Earthquake with magnitude of ML 0.3 on date 08-05-2009 and time 02:37:51 (Italy) in region 4 km NW L'Aquila (AQ)

A magnitude ML 0.3 earthquake occured in region: 4 km NW L'Aquila (AQ), on

  • 08-05-2009 00:37:51 (UTC)
  • 08-05-2009 02:37:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3800, 13.3780 at 6 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 4 69753 69753
Pizzoli AQ 9 4326 74079
Scoppito AQ 10 3727 77806
Lucoli AQ 10 1011 78817
Barete AQ 11 737 79554
Tornimparte AQ 12 3187 82741
Ocre AQ 13 1167 83908
Fossa AQ 13 721 84629
Poggio Picenze AQ 15 1136 85765
Cagnano Amiterno AQ 15 1369 87134
Sant'Eusanio Forconese AQ 16 394 87528
Capitignano AQ 17 665 88193
Villa Sant'Angelo AQ 18 424 88617
San Demetrio ne' Vestini AQ 18 1854 90471
Rocca di Cambio AQ 18 533 91004
Barisciano AQ 19 1828 92832
Montereale AQ 19 2581 95413
Campotosto AQ 20 542 95955

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km NW of L'Aquila (69753 inhabitants)
41 Km SW of Teramo (54892 inhabitants)
63 Km E of Terni (111501 inhabitants)
65 Km W of Chieti (51815 inhabitants)
65 Km W of Montesilvano (53738 inhabitants)
66 Km NE of Tivoli (56533 inhabitants)
68 Km NE of Guidonia Montecelio (88673 inhabitants)
69 Km W of Pescara (121014 inhabitants)
85 Km SE of Foligno (57155 inhabitants)
91 Km NE of Roma (2864731 inhabitants)
92 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 1.5
ML 0.3
2009-05-08
00:37:51
42.38 13.378 6 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 855319
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-05-08 00:37:51 ± 0.13
Latitude 42.3800 ± 0.0027
Longitude 13.3780 ± 0.0049
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 855319

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 380
Semi-minor axis of confidence ellipse (meter) 250
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 279
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 137
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0.03148
Epicentral distance of station farthest from the epicenter (degree) 0.15738
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 855319
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 16:13:53

Md:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 855319
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 16:13:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAMP.HHZ. 2009-05-08T00:37:58.13 0.1 undecidable manual Sg 8 17.4714 0.041 97
IV.CAMP.HHZ. 2009-05-08T00:37:55.28 0.3 undecidable manual Pg 8 17.4714 -0.097 72
MN.AQU.HHZ. 2009-05-08T00:37:54.06 0.1 undecidable manual Sg 145 3.4965 -0.013 100
IV.T0104.EHZ. 2009-05-08T00:37:54.12 0.1 undecidable manual Sg 236 3.8961 -0.028 100
MN.AQU.HHZ. 2009-05-08T00:37:53.08 0.1 undecidable manual Pg 145 3.4965 0.022 100
IV.T0104.EHZ. 2009-05-08T00:37:53.15 0.1 undecidable manual Pg 236 3.8961 0.048 99
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