Earthquake with magnitude of ML 2.1 on date 07-04-2009 and time 08:55:07 (UTC) in region 3 km SW Ocre (AQ)

A magnitude ML 2.1 earthquake occured in region: 3 km SW Ocre (AQ), on

  • 07-04-2009 08:55:07 (UTC)
  • 07-04-2009 10:55:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.2660, 13.4520 at 3 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
Rocca di Cambio AQ 4 533 1700
Fossa AQ 4 721 2421
Sant'Eusanio Forconese AQ 7 394 2815
Villa Sant'Angelo AQ 7 424 3239
Rocca di Mezzo AQ 9 1526 4765
San Demetrio ne' Vestini AQ 9 1854 6619
Poggio Picenze AQ 10 1136 7755
Lucoli AQ 10 1011 8766
Fagnano Alto AQ 10 418 9184
L'Aquila AQ 11 69753 78937
Tornimparte AQ 13 3187 82124
Prata d'Ansidonia AQ 13 496 82620
Fontecchio AQ 13 369 82989
Barisciano AQ 13 1828 84817
Ovindoli AQ 16 1227 86044
Tione degli Abruzzi AQ 17 310 86354
San Pio delle Camere AQ 17 661 87015
Massa d'Albe AQ 18 1476 88491
Santo Stefano di Sessanio AQ 18 111 88602
Caporciano AQ 18 230 88832
Carapelle Calvisio AQ 20 87 88919
Borgorose RI 20 4591 93510
Scoppito AQ 20 3727 97237

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km SE of L'Aquila (69753 inhabitants)
49 Km SW of Teramo (54892 inhabitants)
60 Km W of Chieti (51815 inhabitants)
63 Km NE of Tivoli (56533 inhabitants)
64 Km W of Montesilvano (53738 inhabitants)
67 Km W of Pescara (121014 inhabitants)
67 Km E of Guidonia Montecelio (88673 inhabitants)
74 Km E of Terni (111501 inhabitants)
85 Km NE of Velletri (53303 inhabitants)
90 Km E of Roma (2864731 inhabitants)
98 Km SE of Foligno (57155 inhabitants)
100 Km NE of Latina (125985 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 1.4
ML 2.1
2009-04-07
08:55:07
42.266 13.452 3 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 766439
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-07 08:55:07 ± 0.17
Latitude 42.2660 ± 0.0045
Longitude 13.4520 ± 0.0061
Depth (km) 3 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 766439

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 524
Semi-minor axis of confidence ellipse (meter) 115
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 163
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) 99
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.37412
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 766439
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:29:52

Md:1.4

Field Value
Value 1.4
Uncertainty 0.0
Num. used stations
Type of magnitude Md
Reference to an origin 766439
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:29:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHE. 2009-04-07T08:55:21.85 0.1 undecidable manual Sg 17 41.5251 -0.036 97
IV.FIAM.HHE. 2009-04-07T08:55:17.26 0.1 undecidable manual Sg 271 27.4503 0.223 96
IV.PTQR.SHZ. 2009-04-07T08:55:16.46 0.6 undecidable manual Sg 189 27.4503 -0.562 44
IV.TERO.HHE. 2009-04-07T08:55:15.63 0.1 undecidable manual Pg 17 41.5251 -0.153 95
IV.VCEL.EHZ. 2009-04-07T08:55:14.45 0.1 undecidable manual Pg 66 34.9428 -0.028 99
IV.FIAM.HHE. 2009-04-07T08:55:13.35 0.1 undecidable manual Pg 271 27.4503 0.366 93
IV.PTQR.SHZ. 2009-04-07T08:55:12.75 0.1 undecidable manual Pg 189 27.4503 -0.226 96
IV.FAGN.HHN. 2009-04-07T08:55:11.54 0.1 undecidable manual Sg 90 10.878 0.165 100
MN.AQU.HHZ. 2009-04-07T08:55:10.92 0.3 undecidable manual Sg 337 10.5783 -0.353 72
IV.FAGN.HHN. 2009-04-07T08:55:09.97 0.1 undecidable manual Pg 90 10.878 0.256 98
MN.AQU.HHZ. 2009-04-07T08:55:09.59 0.3 undecidable manual Pg 337 10.5783 -0.066 77
IV.ZCCA.HHE. 2009-04-07T08:54:38.84 10.0 undecidable manual Pg 0 0 0
IV.ASSB.HHE. 2009-04-07T08:53:48.52 10.0 undecidable manual Pg 0 0 0
IV.CERA.HHE. 2009-04-07T08:53:48.81 10.0 undecidable manual Pg 0 0 0
IV.OFFI.HHE. 2009-04-07T08:53:45.90 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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