Earthquake with magnitude of Md 1.3 on date 05-05-2009 and time 11:12:13 (Italy) in region 4 km SE L'Aquila (AQ)

A magnitude Md 1.3 earthquake occured in region: 4 km SE L'Aquila (AQ), on

  • 05-05-2009 09:12:13 (UTC)
  • 05-05-2009 11:12:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3230, 13.4220 at 7 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
Ocre AQ 6 1167 70920
Fossa AQ 6 721 71641
Lucoli AQ 8 1011 72652
Sant'Eusanio Forconese AQ 9 394 73046
Poggio Picenze AQ 10 1136 74182
Tornimparte AQ 11 3187 77369
Rocca di Cambio AQ 11 533 77902
Villa Sant'Angelo AQ 11 424 78326
San Demetrio ne' Vestini AQ 12 1854 80180
Barisciano AQ 14 1828 82008
Scoppito AQ 15 3727 85735
Fagnano Alto AQ 15 418 86153
Rocca di Mezzo AQ 15 1526 87679
Prata d'Ansidonia AQ 16 496 88175
Pizzoli AQ 16 4326 92501
Fontecchio AQ 18 369 92870
Barete AQ 18 737 93607
Santo Stefano di Sessanio AQ 19 111 93718
San Pio delle Camere AQ 20 661 94379

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km SE of L'Aquila (69753 inhabitants)
44 Km SW of Teramo (54892 inhabitants)
61 Km W of Chieti (51815 inhabitants)
64 Km W of Montesilvano (53738 inhabitants)
65 Km NE of Tivoli (56533 inhabitants)
67 Km W of Pescara (121014 inhabitants)
68 Km NE of Guidonia Montecelio (88673 inhabitants)
69 Km E of Terni (111501 inhabitants)
89 Km NE of Velletri (53303 inhabitants)
91 Km NE of Roma (2864731 inhabitants)
92 Km SE of Foligno (57155 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 1.3 2009-05-05
09:12:13
42.323 13.422 7 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 851189
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-05-05 09:12:13 ± 0.45
Latitude 42.3230 ± 0.0198
Longitude 13.4220 ± 0.0268
Depth (km) 7 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 851189

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2632
Semi-minor axis of confidence ellipse (meter) 1684
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 314
Circular confidence region, given by single value of horizontal uncertainty (meter) 3111.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 304
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) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.03417
Epicentral distance of station farthest from the epicenter (degree) 0.21314
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 851189
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 16:09:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAMP.HHN. 2009-05-05T09:12:22.59 0.6 undecidable manual Sg 357 23.6541 0.187 47
IV.CAMP.HHN. 2009-05-05T09:12:18.85 0.1 undecidable manual Pg 357 23.6541 0.061 96
IV.T0104.EHE. 2009-05-05T09:12:17.46 0.3 undecidable manual Sg 301 7.9809 -0.077 74
MN.AQU.HHE. 2009-05-05T09:12:16.07 0.3 undecidable manual Sg 334 3.7962 -0.544 67
IV.T0104.EHE. 2009-05-05T09:12:16.29 0.1 undecidable manual Pg 301 7.9809 0.307 93
MN.AQU.HHE. 2009-05-05T09:12:15.43 0.1 undecidable manual Pg 334 3.7962 -0.018 100
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