Earthquake with magnitude of ML 1.5 on date 11-08-2009 and time 10:24:04 (UTC) in region 5 km W L'Aquila (AQ)

A magnitude ML 1.5 earthquake occured in region: 5 km W L'Aquila (AQ), on

  • 11-08-2009 10:24:04 (UTC)
  • 11-08-2009 12:24:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3540, 13.3380 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 5 69753 69753
Scoppito AQ 7 3727 73480
Lucoli AQ 7 1011 74491
Tornimparte AQ 8 3187 77678
Pizzoli AQ 10 4326 82004
Barete AQ 12 737 82741
Ocre AQ 14 1167 83908
Fossa AQ 14 721 84629
Cagnano Amiterno AQ 15 1369 85998
Sant'Eusanio Forconese AQ 17 394 86392
Poggio Picenze AQ 17 1136 87528
Rocca di Cambio AQ 18 533 88061
Capitignano AQ 19 665 88726
Villa Sant'Angelo AQ 19 424 89150
San Demetrio ne' Vestini AQ 20 1854 91004
Borgorose RI 20 4591 95595
Fiamignano RI 20 1413 97008

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km W of L'Aquila (69753 inhabitants)
45 Km SW of Teramo (54892 inhabitants)
61 Km E of Terni (111501 inhabitants)
62 Km NE of Tivoli (56533 inhabitants)
64 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)
85 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
Md 1.7
ML 1.5
2009-08-11
10:24:04
42.354 13.338 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 946459
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-08-11 10:24:04 ± 0.11
Latitude 42.3540 ± 0.0072
Longitude 13.3380 ± 0.0122
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 946459

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1085
Semi-minor axis of confidence ellipse (meter) 618
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 119
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) 177
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.48294
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 946459
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 18:03:20

Md:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 946459
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 18:03:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CERT.HHN. 2009-08-11T10:24:20.90 0.1 undecidable manual Sg 213 53.6019 -0.062 94
IV.LNSS.HHE. 2009-08-11T10:24:16.66 0.1 undecidable manual Sg 319 36.8298 0.187 94
IV.TERO.HHE. 2009-08-11T10:24:16.44 0.1 undecidable manual Sg 36 36.9297 -0.045 97
IV.CERT.HHN. 2009-08-11T10:24:13.87 0.1 undecidable manual Pg 213 53.6019 0.079 93
IV.TERO.HHE. 2009-08-11T10:24:11.26 0.1 undecidable manual Pg 36 36.9297 0.052 97
IV.LNSS.HHE. 2009-08-11T10:24:10.87 0.1 undecidable manual Pg 319 36.8298 -0.331 91
IV.T0104.EHZ. 2009-08-11T10:24:07.37 0.1 undecidable manual Sg 358 0.6993 -0.195 100
IV.T0104.EHZ. 2009-08-11T10:24:06.37 0.1 undecidable manual Pg 358 0.6993 0.312 98
IV.MNO.SHZ. 2009-08-11T10:23:49.90 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