Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 09-04-2009 and time 18:06:32 (UTC) in region 1 km W Ocre (AQ)

A magnitude ML 2.4 earthquake occured in region: 1 km W Ocre (AQ), on

  • 09-04-2009 18:06:32 (UTC)
  • 09-04-2009 20:06:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.2860, 13.4670 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 1 1167 1167
Fossa AQ 2 721 1888
Sant'Eusanio Forconese AQ 5 394 2282
Rocca di Cambio AQ 6 533 2815
Villa Sant'Angelo AQ 6 424 3239
Poggio Picenze AQ 7 1136 4375
San Demetrio ne' Vestini AQ 8 1854 6229
L'Aquila AQ 9 69753 75982
Rocca di Mezzo AQ 10 1526 77508
Fagnano Alto AQ 10 418 77926
Lucoli AQ 11 1011 78937
Barisciano AQ 11 1828 80765
Prata d'Ansidonia AQ 12 496 81261
Fontecchio AQ 13 369 81630
Tornimparte AQ 14 3187 84817
San Pio delle Camere AQ 16 661 85478
Santo Stefano di Sessanio AQ 16 111 85589
Tione degli Abruzzi AQ 17 310 85899
Caporciano AQ 17 230 86129
Ovindoli AQ 17 1227 87356
Carapelle Calvisio AQ 18 87 87443
Castelvecchio Calvisio AQ 19 153 87596
Calascio AQ 19 137 87733
Scoppito AQ 20 3727 91460

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km SE of L'Aquila (69753 inhabitants)
46 Km SW of Teramo (54892 inhabitants)
58 Km W of Chieti (51815 inhabitants)
62 Km W of Montesilvano (53738 inhabitants)
65 Km W of Pescara (121014 inhabitants)
66 Km NE of Tivoli (56533 inhabitants)
69 Km E of Guidonia Montecelio (88673 inhabitants)
74 Km E of Terni (111501 inhabitants)
88 Km NE of Velletri (53303 inhabitants)
92 Km E of Roma (2864731 inhabitants)
97 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 		Md 2.7
ML 2.4 		2009-04-09
18:06:32		 42.286 13.467 10 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 781389
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-09 18:06:32 ± 0.08
Latitude 42.2860 ± 0.0036
Longitude 13.4670 ± 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 781389

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 479
Semi-minor axis of confidence ellipse (meter) 231
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 57
Circular confidence region, given by single value of horizontal uncertainty (meter) 640.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 51
Number of associated phases, regardless of their use for origin computation 67
Number of defining phases 37
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.96138
Number of stations at which the event was observed 49
Number of stations from which data was used for origin computation 25
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 781389
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:47:28

