Earthquake with magnitude of Md 1.5 on date 09-08-2009 and time 09:26:34 (UTC) in region 8 km E L'Aquila (AQ)

A magnitude Md 1.5 earthquake occured in region: 8 km E L'Aquila (AQ), on

  • 09-08-2009 09:26:34 (UTC)
  • 09-08-2009 11:26:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3800, 13.4860 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 8 69753 69753
Poggio Picenze AQ 8 1136 70889
Fossa AQ 10 721 71610
Barisciano AQ 10 1828 73438
Sant'Eusanio Forconese AQ 11 394 73832
Ocre AQ 11 1167 74999
San Demetrio ne' Vestini AQ 12 1854 76853
Villa Sant'Angelo AQ 13 424 77277
Santo Stefano di Sessanio AQ 14 111 77388
Prata d'Ansidonia AQ 15 496 77884
Lucoli AQ 16 1011 78895
Fagnano Alto AQ 16 418 79313
Rocca di Cambio AQ 16 533 79846
Pizzoli AQ 17 4326 84172
Pietracamela TE 17 271 84443
San Pio delle Camere AQ 17 661 85104
Tornimparte AQ 18 3187 88291
Calascio AQ 18 137 88428
Castelvecchio Calvisio AQ 18 153 88581
Barete AQ 19 737 89318
Carapelle Calvisio AQ 19 87 89405
Scoppito AQ 19 3727 93132
Crognaleto TE 19 1297 94429
Rocca di Mezzo AQ 19 1526 95955
Fontecchio AQ 19 369 96324
Fano Adriano TE 20 296 96620
Castel del Monte AQ 20 413 97033
Isola del Gran Sasso d'Italia TE 20 4773 101806

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km E of L'Aquila (69753 inhabitants)
36 Km SW of Teramo (54892 inhabitants)
56 Km W of Chieti (51815 inhabitants)
57 Km W of Montesilvano (53738 inhabitants)
61 Km W of Pescara (121014 inhabitants)
72 Km E of Terni (111501 inhabitants)
73 Km NE of Tivoli (56533 inhabitants)
75 Km NE of Guidonia Montecelio (88673 inhabitants)
91 Km SE of Foligno (57155 inhabitants)
97 Km NE of Velletri (53303 inhabitants)
99 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 1.5 2009-08-09
09:26:34
42.38 13.486 8 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 945299
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-08-09 09:26:34 ± 0.45
Latitude 42.3800 ± 0.0270
Longitude 13.4860 ± 0.0365
Depth (km) 8 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 945299

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 4105
Semi-minor axis of confidence ellipse (meter) 895
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 315
Circular confidence region, given by single value of horizontal uncertainty (meter) 4242.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 227
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.25811
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 3
Magnitude information

Md:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 945299
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 18:01:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BOB.HHN. 2009-08-09T09:27:08.10 10.0 undecidable manual Pg 0 0 0
IV.DOI.HHE. 2009-08-09T09:27:04.63 10.0 undecidable manual Pg 0 0 0
IV.VCEL.EHZ. 2009-08-09T09:27:02.17 10.0 undecidable manual Sg 0 0 0
IV.VCEL.EHZ. 2009-08-09T09:27:00.06 10.0 undecidable manual Pg 0 0 0
IV.TERO.HHE. 2009-08-09T09:26:45.61 0.6 undecidable manual Sg 20 28.6491 0.456 46
IV.TERO.HHE. 2009-08-09T09:26:40.28 0.3 undecidable manual Pg 20 28.6491 -0.517 67
IV.T0104.EHZ. 2009-08-09T09:26:39.82 0.3 undecidable manual Sg 260 12.2766 -0.122 75
MN.AQU.HHZ. 2009-08-09T09:26:38.56 0.3 undecidable manual Sg 247 7.4814 -0.085 77
IV.T0104.EHZ. 2009-08-09T09:26:37.92 0.3 undecidable manual Pg 260 12.2766 0.133 75
MN.AQU.HHZ. 2009-08-09T09:26:37.23 0.1 undecidable manual Pg 247 7.4814 0.191 100
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