Earthquake with magnitude of ML 1.6 on date 26-02-2009 and time 00:40:00 (Italy) in region 1 km N Lucoli (AQ)

A magnitude ML 1.6 earthquake occured in region: 1 km N Lucoli (AQ), on

  • 25-02-2009 23:40:00 (UTC)
  • 26-02-2009 00:40:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.3050, 13.3430 at 6 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 2 1011 1011
Tornimparte AQ 4 3187 4198
L'Aquila AQ 7 69753 73951
Scoppito AQ 10 3727 77678
Ocre AQ 11 1167 78845
Fossa AQ 12 721 79566
Rocca di Cambio AQ 14 533 80099
Sant'Eusanio Forconese AQ 15 394 80493
Pizzoli AQ 15 4326 84819
Borgorose RI 15 4591 89410
Villa Sant'Angelo AQ 17 424 89834
Poggio Picenze AQ 17 1136 90970
Barete AQ 17 737 91707
San Demetrio ne' Vestini AQ 18 1854 93561
Rocca di Mezzo AQ 18 1526 95087
Fiamignano RI 18 1413 96500
Pescorocchiano RI 19 2075 98575
Cagnano Amiterno AQ 20 1369 99944
Fagnano Alto AQ 20 418 100362

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km SW of L'Aquila (69753 inhabitants)
49 Km SW of Teramo (54892 inhabitants)
59 Km NE of Tivoli (56533 inhabitants)
61 Km NE of Guidonia Montecelio (88673 inhabitants)
64 Km E of Terni (111501 inhabitants)
68 Km W of Chieti (51815 inhabitants)
70 Km W of Montesilvano (53738 inhabitants)
74 Km W of Pescara (121014 inhabitants)
83 Km NE of Velletri (53303 inhabitants)
84 Km NE of Roma (2864731 inhabitants)
89 Km SE of Foligno (57155 inhabitants)
98 Km NE of Aprilia (73446 inhabitants)
99 Km NE of Pomezia (62966 inhabitants)
100 Km NE of Latina (125985 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 1.8
ML 1.6
2009-02-25
23:40:00
42.305 13.343 7 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 746539
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-02-25 23:40:00 ± 0.27
Latitude 42.3050 ± 0.0063
Longitude 13.3430 ± 0.0109
Depth (km) 7 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 746539

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 901
Semi-minor axis of confidence ellipse (meter) 618
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 99
Circular confidence region, given by single value of horizontal uncertainty (meter) 1140.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 231
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.28598
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 746539
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:07:02

Md:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 746539
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:07:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTQR.SHZ. 2009-02-25T23:40:12.14 0.6 undecidable manual Sg 171 31.746 0.105 48
IV.FAGN.HHZ. 2009-02-25T23:40:08.21 0.6 undecidable manual Sg 102 20.2686 0.033 50
IV.PTQR.SHZ. 2009-02-25T23:40:07.09 0.6 undecidable manual Pg 171 31.746 -0.189 47
IV.FAGN.HHZ. 2009-02-25T23:40:05.02 0.1 undecidable manual Pg 102 20.2686 -0.032 100
MN.AQU.HHN. 2009-02-25T23:40:04.09 0.3 undecidable manual Sg 42 7.2927 -0.092 75
MN.AQU.HHN. 2009-02-25T23:40:02.87 0.1 undecidable manual Pg 42 7.2927 0.117 100
IV.OC9.EHE. 2009-02-25T23:39:56.90 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