Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 07-04-2009 and time 18:57:10 (UTC) in region 1 km W San Demetrio ne' Vestini (AQ)

A magnitude ML 2.0 earthquake occured in region: 1 km W San Demetrio ne' Vestini (AQ), on

  • 07-04-2009 18:57:10 (UTC)
  • 07-04-2009 20:57:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.2870, 13.5540 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
San Demetrio ne' Vestini AQ 1 1854 1854
Villa Sant'Angelo AQ 2 424 2278
Sant'Eusanio Forconese AQ 2 394 2672
Fagnano Alto AQ 4 418 3090
Poggio Picenze AQ 4 1136 4226
Prata d'Ansidonia AQ 5 496 4722
Fossa AQ 5 721 5443
Barisciano AQ 6 1828 7271
Ocre AQ 7 1167 8438
Fontecchio AQ 8 369 8807
Rocca di Cambio AQ 8 533 9340
San Pio delle Camere AQ 8 661 10001
Rocca di Mezzo AQ 9 1526 11527
Santo Stefano di Sessanio AQ 10 111 11638
Caporciano AQ 10 230 11868
Carapelle Calvisio AQ 11 87 11955
Tione degli Abruzzi AQ 11 310 12265
Castelvecchio Calvisio AQ 12 153 12418
Calascio AQ 13 137 12555
L'Aquila AQ 15 69753 82308
Navelli AQ 16 554 82862
Castel del Monte AQ 17 413 83275
Ovindoli AQ 17 1227 84502
Ofena AQ 18 506 85008
Lucoli AQ 18 1011 86019
Capestrano AQ 18 884 86903
Secinaro AQ 18 359 87262
Acciano AQ 18 327 87589
Villa Santa Lucia degli Abruzzi AQ 19 123 87712

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km SE of L'Aquila (69753 inhabitants)
43 Km S of Teramo (54892 inhabitants)
51 Km W of Chieti (51815 inhabitants)
55 Km W of Montesilvano (53738 inhabitants)
58 Km W of Pescara (121014 inhabitants)
72 Km NE of Tivoli (56533 inhabitants)
75 Km E of Guidonia Montecelio (88673 inhabitants)
80 Km E of Terni (111501 inhabitants)
93 Km NE of Velletri (53303 inhabitants)
99 Km E 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 2.0 2009-04-07
18:57:10		 42.287 13.554 10 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 768869
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-07 18:57:10 ± 0.06
Latitude 42.2870 ± 0.0036
Longitude 13.5540 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 768869

