Earthquake with magnitude of ML 1.3 on date 07-04-2009 and time 16:07:51 (Italy) in region 5 km W Ocre (AQ)

A magnitude ML 1.3 earthquake occured in region: 5 km W Ocre (AQ), on

  • 07-04-2009 14:07:51 (UTC)
  • 07-04-2009 16:07:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.2920, 13.4100 at 4 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 5 1167 1167
Lucoli AQ 6 1011 2178
Fossa AQ 7 721 2899
L'Aquila AQ 7 69753 72652
Tornimparte AQ 9 3187 75839
Rocca di Cambio AQ 9 533 76372
Sant'Eusanio Forconese AQ 10 394 76766
Villa Sant'Angelo AQ 11 424 77190
Poggio Picenze AQ 11 1136 78326
San Demetrio ne' Vestini AQ 12 1854 80180
Rocca di Mezzo AQ 13 1526 81706
Fagnano Alto AQ 14 418 82124
Scoppito AQ 15 3727 85851
Barisciano AQ 16 1828 87679
Prata d'Ansidonia AQ 16 496 88175
Fontecchio AQ 18 369 88544
Borgorose RI 18 4591 93135
Pizzoli AQ 19 4326 97461
Ovindoli AQ 20 1227 98688

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km S of L'Aquila (69753 inhabitants)
48 Km SW of Teramo (54892 inhabitants)
62 Km NE of Tivoli (56533 inhabitants)
63 Km W of Chieti (51815 inhabitants)
65 Km NE of Guidonia Montecelio (88673 inhabitants)
66 Km W of Montesilvano (53738 inhabitants)
69 Km W of Pescara (121014 inhabitants)
69 Km E of Terni (111501 inhabitants)
85 Km NE of Velletri (53303 inhabitants)
88 Km NE of Roma (2864731 inhabitants)
94 Km SE of Foligno (57155 inhabitants)
100 Km NE of Aprilia (73446 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 1.3
2009-04-07
14:07:51
42.292 13.41 4 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 767579
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-07 14:07:51 ± 0.12
Latitude 42.2920 ± 0.0045
Longitude 13.4100 ± 0.0073
Depth (km) 4 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 767579

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 632
Semi-minor axis of confidence ellipse (meter) 474
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 273
Circular confidence region, given by single value of horizontal uncertainty (meter) 781.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 172
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.06205
Epicentral distance of station farthest from the epicenter (degree) 0.45056
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 767579
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:31:14

Md:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 767579
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:31:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VCEL.EHN. 2009-04-07T14:08:03.98 0.1 undecidable manual Sg 72 37.0296 -0.046 95
IV.VVLD.HHN. 2009-04-07T14:08:01.02 0.6 undecidable manual Pg 159 50.0166 -0.091 46
IV.PTQR.SHZ. 2009-04-07T14:08:01.34 0.1 undecidable manual Sg 182 29.9478 -0.24 92
IV.VCEL.EHN. 2009-04-07T14:07:58.66 0.6 undecidable manual Pg 72 37.0296 0.104 47
IV.PTQR.SHZ. 2009-04-07T14:07:57.37 0.1 undecidable manual Pg 182 29.9478 0.228 92
IV.FAGN.HHE. 2009-04-07T14:07:56.07 0.1 undecidable manual Sg 102 14.5743 -0.255 94
IV.FAGN.HHE. 2009-04-07T14:07:54.59 0.1 undecidable manual Pg 102 14.5743 0.481 90
MN.AQU.HHZ. 2009-04-07T14:07:53.75 0.1 undecidable manual Sg 354 6.8931 -0.108 99
MN.AQU.HHZ. 2009-04-07T14:07:52.65 0.1 undecidable manual Pg 354 6.8931 -0.036 100
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