Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.5 on date 06-04-2009 and time 16:45:06 (Italy) in region 2 km W Ocre (AQ)

A magnitude ML 2.5 earthquake occured in region: 2 km W Ocre (AQ), on

  • 06-04-2009 14:45:06 (UTC)
  • 06-04-2009 16:45:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.2860, 13.4500 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Ocre AQ 2 1167 1167
Fossa AQ 3 721 1888
Sant'Eusanio Forconese AQ 6 394 2282
Rocca di Cambio AQ 6 533 2815
Villa Sant'Angelo AQ 8 424 3239
L'Aquila AQ 9 69753 72992
Poggio Picenze AQ 9 1136 74128
San Demetrio ne' Vestini AQ 9 1854 75982
Lucoli AQ 9 1011 76993
Rocca di Mezzo AQ 10 1526 78519
Fagnano Alto AQ 11 418 78937
Tornimparte AQ 12 3187 82124
Barisciano AQ 13 1828 83952
Prata d'Ansidonia AQ 13 496 84448
Fontecchio AQ 14 369 84817
San Pio delle Camere AQ 17 661 85478
Santo Stefano di Sessanio AQ 17 111 85589
Tione degli Abruzzi AQ 18 310 85899
Ovindoli AQ 18 1227 87126
Scoppito AQ 19 3727 90853
Caporciano AQ 19 230 91083
Carapelle Calvisio AQ 19 87 91170
Castelvecchio Calvisio AQ 20 153 91323

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km SE of L'Aquila (69753 inhabitants)
47 Km SW of Teramo (54892 inhabitants)
60 Km W of Chieti (51815 inhabitants)
63 Km W of Montesilvano (53738 inhabitants)
65 Km NE of Tivoli (56533 inhabitants)
66 Km W of Pescara (121014 inhabitants)
68 Km E of Guidonia Montecelio (88673 inhabitants)
73 Km E of Terni (111501 inhabitants)
87 Km NE of Velletri (53303 inhabitants)
91 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 2.5 2009-04-06
14:45:06		 42.286 13.45 10 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 760639
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 14:45:06 ± 0.08
Latitude 42.2860 ± 0.0045
Longitude 13.4500 ± 0.0061
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 760639

