Earthquake with magnitude of ML 1.1 on date 19-02-2009 and time 17:19:56 (Italy) in region 3 km W L'Aquila (AQ)

A magnitude ML 1.1 earthquake occured in region: 3 km W L'Aquila (AQ), on

  • 19-02-2009 16:19:56 (UTC)
  • 19-02-2009 17:19:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.3500, 13.3680 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
L'Aquila AQ 3 69753 69753
Lucoli AQ 7 1011 70764
Tornimparte AQ 9 3187 73951
Scoppito AQ 9 3727 77678
Pizzoli AQ 11 4326 82004
Ocre AQ 11 1167 83171
Fossa AQ 12 721 83892
Barete AQ 13 737 84629
Sant'Eusanio Forconese AQ 15 394 85023
Poggio Picenze AQ 15 1136 86159
Rocca di Cambio AQ 16 533 86692
Villa Sant'Angelo AQ 17 424 87116
Cagnano Amiterno AQ 17 1369 88485
San Demetrio ne' Vestini AQ 17 1854 90339
Barisciano AQ 19 1828 92167
Capitignano AQ 20 665 92832

Municipalities with at least 50000 inhabitants

An earthquake occurred to
3 Km W of L'Aquila (69753 inhabitants)
44 Km SW of Teramo (54892 inhabitants)
64 Km NE of Tivoli (56533 inhabitants)
64 Km E of Terni (111501 inhabitants)
66 Km NE of Guidonia Montecelio (88673 inhabitants)
66 Km W of Chieti (51815 inhabitants)
67 Km W of Montesilvano (53738 inhabitants)
71 Km W of Pescara (121014 inhabitants)
87 Km SE of Foligno (57155 inhabitants)
88 Km NE of Velletri (53303 inhabitants)
89 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
Md 1.6
ML 1.1
2009-02-19
16:19:56
42.35 13.368 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 745299
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-02-19 16:19:56 ± 0.49
Latitude 42.3500 ± 0.0162
Longitude 13.3680 ± 0.0353
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 745299

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3272
Semi-minor axis of confidence ellipse (meter) 901
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 241
Circular confidence region, given by single value of horizontal uncertainty (meter) 3413.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 251
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.45
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.32376
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.8
Num. used stations
Type of magnitude ML
Reference to an origin 745299
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:05:39

Md:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 745299
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:05:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LPEL.HHE. 2009-02-19T16:20:12.11 10.0 undecidable manual Pg 0 0 0
IV.TERO.HHN. 2009-02-19T16:20:09.38 0.6 undecidable manual Sg 32 35.9418 0.688 41
IV.NOVE.EHZ. 2009-02-19T16:20:08.72 10.0 undecidable manual Pg 0 0 0
IV.CAMP.HHN. 2009-02-19T16:20:04.38 0.6 undecidable manual Sg 9 20.868 -0.153 49
IV.FAGN.HHN. 2009-02-19T16:20:04.15 0.3 undecidable manual Sg 118 20.0688 -0.115 74
IV.TERO.HHN. 2009-02-19T16:20:03.05 0.1 undecidable manual Pg 32 35.9418 -0.47 89
IV.SEI.SHZ. 2009-02-19T16:20:02.48 10.0 undecidable manual Pg 0 0 0
IV.FAGN.HHN. 2009-02-19T16:20:01.08 0.3 undecidable manual Pg 118 20.0688 0.114 74
IV.CAMP.HHN. 2009-02-19T16:20:01.16 0.1 undecidable manual Pg 9 20.868 0.041 100
MN.AQU.HHZ. 2009-02-19T16:20:00.05 0.3 undecidable manual Sg 81 2.7972 -0.09 77
MN.AQU.HHZ. 2009-02-19T16:19:58.82 0.1 undecidable manual Pg 81 2.7972 0.236 99
IV.CRAC.EHN. 2009-02-19T16:19:49.11 10.0 undecidable manual Pg 0 0 0
GU.SC2M.HHZ. 2009-02-19T16:19:48.36 10.0 undecidable manual Pg 0 0 0
IV.FNVD.HHZ. 2009-02-19T16:19:34.20 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