Earthquake with magnitude of ML 2.0 on date 06-04-2009 and time 20:43:48 (UTC) in region 2 km SE Fossa (AQ)

A magnitude ML 2.0 earthquake occured in region: 2 km SE Fossa (AQ), on

  • 06-04-2009 20:43:48 (UTC)
  • 06-04-2009 22:43:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.2800, 13.4950 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
Fossa AQ 2 721 721
Ocre AQ 2 1167 1888
Sant'Eusanio Forconese AQ 3 394 2282
Villa Sant'Angelo AQ 4 424 2706
Rocca di Cambio AQ 5 533 3239
San Demetrio ne' Vestini AQ 5 1854 5093
Poggio Picenze AQ 6 1136 6229
Fagnano Alto AQ 7 418 6647
Rocca di Mezzo AQ 8 1526 8173
Prata d'Ansidonia AQ 9 496 8669
Barisciano AQ 10 1828 10497
Fontecchio AQ 11 369 10866
L'Aquila AQ 11 69753 80619
Lucoli AQ 13 1011 81630
San Pio delle Camere AQ 13 661 82291
Tione degli Abruzzi AQ 14 310 82601
Santo Stefano di Sessanio AQ 14 111 82712
Caporciano AQ 15 230 82942
Carapelle Calvisio AQ 16 87 83029
Tornimparte AQ 16 3187 86216
Ovindoli AQ 16 1227 87443
Castelvecchio Calvisio AQ 16 153 87596
Calascio AQ 17 137 87733

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km SE of L'Aquila (69753 inhabitants)
46 Km SW of Teramo (54892 inhabitants)
56 Km W of Chieti (51815 inhabitants)
60 Km W of Montesilvano (53738 inhabitants)
63 Km W of Pescara (121014 inhabitants)
67 Km NE of Tivoli (56533 inhabitants)
71 Km E of Guidonia Montecelio (88673 inhabitants)
76 Km E of Terni (111501 inhabitants)
89 Km NE of Velletri (53303 inhabitants)
94 Km E of Roma (2864731 inhabitants)
99 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
ML 2.0 2009-04-06
20:43:48
42.28 13.495 8 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 762809
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 20:43:48 ± 0.21
Latitude 42.2800 ± 0.0234
Longitude 13.4950 ± 0.0207
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 762809

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2901
Semi-minor axis of confidence ellipse (meter) 899
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 30
Circular confidence region, given by single value of horizontal uncertainty (meter) 3106.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 146
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.06745
Epicentral distance of station farthest from the epicenter (degree) 0.42088
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 762809
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:25:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTQR.SHZ. 2009-04-06T20:43:59.10 0.6 undecidable manual Sg 195 29.748 0.332 48
.INTR.---. 2009-04-06T20:43:56.77 0.3 undecidable manual Pg 131 45.0216 0.028 68
.VVLD.---. 2009-04-06T20:43:56.62 0.3 undecidable manual Pg 167 46.7199 -0.403 65
IV.PTQR.SHZ. 2009-04-06T20:43:54.65 0.6 undecidable manual Pg 195 29.748 0.407 45
MN.AQU.HHZ. 2009-04-06T20:43:52.59 0.3 undecidable manual Sg 317 11.1777 -0.319 70
MN.AQU.HHZ. 2009-04-06T20:43:51.13 0.1 undecidable manual Pg 317 11.1777 0.273 93
IV.FAGN.HHE. 2009-04-06T20:43:51.93 0.6 undecidable manual Sg 103 7.4814 -0.03 49
IV.FAGN.HHE. 2009-04-06T20:43:50.33 0.1 undecidable manual Pg 103 7.4814 0.019 100
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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