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 564
Semi-minor axis of confidence ellipse (meter) 422
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 227
Circular confidence region, given by single value of horizontal uncertainty (meter) 707.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 52
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.47
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.87864
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 16
Magnitude information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 760639
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:23:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MILZ.HHE. 2009-04-06T14:45:46.06 10.0 undecidable manual Pg 0 0 0
IV.ASSB.HHE. 2009-04-06T14:45:40.84 10.0 undecidable manual Pg 0 0 0
IV.RNI2.HHN. 2009-04-06T14:45:35.20 10.0 undecidable manual Sg 0 0 0
IV.CERA.HHE. 2009-04-06T14:45:34.43 10.0 undecidable manual Pg 0 0 0
IV.CAFR.HHE. 2009-04-06T14:45:31.93 10.0 undecidable manual Pg 0 0 0
IV.RNI2.HHN. 2009-04-06T14:45:29.68 10.0 undecidable manual Pg 0 0 0
IV.SDI.SHZ. 2009-04-06T14:45:29.40 10.0 undecidable manual Sg 0 0 0
IV.NRCA.SHZ. 2009-04-06T14:45:27.35 0.6 undecidable manual Sg 336 66.5778 0.359 44
IV.LPEL.HHE. 2009-04-06T14:45:27.19 0.1 undecidable manual Sg 114 65.8896 0.393 87
IV.FDMO.HHN. 2009-04-06T14:45:23.19 10.0 undecidable manual Pg 0 0 0
IV.MIDA.HHZ. 2009-04-06T14:45:22.88 0.3 undecidable manual Pg 137 97.5246 -0.212 63
IV.INTR.HHE. 2009-04-06T14:45:22.28 0.3 undecidable manual Sg 129 48.2184 0.19 70
IV.CERT.HHN. 2009-04-06T14:45:22.53 0.6 undecidable manual Sg 226 53.7018 -1.022 34
IV.VVLD.HHZ. 2009-04-06T14:45:21.77 0.6 undecidable manual Sg 163 48.4182 -0.359 45
IV.SDI.SHZ. 2009-04-06T14:45:20.14 10.0 undecidable manual Pg 0 0 0
IV.GIUL.HHN. 2009-04-06T14:45:20.96 0.6 undecidable manual Pg 191 82.3509 0.204 43
IV.NRCA.SHZ. 2009-04-06T14:45:19.47 0.3 undecidable manual Pg 336 66.5778 1.142 48
IV.TERO.HHZ. 2009-04-06T14:45:18.71 0.6 undecidable manual Sg 19 39.3273 -1.014 35
IV.LPEL.HHE. 2009-04-06T14:45:18.11 0.1 undecidable manual Pg 114 65.8896 -0.106 91
IV.MNS.HHZ. 2009-04-06T14:45:18.28 0.6 undecidable manual Pg 280 63.9915 0.355 44
IV.VCEL.EHZ. 2009-04-06T14:45:18.10 0.3 undecidable manual Sg 69 34.2435 -0.239 70
IV.PTQR.SHZ. 2009-04-06T14:45:17.18 0.3 undecidable manual Sg 188 29.6481 0.059 74
IV.CERT.HHN. 2009-04-06T14:45:16.00 0.3 undecidable manual Pg 226 53.7018 -0.341 67
IV.FIAM.HHZ. 2009-04-06T14:45:16.72 0.1 undecidable manual Sg 266 27.3504 0.191 97
IV.GUAR.HHE. 2009-04-06T14:45:16.68 0.6 undecidable manual Pg 192 55.6998 0.027 47
IV.CAMP.HHZ. 2009-04-06T14:45:15.95 0.6 undecidable manual Sg 353 27.8499 -0.702 41
IV.VVLD.HHZ. 2009-04-06T14:45:15.30 0.1 undecidable manual Pg 163 48.4182 -0.218 92
IV.INTR.HHE. 2009-04-06T14:45:15.41 0.1 undecidable manual Pg 129 48.2184 -0.087 95
IV.TERO.HHZ. 2009-04-06T14:45:14.09 0.1 undecidable manual Pg 19 39.3273 -0.041 97
IV.VCEL.EHZ. 2009-04-06T14:45:13.89 0.1 undecidable manual Pg 69 34.2435 0.559 88
IV.CAMP.HHZ. 2009-04-06T14:45:12.38 0.1 undecidable manual Pg 353 27.8499 0.023 100
IV.FIAM.HHZ. 2009-04-06T14:45:12.50 0.1 undecidable manual Pg 266 27.3504 0.215 96
IV.PTQR.SHZ. 2009-04-06T14:45:12.72 0.1 undecidable manual Pg 188 29.6481 0.091 98
IV.FAGN.HHZ. 2009-04-06T14:45:11.46 0.3 undecidable manual Sg 102 11.1777 -0.211 75
MN.AQU.HHZ. 2009-04-06T14:45:10.69 0.1 undecidable manual Sg 332 8.4804 -0.308 98
IV.FAGN.HHZ. 2009-04-06T14:45:09.60 0.1 undecidable manual Pg 102 11.1777 0.12 100
MN.AQU.HHZ. 2009-04-06T14:45:09.19 0.3 undecidable manual Pg 332 8.4804 0.099 75
IV.ORI.EHE. 2009-04-06T14:45:03.18 10.0 undecidable manual Pg 0 0 0
NI.VINO.HHZ. 2009-04-06T14:45:00.42 10.0 undecidable manual Pg 0 0 0
IV.MURB.HHN. 2009-04-06T14:44:34.61 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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