Earthquake with magnitude of ML 2.4 on date 06-04-2009 and time 22:50:55 (Italy) in region 6 km W L'Aquila (AQ)

A magnitude ML 2.4 earthquake occured in region: 6 km W L'Aquila (AQ), on

  • 06-04-2009 20:50:55 (UTC)
  • 06-04-2009 22:50:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3660, 13.3320 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 6 69753 69753
Scoppito AQ 6 3727 73480
Lucoli AQ 8 1011 74491
Pizzoli AQ 8 4326 78817
Tornimparte AQ 9 3187 82004
Barete AQ 10 737 82741
Cagnano Amiterno AQ 14 1369 84110
Ocre AQ 15 1167 85277
Fossa AQ 15 721 85998
Capitignano AQ 17 665 86663
Poggio Picenze AQ 18 1136 87799
Sant'Eusanio Forconese AQ 18 394 88193
Montereale AQ 19 2581 90774
Rocca di Cambio AQ 19 533 91307
Villa Sant'Angelo AQ 20 424 91731

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km W of L'Aquila (69753 inhabitants)
45 Km SW of Teramo (54892 inhabitants)
60 Km E of Terni (111501 inhabitants)
63 Km NE of Tivoli (56533 inhabitants)
64 Km NE of Guidonia Montecelio (88673 inhabitants)
69 Km W of Chieti (51815 inhabitants)
69 Km W of Montesilvano (53738 inhabitants)
73 Km W of Pescara (121014 inhabitants)
83 Km SE of Foligno (57155 inhabitants)
87 Km NE of Roma (2864731 inhabitants)
88 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 2.4 2009-04-06
20:50:55
42.366 13.332 11 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 762889
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 20:50:55 ± 0.14
Latitude 42.3660 ± 0.0090
Longitude 13.3320 ± 0.0146
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 762889

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1487
Semi-minor axis of confidence ellipse (meter) 750
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 302
Circular confidence region, given by single value of horizontal uncertainty (meter) 1562.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.59
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.55218
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 10
Magnitude information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 762889
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:25:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHE. 2009-04-06T20:52:25.11 10.0 undecidable manual Pg 0 0 0
IV.OFFI.HHE. 2009-04-06T20:52:20.18 10.0 undecidable manual Pg 0 0 0
MN.TRI.HHE. 2009-04-06T20:52:17.37 10.0 undecidable manual Pg 0 0 0
IV.MNS.HHE. 2009-04-06T20:52:09.10 10.0 undecidable manual Pg 0 0 0
IV.MELA.HHE. 2009-04-06T20:51:54.81 10.0 undecidable manual Pg 0 0 0
.INTR.---. 2009-04-06T20:51:07.19 0.6 undecidable manual Pg 130 61.2942 0.887 35
.PTQR.SHZ. 2009-04-06T20:51:07.79 0.3 undecidable manual Sg 172 38.5281 -0.446 65
IV.TERO.HHZ. 2009-04-06T20:51:06.85 0.3 undecidable manual Sg 38 36.2415 -0.759 58
.CERT.---. 2009-04-06T20:51:05.01 0.3 undecidable manual Pg 212 54.4011 -0.232 66
.NRCA.---. 2009-04-06T20:51:05.93 0.3 undecidable manual Pg 341 54.9006 0.623 60
.VCEL.---. 2009-04-06T20:51:04.23 0.3 undecidable manual Pg 85 41.8248 0.93 54
.CAMP.HHZ. 2009-04-06T20:51:03.11 0.3 undecidable manual Sg 19 19.9689 -0.047 73
IV.FIAM.HHN. 2009-04-06T20:51:03.27 0.3 undecidable manual Sg 238 20.6682 -0.11 72
.PTQR.SHZ. 2009-04-06T20:51:02.39 0.3 undecidable manual Pg 172 38.5281 -0.399 66
IV.TERO.HHZ. 2009-04-06T20:51:02.01 0.1 undecidable manual Pg 38 36.2415 -0.421 88
.FAGN.HHE. 2009-04-06T20:51:01.15 0.3 undecidable manual Pg 118 23.4543 0.682 61
IV.FIAM.HHN. 2009-04-06T20:51:00.17 0.1 undecidable manual Pg 238 20.6682 0.183 95
.AQU.HHZ. 2009-04-06T20:50:59.20 0.3 undecidable manual Sg 103 5.8941 -0.313 71
.CAMP.HHZ. 2009-04-06T20:50:59.91 0.1 undecidable manual Pg 19 19.9689 0.048 97
.AQU.HHZ. 2009-04-06T20:50:57.80 0.1 negative manual Pg 103 5.8941 0.041 100
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