Earthquake with magnitude of ML 1.8 on date 07-04-2009 and time 00:35:24 (Italy) in region 2 km NW Ocre (AQ)

A magnitude ML 1.8 earthquake occured in region: 2 km NW Ocre (AQ), on

  • 06-04-2009 22:35:24 (UTC)
  • 07-04-2009 00:35:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3, 13.46 at 8 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
Sant'Eusanio Forconese AQ 6 394 2282
Poggio Picenze AQ 7 1136 3418
Villa Sant'Angelo AQ 7 424 3842
Rocca di Cambio AQ 7 533 4375
L'Aquila AQ 8 69753 74128
San Demetrio ne' Vestini AQ 8 1854 75982
Lucoli AQ 10 1011 76993
Fagnano Alto AQ 11 418 77411
Barisciano AQ 11 1828 79239
Rocca di Mezzo AQ 11 1526 80765
Prata d'Ansidonia AQ 12 496 81261
Tornimparte AQ 13 3187 84448
Fontecchio AQ 14 369 84817
Santo Stefano di Sessanio AQ 16 111 84928
San Pio delle Camere AQ 16 661 85589
Tione degli Abruzzi AQ 18 310 85899
Caporciano AQ 18 230 86129
Scoppito AQ 18 3727 89856
Carapelle Calvisio AQ 19 87 89943
Castelvecchio Calvisio AQ 19 153 90096
Ovindoli AQ 19 1227 91323
Calascio AQ 20 137 91460

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km SE of L'Aquila (69753 inhabitants)
45 Km SW of Teramo (54892 inhabitants)
59 Km W of Chieti (51815 inhabitants)
62 Km W of Montesilvano (53738 inhabitants)
65 Km W of Pescara (121014 inhabitants)
66 Km NE of Tivoli (56533 inhabitants)
69 Km E of Guidonia Montecelio (88673 inhabitants)
73 Km E of Terni (111501 inhabitants)
88 Km NE of Velletri (53303 inhabitants)
92 Km NE of Roma (2864731 inhabitants)
96 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
ML 1.8 2009-04-06
22:35:24
42.3 13.46 8 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 763729
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 22:35:24 ± 0.16
Latitude 42.30 ± 0.01
Longitude 13.46 ± 0.01
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 763729

