Earthquake with magnitude of ML 1.0 on date 07-02-2009 and time 00:33:56 (Italy) in region 5 km W L'Aquila (AQ)

A magnitude ML 1.0 earthquake occured in region: 5 km W L'Aquila (AQ), on

  • 06-02-2009 23:33:56 (UTC)
  • 07-02-2009 00:33:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.3440, 13.3400 at 8 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 5 69753 69753
Lucoli AQ 6 1011 70764
Tornimparte AQ 7 3187 73951
Scoppito AQ 8 3727 77678
Pizzoli AQ 11 4326 82004
Ocre AQ 13 1167 83171
Barete AQ 13 737 83908
Fossa AQ 13 721 84629
Cagnano Amiterno AQ 16 1369 85998
Sant'Eusanio Forconese AQ 16 394 86392
Poggio Picenze AQ 17 1136 87528
Rocca di Cambio AQ 17 533 88061
Villa Sant'Angelo AQ 18 424 88485
Borgorose RI 19 4591 93076
San Demetrio ne' Vestini AQ 19 1854 94930
Fiamignano RI 20 1413 96343
Capitignano AQ 20 665 97008

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km W of L'Aquila (69753 inhabitants)
46 Km SW of Teramo (54892 inhabitants)
61 Km NE of Tivoli (56533 inhabitants)
62 Km E of Terni (111501 inhabitants)
63 Km NE of Guidonia Montecelio (88673 inhabitants)
68 Km W of Chieti (51815 inhabitants)
69 Km W of Montesilvano (53738 inhabitants)
73 Km W of Pescara (121014 inhabitants)
86 Km SE of Foligno (57155 inhabitants)
87 Km NE of Roma (2864731 inhabitants)
87 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 1.0 2009-02-06
23:33:56
42.344 13.34 8 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 742629
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-02-06 23:33:56 ± 0.13
Latitude 42.3440 ± 0.0054
Longitude 13.3400 ± 0.0207
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 742629

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1689
Semi-minor axis of confidence ellipse (meter) 632
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 88
Circular confidence region, given by single value of horizontal uncertainty (meter) 1802.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 148
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.51621
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.7
Num. used stations
Type of magnitude ML
Reference to an origin 742629
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:02:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ZCCA.HHZ. 2009-02-06T23:34:20.80 10.0 undecidable manual Pg 0 0 0
IV.NRCA.SHZ. 2009-02-06T23:34:14.89 0.1 undecidable manual Sg 341 57.2982 0.219 93
IV.LNSS.HHE. 2009-02-06T23:34:09.48 0.3 undecidable manual Sg 320 37.7289 0.035 75
IV.PTQR.SHZ. 2009-02-06T23:34:08.98 0.1 undecidable manual Sg 172 36.0417 -0.02 100
IV.NRCA.SHZ. 2009-02-06T23:34:06.44 0.1 undecidable manual Pg 341 57.2982 -0.438 89
IV.CAMP.HHZ. 2009-02-06T23:34:04.82 0.3 undecidable manual Sg 15 21.9669 0.468 70
IV.FAGN.HHE. 2009-02-06T23:34:04.52 0.3 undecidable manual Sg 113 21.867 0.234 75
IV.LNSS.HHE. 2009-02-06T23:34:03.82 0.3 undecidable manual Pg 320 37.7289 -0.036 76
IV.PTQR.SHZ. 2009-02-06T23:34:03.96 0.1 undecidable manual Pg 172 36.0417 0.361 94
IV.CAMP.HHZ. 2009-02-06T23:34:00.57 0.1 undecidable manual Pg 15 21.9669 -0.348 97
IV.FAGN.HHE. 2009-02-06T23:34:00.57 0.1 undecidable manual Pg 113 21.867 -0.311 97
MN.AQU.HHZ. 2009-02-06T23:33:59.20 0.1 undecidable manual Sg 78 5.1948 -0.335 100
MN.AQU.HHZ. 2009-02-06T23:33:58.56 0.1 negative manual Pg 78 5.1948 0.424 97
IV.FNVD.HHE. 2009-02-06T23:33:55.77 10.0 undecidable manual Pg 0 0 0
IV.GRI.EHZ. 2009-02-06T23:33:55.56 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