Earthquake with magnitude of ML 1.9 on date 06-04-2009 and time 23:41:43 (Italy) in region 2 km SE Ocre (AQ)

A magnitude ML 1.9 earthquake occured in region: 2 km SE Ocre (AQ), on

  • 06-04-2009 21:41:43 (UTC)
  • 06-04-2009 23:41:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.2680, 13.4890 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 2 1167 1167
Fossa AQ 3 721 1888
Rocca di Cambio AQ 3 533 2421
Sant'Eusanio Forconese AQ 4 394 2815
Villa Sant'Angelo AQ 4 424 3239
San Demetrio ne' Vestini AQ 6 1854 5093
Rocca di Mezzo AQ 7 1526 6619
Fagnano Alto AQ 7 418 7037
Poggio Picenze AQ 7 1136 8173
Prata d'Ansidonia AQ 10 496 8669
Fontecchio AQ 11 369 9038
Barisciano AQ 11 1828 10866
L'Aquila AQ 12 69753 80619
Lucoli AQ 13 1011 81630
San Pio delle Camere AQ 14 661 82291
Tione degli Abruzzi AQ 14 310 82601
Ovindoli AQ 15 1227 83828
Caporciano AQ 15 230 84058
Santo Stefano di Sessanio AQ 16 111 84169
Tornimparte AQ 16 3187 87356
Carapelle Calvisio AQ 16 87 87443
Castelvecchio Calvisio AQ 17 153 87596
Calascio AQ 18 137 87733
Massa d'Albe AQ 19 1476 89209

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km SE of L'Aquila (69753 inhabitants)
47 Km SW of Teramo (54892 inhabitants)
57 Km W of Chieti (51815 inhabitants)
61 Km W of Montesilvano (53738 inhabitants)
64 Km W of Pescara (121014 inhabitants)
66 Km NE of Tivoli (56533 inhabitants)
70 Km E of Guidonia Montecelio (88673 inhabitants)
76 Km E of Terni (111501 inhabitants)
87 Km NE of Velletri (53303 inhabitants)
93 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 1.9 2009-04-06
21:41:43
42.268 13.489 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 763269
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 21:41:43 ± 0.1
Latitude 42.2680 ± 0.0063
Longitude 13.4890 ± 0.0085
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 763269

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 756
Semi-minor axis of confidence ellipse (meter) 619
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 55
Circular confidence region, given by single value of horizontal uncertainty (meter) 989.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 53
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.47
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.68259
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 763269
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:26:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.SHZ. 2009-04-06T21:42:05.12 0.6 undecidable manual Sg 334 69.7746 0.72 37
IV.INTR.HHZ. 2009-04-06T21:41:57.85 0.6 undecidable manual Sg 130 44.5221 0.22 45
IV.OFFI.HHZ. 2009-04-06T21:41:56.32 0.6 undecidable manual Pg 12 75.7686 0 45
IV.TERO.HHN. 2009-04-06T21:41:55.80 0.3 undecidable manual Sg 13 40.5261 -0.773 58
IV.NRCA.SHZ. 2009-04-06T21:41:55.57 0.6 undecidable manual Pg 334 69.7746 0.164 44
.CAMP.---. 2009-04-06T21:41:53.54 0.6 undecidable manual Sg 348 30.4473 -0.345 45
IV.FIAM.HHN. 2009-04-06T21:41:53.89 0.3 undecidable manual Sg 270 30.4473 -0.007 73
IV.CERT.HHE. 2009-04-06T21:41:52.98 0.3 undecidable manual Pg 230 54.7008 -0.096 68
.PTQR.---. 2009-04-06T21:41:52.33 0.6 undecidable manual Sg 195 28.2495 -0.961 36
IV.INTR.HHZ. 2009-04-06T21:41:51.48 0.1 undecidable manual Pg 130 44.5221 -0.024 94
.VVLD.---. 2009-04-06T21:41:51.60 0.3 undecidable manual Pg 166 45.5211 -0.061 70
IV.TERO.HHN. 2009-04-06T21:41:50.63 0.3 undecidable manual Pg 13 40.5261 -0.255 68
.CAMP.---. 2009-04-06T21:41:50.03 0.6 undecidable manual Pg 348 30.4473 0.694 40
IV.VCEL.EHZ. 2009-04-06T21:41:50.20 0.3 undecidable manual Pg 64 32.1456 0.609 63
IV.FIAM.HHN. 2009-04-06T21:41:49.28 0.1 undecidable manual Pg 270 30.4473 -0.063 96
.PTQR.---. 2009-04-06T21:41:49.47 0.3 undecidable manual Pg 195 28.2495 0.475 66
MN.AQU.HHZ. 2009-04-06T21:41:48.56 0.3 undecidable manual Sg 323 11.877 -0.023 75
IV.FAGN.HHE. 2009-04-06T21:41:47.33 0.3 undecidable manual Sg 92 7.7811 -0.279 71
MN.AQU.HHZ. 2009-04-06T21:41:46.29 0.1 undecidable manual Pg 323 11.877 0.011 100
IV.FAGN.HHE. 2009-04-06T21:41:45.81 0.1 undecidable manual Pg 92 7.7811 0.1 99
IV.POZ.EHZ. 2009-04-06T21:41:30.38 10.0 undecidable manual Pg 0 0 0
IV.ASSB.HHN. 2009-04-06T21:41:26.73 10.0 undecidable manual Pg 0 0 0
IV.CESI.HHN. 2009-04-06T21:41:20.97 10.0 undecidable manual Pg 0 0 0
IV.GUAR.HHE. 2009-04-06T21:41:19.15 10.0 undecidable manual Pg 0 0 0
IV.MNS.HHE. 2009-04-06T21:41:11.96 10.0 undecidable manual Pg 0 0 0
OE.ARSA.HHZ. 2009-04-06T21:40:59.83 10.0 undecidable manual Pg 0 0 0
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