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1021
Semi-minor axis of confidence ellipse (meter) 1020
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 284
Circular confidence region, given by single value of horizontal uncertainty (meter) 1562
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 59
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.8
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.78511
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 763729
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:26:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MURB.HHN. 2009-04-06T22:37:00.19 10.0 undecidable manual Sg 0 0 0
IV.CING.HHZ. 2009-04-06T22:36:56.79 10.0 undecidable manual Sg 0 0 0
IV.MURB.HHN. 2009-04-06T22:36:49.02 10.0 undecidable manual Pg 0 0 0
IV.MGAB.HHE. 2009-04-06T22:36:48.15 10.0 undecidable manual Pg 0 0 0
IV.GIUL.HHN. 2009-04-06T22:36:45.66 10.0 undecidable manual Pg 0 0 0
IV.GUAR.HHE. 2009-04-06T22:36:44.77 10.0 undecidable manual Sg 0 0 0
IV.ASSB.HHZ. 2009-04-06T22:36:43.40 10.0 undecidable manual Sg 0 0 0
IV.CING.HHZ. 2009-04-06T22:36:43.50 10.0 undecidable manual Pg 0 0 0
IV.CESI.HHE. 2009-04-06T22:36:41.11 10.0 undecidable manual Sg 0 0 0
IV.ASSB.HHZ. 2009-04-06T22:36:39.18 10.0 undecidable manual Pg 0 0 0
IV.GUAR.HHE. 2009-04-06T22:36:36.40 10.0 undecidable manual Pg 0 0 0
IV.CESI.HHE. 2009-04-06T22:36:36.90 10.0 undecidable manual Pg 0 0 0
IV.NRCA.SHZ. 2009-04-06T22:36:32.38 10.0 undecidable manual Pg 0 0 0
IV.CDCA.EHE. 2009-04-06T22:36:08.68 10.0 undecidable manual Pg 0 0 0
IV.CERT.HHN. 2009-04-06T22:35:42.41 0.6 undecidable manual Sg 225 0.4982 -0.282 46
IV.VVLD.HHE. 2009-04-06T22:35:41.59 1.0 undecidable manual Sg 164 0.447 0.416 23
IV.INTR.HHZ. 2009-04-06T22:35:40.87 0.3 undecidable manual Sg 131 0.438 -0.058 74
IV.FDMO.HHZ. 2009-04-06T22:35:40.96 0.3 undecidable manual Pg 340 0.7851 0.886 53
IV.TERO.HHZ. 2009-04-06T22:35:38.43 0.6 undecidable manual Sg 18 0.3399 0.411 47
IV.OFFI.HHZ. 2009-04-06T22:35:38.73 0.3 undecidable manual Pg 15 0.6565 0.855 56
.PTQR.---. 2009-04-06T22:35:36.96 0.6 undecidable manual Sg 189 0.2806 0.896 39
IV.CERT.HHN. 2009-04-06T22:35:35.12 0.1 undecidable manual Pg 225 0.4982 -0.04 98
IV.MNS.HHE. 2009-04-06T22:35:34.17 10.0 undecidable manual Pg 0 0 0
IV.VVLD.HHE. 2009-04-06T22:35:34.21 0.3 undecidable manual Pg 164 0.447 -0.073 74
.CAMP.---. 2009-04-06T22:35:33.56 0.3 undecidable manual Sg 351 0.2383 -0.942 58
IV.FIAM.HHZ. 2009-04-06T22:35:33.35 0.3 undecidable manual Sg 263 0.2545 -1.732 37
IV.INTR.HHZ. 2009-04-06T22:35:33.16 0.3 undecidable manual Pg 131 0.438 -0.982 55
IV.TERO.HHZ. 2009-04-06T22:35:32.22 0.3 undecidable manual Pg 18 0.3399 -0.242 73
.PTQR.---. 2009-04-06T22:35:32.57 0.1 undecidable manual Pg 189 0.2806 1.238 67
IV.VCEL.EHZ. 2009-04-06T22:35:31.62 0.6 undecidable manual Pg 71 0.2977 -0.074 51
IV.FIAM.HHZ. 2009-04-06T22:35:30.20 0.1 undecidable manual Pg 263 0.2545 -0.563 91
.CAMP.---. 2009-04-06T22:35:30.25 0.1 undecidable manual Pg 351 0.2383 -0.181 100
IV.FAGN.HHZ. 2009-04-06T22:35:29.03 0.6 undecidable manual Sg 110 0.0989 -0.601 46
MN.AQU.HHZ. 2009-04-06T22:35:29.42 0.1 undecidable manual Sg 322 0.0683 0.648 91
MN.AQU.HHZ. 2009-04-06T22:35:27.73 0.1 undecidable manual Pg 322 0.0683 0.604 93
IV.FAGN.HHZ. 2009-04-06T22:35:27.10 0.3 undecidable manual Pg 110 0.0989 -0.517 71
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FAGN.HHN. ML:1.7 0.00065 0.31 AML other m 2009-04-06T22:35:27.10
IV.FAGN.HHE. ML:1.7 0.00065 0.31 AML other m 2009-04-06T22:35:27.10
IV.FIAM.HHN. ML:2 0.0005 0.57 AML other m 2009-04-06T22:35:30.20
IV.FIAM.HHE. ML:2 0.0005 0.57 AML other m 2009-04-06T22:35:30.20
IV.VCEL.EHN. ML:1.8 0.000465 0.36 AML other m 2009-04-06T22:35:31.62
IV.VCEL.EHE. ML:1.8 0.00054 0.28 AML other m 2009-04-06T22:35:31.62
IV.TERO.HHN. ML:2 0.00048 0.12 AML other m 2009-04-06T22:35:32.22
IV.TERO.HHE. ML:2 0.00055 0.34 AML other m 2009-04-06T22:35:32.22
IV.INTR.HHN. ML:1.6 0.000185 0.3 AML other m 2009-04-06T22:35:33.16
IV.INTR.HHE. ML:1.6 0.000155 0.28 AML other m 2009-04-06T22:35:33.16
IV.MNS.HHN. ML:0 0.0001 0.44 AML other m 2009-04-06T22:35:34.17
IV.MNS.HHE. ML:0 0.000105 0.22 AML other m 2009-04-06T22:35:34.17
IV.VVLD.HHN. ML:1.3 0.000105 0.6 AML other m 2009-04-06T22:35:34.21
IV.VVLD.HHE. ML:1.3 0.000105 0.56 AML other m 2009-04-06T22:35:34.21
IV.CERT.HHN. ML:2 0.00026 0.16 AML other m 2009-04-06T22:35:35.12
IV.CERT.HHE. ML:2 0.00027 0.24 AML other m 2009-04-06T22:35:35.12
IV.OFFI.HHN. ML:0 0.00075 0.4 AML other m 2009-04-06T22:35:38.73
IV.OFFI.HHE. ML:0 0.00081 0.76 AML other m 2009-04-06T22:35:38.73
IV.FDMO.HHN. ML:1.7 5.5E-5 0.14 AML other m 2009-04-06T22:35:40.96
IV.FDMO.HHE. ML:1.7 6.5E-5 0.28 AML other m 2009-04-06T22:35:40.96
IV.NRCA.SHZ. Md:0 39 END duration s
IV.GUAR.HHN. ML:0 8.5E-5 0.26 AML other m 2009-04-06T22:36:36.40
IV.GUAR.HHE. Md:0 35 END duration s
IV.CESI.HHN. ML:0 2.5E-5 0.36 AML other m 2009-04-06T22:36:36.90
IV.CESI.HHE. Md:0 28 END duration s
IV.ASSB.HHN. ML:0 7.5E-5 0.22 AML other m 2009-04-06T22:36:39.18
IV.ASSB.HHE. ML:0 8.0E-5 0.32 AML other m 2009-04-06T22:36:39.18
IV.CING.HHN. ML:0 6.0E-5 0.16 AML other m 2009-04-06T22:36:43.50
IV.CING.HHE. ML:0 5.0E-5 0.28 AML other m 2009-04-06T22:36:43.50
IV.CDCA.EHE. Md:0 19 END duration s
IV.ASSB.HHZ. Md:0 40 END duration s
IV.GIUL.HHN. Md:0 26 END duration s
IV.MGAB.HHE. Md:0 34 END duration s
IV.MURB.HHN. Md:0 33 END duration s
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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