 undecidable manual Sg 256 24.4533 -0.364 47
.CAMP.---. 2009-04-06T18:52:59.90 0.3 undecidable manual Sg 1 23.5542 -0.299 72
.TERO.HHZ. 2009-04-06T18:52:58.14 0.6 undecidable manual Pg 26 37.0296 -0.691 41
.VCEL.---. 2009-04-06T18:52:58.93 0.3 undecidable manual Pg 77 36.5412 0.17 72
IV.PTQR.SHZ. 2009-04-06T18:52:57.58 0.3 undecidable manual Pg 181 33.4443 -0.698 62
.CAMP.---. 2009-04-06T18:52:57.33 0.3 undecidable manual Pg 1 23.5542 0.833 60
IV.FAGN.HHZ. 2009-04-06T18:52:57.23 0.3 undecidable manual Sg 113 15.9729 -0.559 68
.FIAM.---. 2009-04-06T18:52:56.47 0.1 undecidable manual Pg 256 24.4533 -0.181 98
IV.FAGN.HHZ. 2009-04-06T18:52:55.26 0.3 undecidable manual Pg 113 15.9729 0.155 75
MN.AQU.HHN. 2009-04-06T18:52:54.89 0.3 undecidable manual Sg 355 3.3966 0.126 77
MN.AQU.HHN. 2009-04-06T18:52:53.61 0.1 negative manual Pg 355 3.3966 0.251 100
IV.ORI.EHZ. 2009-04-06T18:52:48.72 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