Earthquake with magnitude of ML 2.1 on date 06-04-2009 and time 18:23:13 (Italy) in region 2 km W Fossa (AQ)

A magnitude ML 2.1 earthquake occured in region: 2 km W Fossa (AQ), on

  • 06-04-2009 16:23:13 (UTC)
  • 06-04-2009 18:23:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3010, 13.4700 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
Fossa AQ 2 721 721
Ocre AQ 2 1167 1888
Sant'Eusanio Forconese AQ 5 394 2282
Poggio Picenze AQ 6 1136 3418
Villa Sant'Angelo AQ 7 424 3842
Rocca di Cambio AQ 7 533 4375
San Demetrio ne' Vestini AQ 8 1854 6229
L'Aquila AQ 8 69753 75982
Fagnano Alto AQ 10 418 76400
Barisciano AQ 10 1828 78228
Lucoli AQ 11 1011 79239
Rocca di Mezzo AQ 11 1526 80765
Prata d'Ansidonia AQ 12 496 81261
Fontecchio AQ 14 369 81630
Tornimparte AQ 14 3187 84817
Santo Stefano di Sessanio AQ 15 111 84928
San Pio delle Camere AQ 15 661 85589
Tione degli Abruzzi AQ 17 310 85899
Caporciano AQ 18 230 86129
Carapelle Calvisio AQ 18 87 86216
Castelvecchio Calvisio AQ 18 153 86369
Calascio AQ 19 137 86506
Ovindoli AQ 19 1227 87733
Scoppito AQ 19 3727 91460

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km SE of L'Aquila (69753 inhabitants)
44 Km SW of Teramo (54892 inhabitants)
58 Km W of Chieti (51815 inhabitants)
61 Km W of Montesilvano (53738 inhabitants)
64 Km W of Pescara (121014 inhabitants)
67 Km NE of Tivoli (56533 inhabitants)
70 Km E of Guidonia Montecelio (88673 inhabitants)
74 Km E of Terni (111501 inhabitants)
89 Km NE of Velletri (53303 inhabitants)
93 Km E of Roma (2864731 inhabitants)
96 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 2.1 2009-04-06
16:23:13
42.301 13.47 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 761179
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 16:23:13 ± 0.09
Latitude 42.3010 ± 0.0054
Longitude 13.4700 ± 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 761179

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 683
Semi-minor axis of confidence ellipse (meter) 570
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 48
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) 58
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.07285
Epicentral distance of station farthest from the epicenter (degree) 0.50452
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 761179
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:23:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
.INTR.HHN. 2009-04-06T16:23:29.41 0.3 undecidable manual Sg 132 48.0186 0.444 64
.TERO.---. 2009-04-06T16:23:25.94 0.6 undecidable manual Sg 17 37.3293 -0.157 46
.FIAM.---. 2009-04-06T16:23:24.09 0.3 undecidable manual Sg 263 29.1486 0.159 70
.PTQR.---. 2009-04-06T16:23:24.18 0.3 undecidable manual Sg 190 31.5462 -0.368 67
.CAMP.---. 2009-04-06T16:23:23.38 0.6 undecidable manual Sg 349 26.4513 0.169 47
.CERT.---. 2009-04-06T16:23:23.57 0.6 undecidable manual Pg 226 55.9995 -0.068 45
.INTR.HHN. 2009-04-06T16:23:22.46 0.1 undecidable manual Pg 132 48.0186 0.053 92
.TERO.---. 2009-04-06T16:23:20.48 0.3 undecidable manual Pg 17 37.3293 -0.272 68
.FIAM.---. 2009-04-06T16:23:19.56 0.1 positive manual Pg 263 29.1486 0.057 96
.CAMP.---. 2009-04-06T16:23:19.72 0.3 undecidable manual Pg 349 26.4513 0.634 62
IV.VCEL.EHZ. 2009-04-06T16:23:19.17 0.3 undecidable manual Pg 71 32.0457 -0.776 58
.PTQR.---. 2009-04-06T16:23:19.72 0.3 undecidable manual Pg 190 31.5462 -0.138 70
IV.FAGN.HHZ. 2009-04-06T16:23:18.40 0.3 undecidable manual Sg 113 10.0788 0.002 75
MN.AQU.HHZ. 2009-04-06T16:23:17.75 0.3 undecidable manual Sg 316 8.0808 -0.171 73
MN.AQU.HHZ. 2009-04-06T16:23:16.02 0.1 undecidable manual Pg 316 8.0808 -0.011 100
IV.FAGN.HHZ. 2009-04-06T16:23:16.57 0.1 undecidable manual Pg 113 10.0788 0.265 95
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