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 449
Semi-minor axis of confidence ellipse (meter) 202
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 60
Circular confidence region, given by single value of horizontal uncertainty (meter) 565.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.00184
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 22
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 768869
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:32:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.OFFI.HHE. 2009-04-07T18:57:37.24 10.0 undecidable manual Pg 0 0 0
IV.SGG.HHN. 2009-04-07T18:57:37.38 10.0 undecidable manual Pg 0 0 0
IV.MGAB.HHE. 2009-04-07T18:57:36.99 10.0 undecidable manual Pg 0 0 0
IV.PTRJ.HHZ. 2009-04-07T18:57:35.55 10.0 undecidable manual Pg 0 0 0
IV.SNTG.SHZ. 2009-04-07T18:57:34.63 10.0 undecidable manual Pg 0 0 0
IV.NRCA.HHZ. 2009-04-07T18:57:33.06 0.6 undecidable manual Sg 330 70.4739 0.49 42
IV.CAFR.HHN. 2009-04-07T18:57:33.88 10.0 undecidable manual Pg 0 0 0
IV.SDI.SHZ. 2009-04-07T18:57:32.16 0.6 undecidable manual Sg 162 67.377 0.411 43
IV.GIUL.HHZ. 2009-04-07T18:57:30.14 10.0 undecidable manual Pg 0 0 0
IV.ASSB.HHZ. 2009-04-07T18:57:30.00 0.3 undecidable manual Pg 319 111.1998 0.299 61
IV.CESI.HHZ. 2009-04-07T18:57:27.32 0.1 undecidable manual Pg 327 95.6376 0.011 89
IV.MIDA.HHZ. 2009-04-07T18:57:26.73 0.1 undecidable manual Pg 141 91.9413 -0.006 90
IV.FDMO.HHZ. 2009-04-07T18:57:26.45 0.1 undecidable manual Pg 336 91.4418 -0.207 86
IV.RNI2.HHE. 2009-04-07T18:57:25.59 0.1 undecidable manual Pg 142 81.3519 0.487 83
IV.CERA.HHZ. 2009-04-07T18:57:25.52 0.1 undecidable manual Pg 153 85.4478 -0.216 87
IV.INTR.HHZ. 2009-04-07T18:57:25.38 0.6 undecidable manual Sg 137 42.0246 0.419 45
IV.TERO.HHZ. 2009-04-07T18:57:23.35 0.6 undecidable manual Sg 6 37.5291 -0.411 46
IV.FIAM.HHZ. 2009-04-07T18:57:23.37 0.6 undecidable manual Sg 267 35.9418 0.024 50
IV.NRCA.HHZ. 2009-04-07T18:57:23.32 0.1 undecidable manual Pg 330 70.4739 -0.108 92
IV.MNS.HHZ. 2009-04-07T18:57:23.89 0.6 undecidable manual Pg 279 72.372 0.165 45
IV.SDI.SHZ. 2009-04-07T18:57:22.79 0.1 undecidable manual Pg 162 67.377 -0.162 91
IV.POFI.HHN. 2009-04-07T18:57:22.54 0.1 undecidable manual Pg 168 64.491 0.036 94
IV.PTQR.SHZ. 2009-04-07T18:57:22.13 0.6 undecidable manual Sg 203 31.9458 -0.159 49
IV.CERT.HHZ. 2009-04-07T18:57:21.95 0.1 undecidable manual Pg 232 60.1953 0.114 93
IV.VCEL.EHZ. 2009-04-07T18:57:21.14 0.3 undecidable manual Sg 63 26.3514 0.487 69
IV.GUAR.HHZ. 2009-04-07T18:57:21.63 0.6 undecidable manual Pg 200 58.0974 0.11 47
IV.CAMP.HHZ. 2009-04-07T18:57:21.62 0.6 undecidable manual Sg 337 30.0477 -0.163 49
IV.LNSS.HHZ. 2009-04-07T18:57:20.96 0.3 undecidable manual Pg 310 54.7008 -0.041 72
IV.VVLD.HHZ. 2009-04-07T18:57:19.68 0.1 undecidable manual Pg 173 46.62 -0.07 96
IV.FIAM.HHZ. 2009-04-07T18:57:18.08 0.1 undecidable manual Pg 267 35.9418 -0.022 99
IV.INTR.HHZ. 2009-04-07T18:57:18.95 0.1 undecidable manual Pg 137 42.0246 -0.083 97
MN.AQU.HHZ. 2009-04-07T18:57:17.34 0.6 undecidable manual Sg 301 14.5743 0.39 48
IV.PTQR.SHZ. 2009-04-07T18:57:17.34 0.1 undecidable manual Pg 203 31.9458 -0.149 97
IV.TERO.HHZ. 2009-04-07T18:57:17.95 0.1 undecidable manual Pg 6 37.5291 -0.389 92
IV.CAMP.HHZ. 2009-04-07T18:57:17.13 0.1 undecidable manual Pg 337 30.0477 -0.065 99
IV.VCEL.EHZ. 2009-04-07T18:57:16.62 0.1 undecidable manual Pg 63 26.3514 0.07 100
MN.AQU.HHZ. 2009-04-07T18:57:14.79 0.1 undecidable manual Pg 301 14.5743 0.378 96
IV.FAGN.HHZ. 2009-04-07T18:57:14.08 0.6 undecidable manual Sg 134 3.3966 -0.344 49
IV.FAGN.HHZ. 2009-04-07T18:57:12.49 0.1 positive manual Pg 134 3.3966 -0.457 96
IV.MRB1.HHN. 2009-04-07T18:57:07.07 10.0 undecidable manual Pg 0 0 0
GE.MATE.HHN. 2009-04-07T18:56:45.70 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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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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