Earthquake with magnitude of ML 1.9 on date 06-04-2009 and time 21:18:44 (Italy) in region 4 km N Fossa (AQ)

A magnitude ML 1.9 earthquake occured in region: 4 km N Fossa (AQ), on

  • 06-04-2009 19:18:44 (UTC)
  • 06-04-2009 21:18:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3260, 13.4770 at 9 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
Fossa AQ 4 721 721
Ocre AQ 5 1167 1888
Poggio Picenze AQ 6 1136 3024
Sant'Eusanio Forconese AQ 6 394 3418
L'Aquila AQ 7 69753 73171
San Demetrio ne' Vestini AQ 8 1854 75025
Villa Sant'Angelo AQ 8 424 75449
Barisciano AQ 9 1828 77277
Rocca di Cambio AQ 10 533 77810
Fagnano Alto AQ 11 418 78228
Prata d'Ansidonia AQ 12 496 78724
Lucoli AQ 12 1011 79735
Rocca di Mezzo AQ 14 1526 81261
Santo Stefano di Sessanio AQ 14 111 81372
Fontecchio AQ 15 369 81741
Tornimparte AQ 15 3187 84928
San Pio delle Camere AQ 15 661 85589
Carapelle Calvisio AQ 17 87 85676
Castelvecchio Calvisio AQ 18 153 85829
Caporciano AQ 18 230 86059
Calascio AQ 18 137 86196
Tione degli Abruzzi AQ 19 310 86506
Scoppito AQ 19 3727 90233
Pizzoli AQ 19 4326 94559

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km E of L'Aquila (69753 inhabitants)
42 Km SW of Teramo (54892 inhabitants)
57 Km W of Chieti (51815 inhabitants)
59 Km W of Montesilvano (53738 inhabitants)
63 Km W of Pescara (121014 inhabitants)
69 Km NE of Tivoli (56533 inhabitants)
72 Km NE of Guidonia Montecelio (88673 inhabitants)
73 Km E of Terni (111501 inhabitants)
92 Km NE of Velletri (53303 inhabitants)
94 Km SE of Foligno (57155 inhabitants)
95 Km NE 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
19:18:44
42.326 13.477 9 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 762219
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 19:18:44 ± 0.11
Latitude 42.3260 ± 0.0072
Longitude 13.4770 ± 0.0073
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 762219

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 802
Semi-minor axis of confidence ellipse (meter) 161
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 26
Circular confidence region, given by single value of horizontal uncertainty (meter) 1000.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.42
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.57377
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 762219
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:24:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.SHZ. 2009-04-06T19:19:04.27 0.1 undecidable manual Sg 332 63.6918 0.238 89
IV.INTR.HHE. 2009-04-06T19:19:00.72 0.1 undecidable manual Sg 135 49.5171 0.469 87
IV.VVLD.HHZ. 2009-04-06T19:18:55.01 10.0 undecidable manual Sg 0 0 0
IV.FIAM.HHZ. 2009-04-06T19:18:55.29 0.1 undecidable manual Sg 258 30.2475 0.344 92
IV.NRCA.SHZ. 2009-04-06T19:18:54.88 0.1 undecidable manual Pg 332 63.6918 -0.701 78
IV.VCEL.EHZ. 2009-04-06T19:18:54.93 0.1 undecidable manual Sg 75 30.747 -0.193 95
.CAMP.---. 2009-04-06T19:18:52.91 0.3 undecidable manual Sg 347 23.9538 0.026 75
IV.INTR.HHE. 2009-04-06T19:18:52.85 0.1 undecidable manual Pg 135 49.5171 -0.547 85
IV.SDI.SHZ. 2009-04-06T19:18:51.52 10.0 undecidable manual Pg 0 0 0
IV.VCEL.EHZ. 2009-04-06T19:18:51.00 0.1 undecidable manual Pg 75 30.747 0.562 87
IV.FIAM.HHZ. 2009-04-06T19:18:50.35 0.1 undecidable manual Pg 258 30.2475 0.016 99
IV.PTQR.SHZ. 2009-04-06T19:18:50.77 0.1 undecidable manual Pg 191 34.2435 -0.28 93
.CAMP.---. 2009-04-06T19:18:49.42 0.3 undecidable manual Pg 347 23.9538 0.278 71
IV.FAGN.HHN. 2009-04-06T19:18:48.76 0.1 undecidable manual Sg 127 10.9779 -0.127 100
MN.AQU.HHN. 2009-04-06T19:18:47.50 0.1 undecidable manual Sg 297 6.8931 -0.377 96
MN.AQU.HHN. 2009-04-06T19:18:46.44 0.1 undecidable manual Pg 297 6.8931 0.183 100
IV.FAGN.HHN. 2009-04-06T19:18:46.97 0.1 undecidable manual Pg 127 10.9779 0.132 100
IV.VVLD.HHZ. 2009-04-06T19:18:45.25 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