Md:2.7

Field Value
Value 2.7
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 781389
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:47:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAFI.HHZ. 2009-04-09T18:07:24.92 10.0 undecidable manual Sn 0 0 0
IV.STR3.BHE. 2009-04-09T18:07:13.53 10.0 undecidable manual Pn 0 0 0
IV.PARC.HHZ. 2009-04-09T18:07:09.39 10.0 undecidable manual Sn 0 0 0
IV.CAFI.HHZ. 2009-04-09T18:07:06.05 10.0 undecidable manual Pn 0 0 0
IV.PARC.HHZ. 2009-04-09T18:07:06.28 10.0 undecidable manual Pn 0 0 0
IV.LATE.HHZ. 2009-04-09T18:07:03.07 10.0 undecidable manual Sg 0 0 0
IV.TRTR.HHE. 2009-04-09T18:07:03.73 10.0 undecidable manual Pn 0 0 0
IV.TRIV.HHN. 2009-04-09T18:07:02.95 10.0 undecidable manual Pg 0 0 0
IV.MA9.HHE. 2009-04-09T18:07:02.58 10.0 undecidable manual Pg 0 0 0
IV.FSSB.SHZ. 2009-04-09T18:07:01.15 10.0 undecidable manual Pg 0 0 0
IV.RMP.HHE. 2009-04-09T18:07:01.49 10.0 undecidable manual Sg 0 0 0
IV.PTRJ.HHN. 2009-04-09T18:07:00.93 10.0 undecidable manual Pg 0 0 0
IV.PIEI.HHE. 2009-04-09T18:07:00.77 10.0 undecidable manual Pg 0 0 0
IV.ARVD.HHE. 2009-04-09T18:06:59.95 10.0 undecidable manual Sg 0 0 0
IV.SGG.HHN. 2009-04-09T18:06:59.38 10.0 undecidable manual Pg 0 0 0
IV.AOI.HHZ. 2009-04-09T18:06:59.34 10.0 undecidable manual Pg 0 0 0
IV.LATE.HHZ. 2009-04-09T18:06:59.02 10.0 undecidable manual Pg 0 0 0
IV.MURB.HHN. 2009-04-09T18:06:59.22 10.0 undecidable manual Pg 0 0 0
IV.MGAB.HHE. 2009-04-09T18:06:58.63 10.0 undecidable manual Pg 0 0 0
IV.VAGA.HHZ. 2009-04-09T18:06:57.61 10.0 undecidable manual Pg 0 0 0
IV.GIUL.HHE. 2009-04-09T18:06:57.56 10.0 undecidable manual Sg 0 0 0
IV.ARVD.HHE. 2009-04-09T18:06:56.93 10.0 undecidable manual Pg 0 0 0
IV.CAFR.HHE. 2009-04-09T18:06:56.97 10.0 undecidable manual Pg 0 0 0
IV.TOLF.HHZ. 2009-04-09T18:06:55.52 10.0 undecidable manual Pg 0 0 0
IV.CING.HHZ. 2009-04-09T18:06:54.65 10.0 undecidable manual Pg 0 0 0
IV.SDI.SHZ. 2009-04-09T18:06:54.44 0.1 undecidable manual Sg 156 69.8745 0.358 85
IV.NRCA.HHZ. 2009-04-09T18:06:53.71 0.3 undecidable manual Sg 335 67.1772 0.353 64
IV.LPEL.HHZ. 2009-04-09T18:06:52.81 0.6 undecidable manual Sg 114 64.5909 0.148 45
IV.SNTG.SHZ. 2009-04-09T18:06:52.86 10.0 undecidable manual Pg 0 0 0
IV.ASSB.HHZ. 2009-04-09T18:06:51.13 0.3 undecidable manual Pg 322 106.7154 0.384 59
IV.RMP.HHE. 2009-04-09T18:06:50.15 10.0 undecidable manual Pg 0 0 0
IV.VVLD.HHZ. 2009-04-09T18:06:49.10 0.3 undecidable manual Sg 164 48.0186 0.879 55
IV.CESX.HHZ. 2009-04-09T18:06:49.22 10.0 undecidable manual Pg 0 0 0
IV.GIUL.HHE. 2009-04-09T18:06:48.45 10.0 undecidable manual Pg 0 0 0
IV.MIDA.HHN. 2009-04-09T18:06:48.70 0.3 undecidable manual Pg 137 96.5256 -0.48 59
IV.CESI.HHN. 2009-04-09T18:06:48.03 0.3 undecidable manual Pg 330 91.9413 -0.444 60
IV.RNI2.HHE. 2009-04-09T18:06:47.95 0.3 undecidable manual Pg 139 85.8474 0.416 61
IV.FDMO.HHZ. 2009-04-09T18:06:47.81 0.3 undecidable manual Pg 340 88.8444 -0.176 64
IV.INTR.HHZ. 2009-04-09T18:06:47.91 0.1 undecidable manual Sg 130 47.1195 -0.095 93
IV.CERA.HHZ. 2009-04-09T18:06:47.53 0.3 undecidable manual Pg 149 88.8444 -0.467 60
IV.OFFI.HHZ. 2009-04-09T18:06:46.69 0.1 undecidable manual Pg 14 74.1702 0.965 67
IV.TERO.HHZ. 2009-04-09T18:06:45.54 0.1 undecidable manual Sg 17 38.9277 -0.283 91
IV.SDI.SHZ. 2009-04-09T18:06:45.02 0.1 undecidable manual Pg 156 69.8745 -0.056 90
IV.NRCA.HHZ. 2009-04-09T18:06:44.57 0.1 positive manual Pg 335 67.1772 -0.086 90
IV.VCEL.EHZ. 2009-04-09T18:06:44.53 0.1 undecidable manual Sg 68 32.9448 0.331 91
IV.POFI.HHN. 2009-04-09T18:06:44.60 0.3 undecidable manual Pg 162 66.2781 0.092 68
IV.MTCE.HHZ. 2009-04-09T18:06:44.38 0.3 undecidable manual Pg 244 66.378 -0.151 67
IV.MNS.HHZ. 2009-04-09T18:06:44.37 0.3 undecidable manual Pg 280 65.3901 -0.004 69
IV.LPEL.HHZ. 2009-04-09T18:06:43.93 0.1 undecidable manual Pg 114 64.5909 -0.325 86
IV.PTQR.SHZ. 2009-04-09T18:06:43.10 0.1 undecidable manual Sg 191 29.8479 -0.278 93
IV.FIAM.HHZ. 2009-04-09T18:06:42.86 0.1 undecidable manual Sg 266 28.749 -0.242 94
IV.CERT.HHZ. 2009-04-09T18:06:42.58 0.1 undecidable manual Pg 227 54.7008 -0.153 91
IV.VVLD.HHZ. 2009-04-09T18:06:42.20 0.1 undecidable manual Pg 164 48.0186 0.508 85
IV.CAMP.HHZ. 2009-04-09T18:06:42.59 0.1 undecidable manual Sg 350 28.0497 -0.325 92
IV.LNSS.HHN. 2009-04-09T18:06:42.47 0.1 undecidable manual Pg 315 49.5171 0.536 84
IV.GUAR.HHE. 2009-04-09T18:06:42.70 0.1 undecidable manual Pg 193 55.9995 -0.233 89
IV.INTR.HHZ. 2009-04-09T18:06:41.41 0.1 positive manual Pg 130 47.1195 -0.156 92
IV.VCEL.EHZ. 2009-04-09T18:06:39.29 0.1 undecidable manual Pg 68 32.9448 -0.08 96
IV.TERO.HHZ. 2009-04-09T18:06:39.87 0.1 undecidable manual Pg 17 38.9277 -0.435 88
IV.PTQR.SHZ. 2009-04-09T18:06:38.74 0.1 positive manual Pg 191 29.8479 -0.157 95
IV.FIAM.HHZ. 2009-04-09T18:06:38.87 0.1 positive manual Pg 266 28.749 0.136 96
IV.CAMP.HHZ. 2009-04-09T18:06:38.51 0.1 undecidable manual Pg 350 28.0497 -0.115 96
IV.FAGN.HHZ. 2009-04-09T18:06:37.36 0.1 undecidable manual Sg 103 9.879 -0.335 95
MN.AQU.HHZ. 2009-04-09T18:06:37.64 0.1 undecidable manual Sg 325 9.1797 0.098 100
IV.FAGN.HHZ. 2009-04-09T18:06:35.69 0.1 positive manual Pg 103 9.879 0.079 100
MN.AQU.HHZ. 2009-04-09T18:06:35.84 0.1 negative manual Pg 325 9.1797 0.315 95
IV.SBPO.HHE. 2009-04-09T18:06:01.71 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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