Earthquake with magnitude of ML 2.2 on date 06-04-2009 and time 22:02:45 (Italy) in region NE L'Aquila (AQ)

A magnitude ML 2.2 earthquake occured in region: NE L'Aquila (AQ), on

  • 06-04-2009 20:02:45 (UTC)
  • 06-04-2009 22:02:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3550, 13.4010 at 9 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 0 69753 69753
Lucoli AQ 9 1011 70764
Ocre AQ 10 1167 71931
Fossa AQ 10 721 72652
Tornimparte AQ 11 3187 75839
Scoppito AQ 12 3727 79566
Poggio Picenze AQ 12 1136 80702
Pizzoli AQ 13 4326 85028
Sant'Eusanio Forconese AQ 13 394 85422
Barete AQ 15 737 86159
Villa Sant'Angelo AQ 15 424 86583
San Demetrio ne' Vestini AQ 15 1854 88437
Rocca di Cambio AQ 15 533 88970
Barisciano AQ 16 1828 90798
Fagnano Alto AQ 18 418 91216
Cagnano Amiterno AQ 19 1369 92585
Prata d'Ansidonia AQ 19 496 93081
Rocca di Mezzo AQ 19 1526 94607

Municipalities with at least 50000 inhabitants

An earthquake occurred to
0 Km NE of L'Aquila (69753 inhabitants)
42 Km SW of Teramo (54892 inhabitants)
63 Km W of Chieti (51815 inhabitants)
64 Km W of Montesilvano (53738 inhabitants)
66 Km NE of Tivoli (56533 inhabitants)
66 Km E of Terni (111501 inhabitants)
68 Km W of Pescara (121014 inhabitants)
68 Km NE of Guidonia Montecelio (88673 inhabitants)
88 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 2.2 2009-04-06
20:02:45
42.355 13.401 9 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 762499
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 20:02:45 ± 0.14
Latitude 42.3550 ± 0.0072
Longitude 13.4010 ± 0.0134
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 762499

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1085
Semi-minor axis of confidence ellipse (meter) 685
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 89
Circular confidence region, given by single value of horizontal uncertainty (meter) 1360.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 94
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.53
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.52251
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 8
Magnitude information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 762499
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:25:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
.PTQR.---. 2009-04-06T20:02:58.20 0.6 undecidable manual Sg 180 36.9297 -0.23 45
.NRCA.---. 2009-04-06T20:02:56.38 0.3 undecidable manual Pg 336 57.9975 0.077 67
.TERO.---. 2009-04-06T20:02:56.89 0.6 undecidable manual Sg 29 34.0437 -0.775 38
.CERT.---. 2009-04-06T20:02:55.95 0.3 undecidable manual Pg 218 56.6988 -0.146 67
.FIAM.---. 2009-04-06T20:02:54.59 0.6 undecidable manual Sg 248 25.1526 -0.414 44
.CAMP.---. 2009-04-06T20:02:53.52 0.3 undecidable manual Sg 2 20.0688 0.153 71
.PTQR.---. 2009-04-06T20:02:53.74 0.3 undecidable manual Pg 180 36.9297 0.689 59
.TERO.---. 2009-04-06T20:02:52.05 0.3 undecidable manual Pg 29 34.0437 -0.563 63
IV.FAGN.HHN. 2009-04-06T20:02:52.52 0.3 undecidable manual Sg 123 17.9709 -0.186 71
.FIAM.---. 2009-04-06T20:02:51.37 0.6 undecidable manual Pg 248 25.1526 0.292 46
IV.FAGN.HHN. 2009-04-06T20:02:50.19 0.1 undecidable manual Pg 123 17.9709 0.439 89
.CAMP.---. 2009-04-06T20:02:50.80 0.1 undecidable manual Pg 2 20.0688 0.667 82
.AQU.HHN. 2009-04-06T20:02:48.28 0.3 undecidable manual Sg 139 0.0999 -0.617 65
.AQU.HHN. 2009-04-06T20:02:47.49 0.1 negative manual Pg 139 0.0999 -0.056 100
IV.GAVE.SHZ. 2009-04-06T20:01:37.61 10.0 undecidable manual Pg 0 0 0
IV.VCEL.EHE. 2009-04-06T20:01:18.87 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