Earthquake with magnitude of ML 1.1 on date 12-07-2009 and time 22:02:15 (UTC) in region 2 km W L'Aquila (AQ)

A magnitude ML 1.1 earthquake occured in region: 2 km W L'Aquila (AQ), on

  • 12-07-2009 22:02:15 (UTC)
  • 13-07-2009 00:02:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3510, 13.3690 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 3 69753 69753
Lucoli AQ 7 1011 70764
Tornimparte AQ 9 3187 73951
Scoppito AQ 10 3727 77678
Ocre AQ 11 1167 78845
Pizzoli AQ 11 4326 83171
Fossa AQ 12 721 83892
Barete AQ 13 737 84629
Sant'Eusanio Forconese AQ 15 394 85023
Poggio Picenze AQ 15 1136 86159
Rocca di Cambio AQ 16 533 86692
Villa Sant'Angelo AQ 17 424 87116
Cagnano Amiterno AQ 17 1369 88485
San Demetrio ne' Vestini AQ 17 1854 90339
Barisciano AQ 19 1828 92167
Capitignano AQ 20 665 92832

Municipalities with at least 50000 inhabitants

An earthquake occurred to
3 Km W of L'Aquila (69753 inhabitants)
44 Km SW of Teramo (54892 inhabitants)
64 Km E of Terni (111501 inhabitants)
64 Km NE of Tivoli (56533 inhabitants)
66 Km W of Chieti (51815 inhabitants)
66 Km NE of Guidonia Montecelio (88673 inhabitants)
67 Km W of Montesilvano (53738 inhabitants)
71 Km W of Pescara (121014 inhabitants)
87 Km SE of Foligno (57155 inhabitants)
89 Km NE of Velletri (53303 inhabitants)
89 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
Md 2.0
ML 1.1
2009-07-12
22:02:15
42.351 13.369 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 924259
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-07-12 22:02:15 ± 0.12
Latitude 42.3510 ± 0.0099
Longitude 13.3690 ± 0.0085
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 924259

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1156
Semi-minor axis of confidence ellipse (meter) 644
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 173
Circular confidence region, given by single value of horizontal uncertainty (meter) 1303.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 162
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.35074
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 924259
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 17:36:19

Md:2.0

Field Value
Value 2.0
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 924259
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 17:36:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LNSS.HHN. 2009-07-12T22:02:28.60 0.3 undecidable manual Sg 316 38.7279 0.266 67
IV.VCEL.EHZ. 2009-07-12T22:02:28.89 0.3 undecidable manual Sg 83 38.9277 0.491 64
IV.STR3.BHZ. 2009-07-12T22:02:27.04 10.0 undecidable manual Pg 0 0 0
IV.SAN2.EHZ. 2009-07-12T22:02:26.78 0.1 undecidable manual Sg 347 31.746 0.302 90
IV.TERO.HHE. 2009-07-12T22:02:26.88 0.1 undecidable manual Sg 32 35.742 -0.656 81
IV.PTQR.SHZ. 2009-07-12T22:02:26.65 10.0 undecidable manual Pg 0 0 0
IV.FIAM.HHZ. 2009-07-12T22:02:23.69 0.1 undecidable manual Sg 246 22.5552 -0.285 92
IV.VCEL.EHZ. 2009-07-12T22:02:22.82 0.3 undecidable manual Pg 83 38.9277 -0.068 70
IV.LNSS.HHN. 2009-07-12T22:02:22.90 0.3 undecidable manual Pg 316 38.7279 0.047 70
IV.TERO.HHE. 2009-07-12T22:02:21.94 0.3 undecidable manual Pg 32 35.742 -0.454 65
IV.SAN2.EHZ. 2009-07-12T22:02:21.82 0.3 undecidable manual Pg 347 31.746 0.041 71
IV.FIAM.HHZ. 2009-07-12T22:02:20.33 0.1 undecidable manual Pg 246 22.5552 -0.004 97
MN.AQU.HHZ. 2009-07-12T22:02:19.01 0.1 undecidable manual Sg 84 2.7972 -0.041 100
IV.T0104.EHZ. 2009-07-12T22:02:18.99 0.1 undecidable manual Sg 291 2.6973 -0.05 100
MN.AQU.HHZ. 2009-07-12T22:02:17.71 0.1 undecidable manual Pg 84 2.7972 0.221 96
IV.T0104.EHZ. 2009-07-12T22:02:17.73 0.1 undecidable manual Pg 291 2.6973 0.241 96
IV.SBPO.HHE. 2009-07-12T22:01:51.50 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download