Earthquake with magnitude of ML 1.2 on date 14-04-2009 and time 15:42:57 (Italy) in region 5 km NW L'Aquila (AQ)

A magnitude ML 1.2 earthquake occured in region: 5 km NW L'Aquila (AQ), on

  • 14-04-2009 13:42:57 (UTC)
  • 14-04-2009 15:42:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3930, 13.3660 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 5 69753 69753
Pizzoli AQ 8 4326 74079
Scoppito AQ 9 3727 77806
Barete AQ 10 737 78543
Lucoli AQ 12 1011 79554
Tornimparte AQ 12 3187 82741
Cagnano Amiterno AQ 14 1369 84110
Fossa AQ 15 721 84831
Ocre AQ 15 1167 85998
Capitignano AQ 15 665 86663
Poggio Picenze AQ 17 1136 87799
Sant'Eusanio Forconese AQ 17 394 88193
Montereale AQ 18 2581 90774
Campotosto AQ 18 542 91316
Villa Sant'Angelo AQ 20 424 91740
Crognaleto TE 20 1297 93037
San Demetrio ne' Vestini AQ 20 1854 94891
Barisciano AQ 20 1828 96719

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km NW of L'Aquila (69753 inhabitants)
41 Km SW of Teramo (54892 inhabitants)
62 Km E of Terni (111501 inhabitants)
66 Km W of Montesilvano (53738 inhabitants)
66 Km W of Chieti (51815 inhabitants)
67 Km NE of Tivoli (56533 inhabitants)
68 Km NE of Guidonia Montecelio (88673 inhabitants)
70 Km W of Pescara (121014 inhabitants)
83 Km SE of Foligno (57155 inhabitants)
91 Km NE of Roma (2864731 inhabitants)
92 Km NE of Velletri (53303 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 1.2
2009-04-14
13:42:57
42.393 13.366 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 802899
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-14 13:42:57 ± 0.09
Latitude 42.3930 ± 0.0045
Longitude 13.3660 ± 0.0085
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 802899

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 650
Semi-minor axis of confidence ellipse (meter) 476
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 90
Circular confidence region, given by single value of horizontal uncertainty (meter) 860.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47754
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 802899
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 15:12:36

Md:1.6

Field Value
Value 1.6
Uncertainty 0.5
Num. used stations
Type of magnitude Md
Reference to an origin 802899
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 15:12:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PRMA.HHN. 2009-04-14T13:43:54.04 10.0 undecidable manual Pg 0 0 0
IV.LPEL.HHN. 2009-04-14T13:43:44.86 10.0 undecidable manual Pg 0 0 0
CH.MUGIO.HHE. 2009-04-14T13:43:33.88 10.0 undecidable manual Pg 0 0 0
IV.NRCA.HHE. 2009-04-14T13:43:14.20 0.1 undecidable manual Sg 337 53.0025 0.181 100
IV.NRCA.HHE. 2009-04-14T13:43:07.03 0.3 undecidable manual Pg 337 53.0025 0.106 77
IV.TERO.HHE. 2009-04-14T13:43:07.98 0.3 undecidable manual Sg 37 32.0457 -0.446 76
IV.FIAM.HHN. 2009-04-14T13:43:06.19 0.3 undecidable manual Sg 236 24.6531 -0.28 79
IV.FAGN.HHE. 2009-04-14T13:43:06.09 0.3 undecidable manual Sg 128 22.755 0.185 79
IV.CAMP.HHZ. 2009-04-14T13:43:03.83 0.3 undecidable manual Sg 13 16.1727 -0.05 82
IV.TERO.HHE. 2009-04-14T13:43:03.50 0.6 undecidable manual Pg 37 32.0457 -0.196 53
IV.FAGN.HHE. 2009-04-14T13:43:02.57 0.3 undecidable manual Pg 128 22.755 0.33 77
IV.FIAM.HHN. 2009-04-14T13:43:02.59 0.3 undecidable manual Pg 236 24.6531 0.022 82
IV.CAMP.HHZ. 2009-04-14T13:43:01.29 0.3 undecidable manual Pg 13 16.1727 0.219 81
MN.AQU.HHZ. 2009-04-14T13:43:00.97 0.3 undecidable manual Sg 146 5.2947 -0.263 79
MN.AQU.HHZ. 2009-04-14T13:42:59.68 0.3 undecidable manual Pg 146 5.2947 0.137 84
IV.CRAC.EHZ. 2009-04-14T13:42:43.97 10.0 undecidable manual Pg 0 0 0
MN.TIP.HHE. 2009-04-14T13:42:31.42 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