Earthquake with magnitude of ML 1.7 on date 09-04-2009 and time 00:08:15 (Italy) in region 3 km NW Ocre (AQ)

A magnitude ML 1.7 earthquake occured in region: 3 km NW Ocre (AQ), on

  • 08-04-2009 22:08:15 (UTC)
  • 09-04-2009 00:08:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3010, 13.4470 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
Ocre AQ 3 1167 1167
Fossa AQ 4 721 1888
Sant'Eusanio Forconese AQ 7 394 2282
L'Aquila AQ 7 69753 72035
Rocca di Cambio AQ 8 533 72568
Villa Sant'Angelo AQ 8 424 72992
Poggio Picenze AQ 8 1136 74128
Lucoli AQ 9 1011 75139
San Demetrio ne' Vestini AQ 9 1854 76993
Fagnano Alto AQ 12 418 77411
Rocca di Mezzo AQ 12 1526 78937
Tornimparte AQ 12 3187 82124
Barisciano AQ 12 1828 83952
Prata d'Ansidonia AQ 13 496 84448
Fontecchio AQ 15 369 84817
Santo Stefano di Sessanio AQ 17 111 84928
San Pio delle Camere AQ 17 661 85589
Scoppito AQ 18 3727 89316
Tione degli Abruzzi AQ 19 310 89626
Caporciano AQ 19 230 89856
Ovindoli AQ 20 1227 91083
Carapelle Calvisio AQ 20 87 91170
Pizzoli AQ 20 4326 95496

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km SE of L'Aquila (69753 inhabitants)
45 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 NE of Guidonia Montecelio (88673 inhabitants)
72 Km E of Terni (111501 inhabitants)
88 Km NE of Velletri (53303 inhabitants)
91 Km NE of Roma (2864731 inhabitants)
95 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 1.8
ML 1.7
2009-04-08
22:08:15
42.301 13.447 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 776229
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-08 22:08:15 ± 0.07
Latitude 42.3010 ± 0.0045
Longitude 13.4470 ± 0.0061
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 776229

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 614
Semi-minor axis of confidence ellipse (meter) 360
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) 707.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 141
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.58636
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 776229
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:41:23

Md:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 776229
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:41:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
BA.PZUN.HHZ. 2009-04-08T22:09:01.17 10.0 undecidable manual Sg 0 0 0
BA.PZUN.HHZ. 2009-04-08T22:08:55.90 10.0 undecidable manual Pg 0 0 0
IV.GUAR.HHZ. 2009-04-08T22:08:38.04 10.0 undecidable manual Pg 0 0 0
IV.NRCA.HHE. 2009-04-08T22:08:36.12 0.6 undecidable manual Sg 335 65.0904 0.161 45
IV.PTQR.SHZ. 2009-04-08T22:08:27.07 0.6 undecidable manual Sg 187 31.1466 0.153 48
IV.VCEL.EHN. 2009-04-08T22:08:27.53 0.6 undecidable manual Sg 72 33.9438 -0.113 49
IV.NRCA.HHE. 2009-04-08T22:08:27.41 0.1 undecidable manual Pg 335 65.0904 -0.07 93
IV.VVLD.HHE. 2009-04-08T22:08:24.93 0.3 undecidable manual Pg 163 50.0166 -0.226 69
IV.VCEL.EHN. 2009-04-08T22:08:22.71 0.3 undecidable manual Pg 72 33.9438 0.034 74
IV.PTQR.SHZ. 2009-04-08T22:08:22.13 0.6 undecidable manual Pg 187 31.1466 -0.124 49
IV.FAGN.HHZ. 2009-04-08T22:08:21.18 0.3 undecidable manual Sg 109 11.877 -0.093 76
IV.FAGN.HHZ. 2009-04-08T22:08:19.21 0.1 undecidable manual Pg 109 11.877 0.213 99
MN.AQU.HHZ. 2009-04-08T22:08:19.91 0.1 undecidable manual Sg 328 6.993 -0.199 100
MN.AQU.HHZ. 2009-04-08T22:08:18.52 0.1 undecidable manual Pg 328 6.993 0.199 100
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