Earthquake with magnitude of ML 2.1 on date 10-04-2009 and time 10:45:08 (Italy) in region 2 km NW L'Aquila (AQ)

A magnitude ML 2.1 earthquake occured in region: 2 km NW L'Aquila (AQ), on

  • 10-04-2009 08:45:08 (UTC)
  • 10-04-2009 10:45:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3650, 13.3820 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 2 69753 69753
Lucoli AQ 9 1011 70764
Scoppito AQ 10 3727 74491
Tornimparte AQ 11 3187 77678
Pizzoli AQ 11 4326 82004
Ocre AQ 12 1167 83171
Fossa AQ 12 721 83892
Barete AQ 13 737 84629
Poggio Picenze AQ 14 1136 85765
Sant'Eusanio Forconese AQ 15 394 86159
Villa Sant'Angelo AQ 17 424 86583
Cagnano Amiterno AQ 17 1369 87952
Rocca di Cambio AQ 17 533 88485
San Demetrio ne' Vestini AQ 17 1854 90339
Barisciano AQ 18 1828 92167
Capitignano AQ 19 665 92832

Municipalities with at least 50000 inhabitants

An earthquake occurred to
2 Km NW of L'Aquila (69753 inhabitants)
42 Km SW of Teramo (54892 inhabitants)
64 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)
67 Km NE of Guidonia Montecelio (88673 inhabitants)
69 Km W of Pescara (121014 inhabitants)
86 Km SE of Foligno (57155 inhabitants)
90 Km NE of Velletri (53303 inhabitants)
91 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
ML 2.1 2009-04-10
08:45:08
42.365 13.382 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 784819
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-10 08:45:08 ± 0.09
Latitude 42.3650 ± 0.0054
Longitude 13.3820 ± 0.0085
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 784819

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 664
Semi-minor axis of confidence ellipse (meter) 552
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 92
Circular confidence region, given by single value of horizontal uncertainty (meter) 922.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.52341
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 10
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 784819
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:51:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SDI.SHZ. 2009-04-10T08:46:11.46 10.0 undecidable manual Pg 0 0 0
IV.FDMO.HHE. 2009-04-10T08:46:11.31 10.0 undecidable manual Pg 0 0 0
IV.POFI.HHZ. 2009-04-10T08:46:11.48 10.0 undecidable manual Sg 0 0 0
IV.LPEL.HHZ. 2009-04-10T08:46:09.02 10.0 undecidable manual Sg 0 0 0
IV.GUAR.HHN. 2009-04-10T08:46:07.38 10.0 undecidable manual Sg 0 0 0
IV.POFI.HHZ. 2009-04-10T08:46:05.11 10.0 undecidable manual Pg 0 0 0
IV.CERT.HHN. 2009-04-10T08:46:05.25 10.0 undecidable manual Pg 0 0 0
IV.MNS.HHE. 2009-04-10T08:46:05.21 10.0 undecidable manual Pg 0 0 0
IV.VVLD.HHZ. 2009-04-10T08:46:04.26 10.0 undecidable manual Sg 0 0 0
IV.GUAR.HHN. 2009-04-10T08:46:02.00 10.0 undecidable manual Pg 0 0 0
IV.LPEL.HHZ. 2009-04-10T08:46:00.48 10.0 undecidable manual Pg 0 0 0
IV.VVLD.HHZ. 2009-04-10T08:45:58.74 10.0 undecidable manual Pg 0 0 0
IV.NRCA.SHZ. 2009-04-10T08:45:58.11 10.0 undecidable manual Pg 0 0 0
IV.LNSS.HHZ. 2009-04-10T08:45:21.86 0.6 undecidable manual Sg 313 38.4282 0.46 43
IV.PTQR.SHZ. 2009-04-10T08:45:20.81 0.6 undecidable manual Sg 178 38.1285 -0.49 43
IV.INTR.HHZ. 2009-04-10T08:45:19.63 0.3 undecidable manual Pg 132 58.0974 0.663 58
IV.TERO.HHZ. 2009-04-10T08:45:19.64 0.3 undecidable manual Sg 32 33.8439 -0.527 64
IV.FIAM.HHN. 2009-04-10T08:45:17.61 0.3 undecidable manual Sg 244 24.2535 0.008 73
IV.FAGN.HHZ. 2009-04-10T08:45:16.13 0.6 undecidable manual Sg 124 19.869 -0.078 49
IV.VCEL.EHZ. 2009-04-10T08:45:16.00 0.1 undecidable manual Pg 85 37.7289 0.184 92
IV.CAMP.HHZ. 2009-04-10T08:45:16.13 0.1 undecidable manual Sg 7 19.0698 0.165 96
IV.TERO.HHZ. 2009-04-10T08:45:15.06 0.1 undecidable manual Pg 32 33.8439 -0.164 93
IV.LNSS.HHZ. 2009-04-10T08:45:15.14 0.3 undecidable manual Pg 313 38.4282 -0.795 57
IV.PTQR.SHZ. 2009-04-10T08:45:15.98 0.3 undecidable manual Pg 178 38.1285 0.102 70
IV.CAMP.HHZ. 2009-04-10T08:45:13.07 0.1 undecidable manual Pg 7 19.0698 0.272 94
IV.FAGN.HHZ. 2009-04-10T08:45:13.21 0.3 undecidable manual Pg 124 19.869 0.272 70
IV.FIAM.HHN. 2009-04-10T08:45:13.83 0.1 undecidable manual Pg 244 24.2535 0.087 96
IV.T0105.HLZ. 2009-04-10T08:45:12.90 0.3 undecidable manual Sg 132 8.88 -0.261 72
IV.T0105.HLZ. 2009-04-10T08:45:11.36 0.1 undecidable manual Pg 132 8.88 0.181 97
MN.AQU.HHZ. 2009-04-10T08:45:11.62 0.1 undecidable manual Sg 128 1.998 -0.445 93
MN.AQU.HHZ. 2009-04-10T08:45:10.64 0.1 undecidable manual Pg 128 1.998 0.095 100
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