Earthquake with magnitude of ML 1.8 on date 06-04-2009 and time 23:01:58 (Italy) in region 5 km N Fossa (AQ)

A magnitude ML 1.8 earthquake occured in region: 5 km N Fossa (AQ), on

  • 06-04-2009 21:01:58 (UTC)
  • 06-04-2009 23:01:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3400, 13.4760 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
Fossa AQ 5 721 721
Poggio Picenze AQ 6 1136 1857
Ocre AQ 6 1167 3024
L'Aquila AQ 6 69753 72777
Sant'Eusanio Forconese AQ 7 394 73171
San Demetrio ne' Vestini AQ 9 1854 75025
Villa Sant'Angelo AQ 9 424 75449
Barisciano AQ 10 1828 77277
Rocca di Cambio AQ 11 533 77810
Lucoli AQ 13 1011 78821
Fagnano Alto AQ 13 418 79239
Prata d'Ansidonia AQ 13 496 79735
Santo Stefano di Sessanio AQ 14 111 79846
Rocca di Mezzo AQ 15 1526 81372
Tornimparte AQ 15 3187 84559
San Pio delle Camere AQ 16 661 85220
Fontecchio AQ 16 369 85589
Carapelle Calvisio AQ 18 87 85676
Castelvecchio Calvisio AQ 18 153 85829
Calascio AQ 18 137 85966
Pizzoli AQ 18 4326 90292
Scoppito AQ 18 3727 94019
Caporciano AQ 19 230 94249
Tione degli Abruzzi AQ 20 310 94559

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km E of L'Aquila (69753 inhabitants)
40 Km SW of Teramo (54892 inhabitants)
57 Km W of Chieti (51815 inhabitants)
59 Km W of Montesilvano (53738 inhabitants)
62 Km W of Pescara (121014 inhabitants)
70 Km NE of Tivoli (56533 inhabitants)
72 Km E of Terni (111501 inhabitants)
72 Km NE of Guidonia Montecelio (88673 inhabitants)
93 Km NE of Velletri (53303 inhabitants)
93 Km SE of Foligno (57155 inhabitants)
96 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 1.8 2009-04-06
21:01:58
42.34 13.476 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 762989
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 21:01:58 ± 0.1
Latitude 42.3400 ± 0.0081
Longitude 13.4760 ± 0.0073
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 762989

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 947
Semi-minor axis of confidence ellipse (meter) 533
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 21
Circular confidence region, given by single value of horizontal uncertainty (meter) 1081.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 94
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.48294
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 762989
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:25:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MNS.HHN. 2009-04-06T21:02:23.53 10.0 undecidable manual Pg 0 0 0
.INTR.---. 2009-04-06T21:02:14.95 0.3 undecidable manual Sg 136 50.7159 0.464 64
IV.PTQR.SHZ. 2009-04-06T21:02:10.09 1.0 undecidable manual Sg 190 35.8419 -0.434 22
.FIAM.---. 2009-04-06T21:02:09.41 0.3 undecidable manual Sg 255 30.5472 0.298 69
.VVLD.---. 2009-04-06T21:02:07.51 0.6 undecidable manual Pg 167 53.6019 -0.521 42
.INTR.---. 2009-04-06T21:02:07.29 0.1 undecidable manual Pg 136 50.7159 -0.294 88
IV.PTQR.SHZ. 2009-04-06T21:02:05.05 0.6 undecidable manual Pg 190 35.8419 -0.249 46
.FIAM.---. 2009-04-06T21:02:04.51 0.3 undecidable manual Pg 255 30.5472 0.032 73
.TERO.---. 2009-04-06T21:02:04.56 0.3 undecidable manual Pg 18 33.0447 -0.302 68
IV.VCEL.EHN. 2009-04-06T21:02:04.71 0.1 undecidable manual Pg 78 30.4473 0.244 93
IV.FAGN.HHN. 2009-04-06T21:02:03.51 0.3 undecidable manual Sg 133 12.0768 0.029 75
MN.AQU.HHZ. 2009-04-06T21:02:02.08 0.3 undecidable manual Sg 284 6.2937 -0.016 76
IV.FAGN.HHN. 2009-04-06T21:02:01.30 0.3 undecidable manual Pg 133 12.0768 0.071 74
MN.AQU.HHZ. 2009-04-06T21:02:00.50 0.1 undecidable manual Pg 284 6.2937 0.073 100
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