Earthquake with magnitude of ML 2.3 on date 06-04-2009 and time 16:33:09 (Italy) in region 6 km N L'Aquila (AQ)

A magnitude ML 2.3 earthquake occured in region: 6 km N L'Aquila (AQ), on

  • 06-04-2009 14:33:09 (UTC)
  • 06-04-2009 16:33:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4050, 13.4090 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 6 69753 69753
Pizzoli AQ 10 4326 74079
Barete AQ 12 737 74816
Scoppito AQ 13 3727 78543
Lucoli AQ 14 1011 79554
Fossa AQ 14 721 80275
Ocre AQ 14 1167 81442
Poggio Picenze AQ 14 1136 82578
Tornimparte AQ 15 3187 85765
Capitignano AQ 16 665 86430
Sant'Eusanio Forconese AQ 16 394 86824
Cagnano Amiterno AQ 16 1369 88193
Crognaleto TE 17 1297 89490
Barisciano AQ 17 1828 91318
Campotosto AQ 17 542 91860
Pietracamela TE 18 271 92131
San Demetrio ne' Vestini AQ 18 1854 93985
Villa Sant'Angelo AQ 18 424 94409
Montereale AQ 19 2581 96990
Fano Adriano TE 20 296 97286
Rocca di Cambio AQ 20 533 97819

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km N of L'Aquila (69753 inhabitants)
37 Km SW of Teramo (54892 inhabitants)
62 Km W of Montesilvano (53738 inhabitants)
63 Km W of Chieti (51815 inhabitants)
65 Km E of Terni (111501 inhabitants)
66 Km W of Pescara (121014 inhabitants)
70 Km NE of Tivoli (56533 inhabitants)
72 Km NE of Guidonia Montecelio (88673 inhabitants)
84 Km SE of Foligno (57155 inhabitants)
95 Km NE of Roma (2864731 inhabitants)
95 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
ML 2.3 2009-04-06
14:33:09
42.405 13.409 8 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 760549
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 14:33:09 ± 0.08
Latitude 42.4050 ± 0.0045
Longitude 13.4090 ± 0.0073
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 760549

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 610
Semi-minor axis of confidence ellipse (meter) 230
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 272
Circular confidence region, given by single value of horizontal uncertainty (meter) 781.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 95
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 20
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) 0.67359
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:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 760549
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:23:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.OC9.EHZ. 2009-04-06T14:33:36.91 10.0 undecidable manual Pg 0 0 0
IV.SDI.SHZ. 2009-04-06T14:33:36.41 10.0 undecidable manual Pg 0 0 0
IV.LPEL.HHN. 2009-04-06T14:33:34.56 10.0 undecidable manual Pg 0 0 0
IV.FDMO.HHN. 2009-04-06T14:33:33.59 0.6 undecidable manual Sg 340 74.7696 0.721 37
IV.OFFI.HHN. 2009-04-06T14:33:32.93 10.0 undecidable manual Pg 0 0 0
IV.MNS.HHE. 2009-04-06T14:33:29.53 10.0 undecidable manual Sg 0 0 0
IV.INTR.HHE. 2009-04-06T14:33:29.26 1.0 undecidable manual Sg 137 59.6958 0.427 21
IV.NRCA.SHZ. 2009-04-06T14:33:27.26 0.3 undecidable manual Sg 333 53.3022 0.136 68
IV.FDMO.HHN. 2009-04-06T14:33:23.17 0.1 undecidable manual Pg 340 74.7696 0.057 89
IV.PTQR.SHZ. 2009-04-06T14:33:23.41 0.6 undecidable manual Sg 181 42.5241 -0.836 38
IV.VCEL.EHZ. 2009-04-06T14:33:22.46 0.6 undecidable manual Sg 92 35.3424 0.117 47
IV.FIAM.HHE. 2009-04-06T14:33:20.02 0.3 undecidable manual Sg 238 28.3494 -0.002 73
IV.INTR.HHE. 2009-04-06T14:33:20.74 0.3 undecidable manual Pg 137 59.6958 -0.047 69
IV.TERO.HHZ. 2009-04-06T14:33:19.69 0.3 undecidable manual Sg 33 28.9488 -0.529 65
IV.NRCA.SHZ. 2009-04-06T14:33:19.62 0.3 undecidable manual Pg 333 53.3022 -0.178 68
IV.FAGN.HHZ. 2009-04-06T14:33:18.47 0.6 undecidable manual Sg 137 21.0678 0.844 39
IV.CAFR.HHZ. 2009-04-06T14:33:18.09 10.0 undecidable manual Pg 0 0 0
IV.VCEL.EHZ. 2009-04-06T14:33:17.49 0.6 undecidable manual Pg 92 35.3424 0.451 44
IV.PTQR.SHZ. 2009-04-06T14:33:17.94 0.3 undecidable manual Pg 181 42.5241 -0.195 69
.CAMP.---. 2009-04-06T14:33:15.89 0.3 undecidable manual Sg 360 14.4744 0.332 70
IV.FIAM.HHE. 2009-04-06T14:33:15.70 0.1 undecidable manual Pg 238 28.3494 0.002 98
IV.TERO.HHZ. 2009-04-06T14:33:15.38 0.1 undecidable manual Pg 33 28.9488 -0.433 89
IV.FAGN.HHZ. 2009-04-06T14:33:14.36 0.6 undecidable manual Pg 137 21.0678 0.047 49
.CAMP.---. 2009-04-06T14:33:13.15 0.1 undecidable manual Pg 360 14.4744 0.028 100
MN.AQU.HHZ. 2009-04-06T14:33:13.32 0.1 undecidable manual Sg 186 5.6943 0.089 100
MN.AQU.HHZ. 2009-04-06T14:33:11.66 0.1 undecidable manual Pg 186 5.6943 -0.116 99
IV.MURB.HHZ. 2009-04-06T14:32:51.11 10.0 undecidable manual Sg 0 0 0
IV.MURB.HHZ. 2009-04-06T14:32:45.54 10.0 undecidable manual Pg 0 0 0
IV.ASSB.HHN. 2009-04-06T14:32:37.81 10.0 undecidable manual Pg 0 0 0
IV.GUAR.HHZ. 2009-04-06T14:32:37.36 10.0 undecidable manual Pg 0 0 0
IV.MNS.HHE. 2009-04-06T14:32:34.20 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
Waveforms Seismic signals in miniseed + resp format Download