Earthquake with magnitude of ML 1.8 on date 06-04-2009 and time 23:00:52 (Italy) in region 8 km NW Poggio Picenze (AQ)

A magnitude ML 1.8 earthquake occured in region: 8 km NW Poggio Picenze (AQ), on

  • 06-04-2009 21:00:52 (UTC)
  • 06-04-2009 23:00:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3840, 13.4900 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
Poggio Picenze AQ 8 1136 1136
L'Aquila AQ 8 69753 70889
Fossa AQ 10 721 71610
Barisciano AQ 10 1828 73438
Sant'Eusanio Forconese AQ 11 394 73832
Ocre AQ 11 1167 74999
San Demetrio ne' Vestini AQ 12 1854 76853
Villa Sant'Angelo AQ 13 424 77277
Santo Stefano di Sessanio AQ 14 111 77388
Prata d'Ansidonia AQ 15 496 77884
Fagnano Alto AQ 16 418 78302
Lucoli AQ 16 1011 79313
Rocca di Cambio AQ 16 533 79846
Pietracamela TE 17 271 80117
Pizzoli AQ 17 4326 84443
San Pio delle Camere AQ 17 661 85104
Calascio AQ 18 137 85241
Castelvecchio Calvisio AQ 18 153 85394
Crognaleto TE 18 1297 86691
Carapelle Calvisio AQ 19 87 86778
Tornimparte AQ 19 3187 89965
Barete AQ 19 737 90702
Fano Adriano TE 19 296 90998
Scoppito AQ 19 3727 94725
Fontecchio AQ 19 369 95094
Isola del Gran Sasso d'Italia TE 19 4773 99867
Castel del Monte AQ 20 413 100280
Rocca di Mezzo AQ 20 1526 101806

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km E of L'Aquila (69753 inhabitants)
35 Km SW of Teramo (54892 inhabitants)
56 Km W of Chieti (51815 inhabitants)
56 Km W of Montesilvano (53738 inhabitants)
60 Km W of Pescara (121014 inhabitants)
72 Km E of Terni (111501 inhabitants)
74 Km NE of Tivoli (56533 inhabitants)
76 Km NE of Guidonia Montecelio (88673 inhabitants)
90 Km SE of Foligno (57155 inhabitants)
97 Km NE of Velletri (53303 inhabitants)
99 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
21:00:52
42.384 13.49 8 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 762999
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 21:00:52 ± 0.22
Latitude 42.3840 ± 0.0072
Longitude 13.4900 ± 0.0183
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 762999

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1229
Semi-minor axis of confidence ellipse (meter) 848
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 268
Circular confidence region, given by single value of horizontal uncertainty (meter) 1700.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 95
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.54
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.48204
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 762999
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:25:50
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
IV.PTQR.SHZ. 2009-04-06T21:02:05.19 10.0 undecidable manual Pg 0 0 0
.INTR.---. 2009-04-06T21:01:09.12 0.3 undecidable manual Sg 140 53.502 -0.461 67
.TERO.---. 2009-04-06T21:01:02.43 0.3 undecidable manual Sg 19 28.0497 0.102 75
.INTR.---. 2009-04-06T21:01:02.89 0.6 undecidable manual Pg 140 53.502 0.665 41
.CAMP.---. 2009-04-06T21:00:59.08 0.3 undecidable manual Sg 339 18.0708 0.007 78
.TERO.---. 2009-04-06T21:00:58.17 0.3 undecidable manual Pg 19 28.0497 0.133 75
IV.FAGN.HHN. 2009-04-06T21:00:57.95 0.3 undecidable manual Sg 150 15.1737 -0.204 76
IV.VCEL.EHN. 2009-04-06T21:00:57.57 0.3 undecidable manual Pg 88 28.749 -0.592 67
IV.FAGN.HHN. 2009-04-06T21:00:56.38 0.1 undecidable manual Pg 150 15.1737 0.752 86
.CAMP.---. 2009-04-06T21:00:55.90 0.3 undecidable manual Pg 339 18.0708 -0.26 74
MN.AQU.HHZ. 2009-04-06T21:00:55.63 0.3 undecidable manual Sg 245 7.9809 -0.497 72
MN.AQU.HHZ. 2009-04-06T21:00:54.76 0.1 undecidable manual Pg 245 7.9809 0.298 100
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