Earthquake with magnitude of ML 1.6 on date 23-04-2009 and time 06:50:42 (Italy) in region 4 km E Lucoli (AQ)

A magnitude ML 1.6 earthquake occured in region: 4 km E Lucoli (AQ), on

  • 23-04-2009 04:50:42 (UTC)
  • 23-04-2009 06:50:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3030, 13.3870 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
Lucoli AQ 4 1011 1011
L'Aquila AQ 6 69753 70764
Tornimparte AQ 7 3187 73951
Ocre AQ 7 1167 75118
Fossa AQ 8 721 75839
Rocca di Cambio AQ 11 533 76372
Sant'Eusanio Forconese AQ 12 394 76766
Villa Sant'Angelo AQ 13 424 77190
Poggio Picenze AQ 13 1136 78326
Scoppito AQ 13 3727 82053
San Demetrio ne' Vestini AQ 14 1854 83907
Rocca di Mezzo AQ 15 1526 85433
Fagnano Alto AQ 16 418 85851
Pizzoli AQ 17 4326 90177
Barisciano AQ 17 1828 92005
Borgorose RI 18 4591 96596
Prata d'Ansidonia AQ 18 496 97092
Barete AQ 19 737 97829
Fontecchio AQ 20 369 98198

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km S of L'Aquila (69753 inhabitants)
48 Km SW of Teramo (54892 inhabitants)
61 Km NE of Tivoli (56533 inhabitants)
64 Km NE of Guidonia Montecelio (88673 inhabitants)
65 Km W of Chieti (51815 inhabitants)
67 Km W of Montesilvano (53738 inhabitants)
67 Km E of Terni (111501 inhabitants)
70 Km W of Pescara (121014 inhabitants)
85 Km NE of Velletri (53303 inhabitants)
87 Km NE of Roma (2864731 inhabitants)
92 Km SE of Foligno (57155 inhabitants)
100 Km NE of Aprilia (73446 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
Md 2.0
ML 1.6
2009-04-23
04:50:42
42.303 13.387 11 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 829799
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-23 04:50:42 ± 0.12
Latitude 42.3030 ± 0.0063
Longitude 13.3870 ± 0.0097
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 829799

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 799
Semi-minor axis of confidence ellipse (meter) 644
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 70
Circular confidence region, given by single value of horizontal uncertainty (meter) 1063.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 82
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.48
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.67089
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 829799
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 15:43:58

Md:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 829799
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 15:43:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ESLN.BHN. 2009-04-23T04:52:08.00 10.0 undecidable manual Sg 0 0 0
IV.LPEL.HHE. 2009-04-23T04:51:04.63 10.0 undecidable manual Sg 0 0 0
IV.NRCA.HHN. 2009-04-23T04:51:01.85 0.3 undecidable manual Sg 339 62.9925 0.36 64
IV.MNS.HHZ. 2009-04-23T04:51:00.67 10.0 undecidable manual Pg 0 0 0
IV.LNSS.HHZ. 2009-04-23T04:50:56.91 0.3 undecidable manual Sg 320 43.7229 0.551 63
IV.VCEL.EHE. 2009-04-23T04:50:55.71 0.3 undecidable manual Sg 75 38.5281 0.733 59
IV.TERO.HHZ. 2009-04-23T04:50:55.20 0.6 undecidable manual Sg 26 39.7269 -0.084 47
IV.SDI.SHZ. 2009-04-23T04:50:54.67 0.6 undecidable manual Pg 152 74.4699 -0.391 41
IV.NRCA.HHN. 2009-04-23T04:50:53.35 0.1 undecidable manual Pg 339 62.9925 0.057 90
IV.PTQR.SHZ. 2009-04-23T04:50:52.97 0.1 undecidable manual Sg 178 31.1466 -0.024 96
IV.LPEL.HHE. 2009-04-23T04:50:52.99 10.0 undecidable manual Pg 0 0 0
IV.VVLD.HHE. 2009-04-23T04:50:51.23 0.3 undecidable manual Pg 158 51.8037 -0.342 65
IV.LNSS.HHZ. 2009-04-23T04:50:50.69 0.3 undecidable manual Pg 320 43.7229 0.36 66
IV.CAMP.HHZ. 2009-04-23T04:50:50.74 0.3 undecidable manual Sg 4 25.9518 -0.864 57
IV.FIAM.HHN. 2009-04-23T04:50:50.67 0.3 undecidable manual Sg 260 22.4553 -0.005 74
IV.VCEL.EHE. 2009-04-23T04:50:50.17 0.3 undecidable manual Pg 75 38.5281 0.637 61
IV.ESLN.BHN. 2009-04-23T04:50:49.02 10.0 undecidable manual Pg 0 0 0
IV.PTQR.SHZ. 2009-04-23T04:50:48.25 0.6 undecidable manual Pg 178 31.1466 -0.138 47
IV.FAGN.HHN. 2009-04-23T04:50:48.93 0.1 undecidable manual Sg 104 16.6722 -0.001 99
IV.TERO.HHZ. 2009-04-23T04:50:48.80 0.3 undecidable manual Pg 26 39.7269 -0.908 54
IV.CAMP.HHZ. 2009-04-23T04:50:47.11 0.1 undecidable manual Pg 4 25.9518 -0.475 88
IV.FIAM.HHN. 2009-04-23T04:50:47.12 0.3 undecidable manual Pg 260 22.4553 0.071 73
MN.AQU.HHZ. 2009-04-23T04:50:46.21 0.1 undecidable manual Sg 12 5.7942 -0.049 100
IV.FAGN.HHN. 2009-04-23T04:50:46.19 0.1 undecidable manual Pg 104 16.6722 0.148 96
MN.VSL.HHN. 2009-04-23T04:50:46.59 10.0 undecidable manual Pg 0 0 0
MN.AQU.HHZ. 2009-04-23T04:50:44.60 0.1 undecidable manual Pg 12 5.7942 0.101 99
IV.STR3.BHN. 2009-04-23T04:50:28.02 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