Earthquake with magnitude of ML 0.8 on date 07-08-2009 and time 02:52:06 (Italy) in region 6 km N L'Aquila (AQ)

A magnitude ML 0.8 earthquake occured in region: 6 km N L'Aquila (AQ), on

  • 07-08-2009 00:52:06 (UTC)
  • 07-08-2009 02:52:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4080, 13.4060 at 1 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 10 4326 74079
Barete AQ 11 737 74816
Scoppito AQ 13 3727 78543
Lucoli AQ 14 1011 79554
Fossa AQ 14 721 80275
Poggio Picenze AQ 15 1136 81411
Ocre AQ 15 1167 82578
Capitignano AQ 15 665 83243
Tornimparte AQ 16 3187 86430
Cagnano Amiterno AQ 16 1369 87799
Sant'Eusanio Forconese AQ 16 394 88193
Crognaleto TE 17 1297 89490
Campotosto AQ 17 542 90032
Barisciano AQ 18 1828 91860
Pietracamela TE 18 271 92131
San Demetrio ne' Vestini AQ 18 1854 93985
Montereale AQ 19 2581 96566
Villa Sant'Angelo AQ 19 424 96990
Fano Adriano TE 19 296 97286

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km N of L'Aquila (69753 inhabitants)
37 Km SW of Teramo (54892 inhabitants)
62 Km W of Montesilvano (53738 inhabitants)
63 Km W of Chieti (51815 inhabitants)
65 Km E of Terni (111501 inhabitants)
67 Km W of Pescara (121014 inhabitants)
70 Km NE of Tivoli (56533 inhabitants)
72 Km NE of Guidonia Montecelio (88673 inhabitants)
84 Km SE of Foligno (57155 inhabitants)
95 Km NE of Roma (2864731 inhabitants)
95 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
Md 1.7
ML 0.8
2009-08-07
00:52:06
42.408 13.406 1 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 943909
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-08-07 00:52:06 ± 0.26
Latitude 42.4080 ± 0.0099
Longitude 13.4060 ± 0.0061
Depth (km) 1 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 943909

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1196
Semi-minor axis of confidence ellipse (meter) 526
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 1
Circular confidence region, given by single value of horizontal uncertainty (meter) 1208.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 271
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.19335
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 943909
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 18:00:12

Md:1.7

Field Value
Value 1.7
Uncertainty 0.0
Num. used stations
Type of magnitude Md
Reference to an origin 943909
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 18:00:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FAGN.HHE. 2009-08-07T00:52:14.25 0.1 undecidable manual Sg 137 21.4674 0.117 96
IV.FAGN.HHE. 2009-08-07T00:52:11.00 0.1 undecidable manual Pg 137 21.4674 0.019 98
IV.T0104.EHZ. 2009-08-07T00:52:09.54 0.1 undecidable manual Sg 226 7.6812 0.159 98
IV.T0104.EHZ. 2009-08-07T00:52:08.19 0.1 undecidable manual Pg 226 7.6812 -0.041 100
MN.AQU.HHZ. 2009-08-07T00:52:08.69 0.1 undecidable manual Sg 183 5.994 -0.096 99
MN.AQU.HHZ. 2009-08-07T00:52:07.74 0.1 undecidable manual Pg 183 5.994 -0.153 98
IV.MELA.HHE. 2009-08-07T00:52:02.44 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