Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 15-04-2009 and time 13:53:11 (UTC) in region 5 km W L'Aquila (AQ)

A magnitude ML 2.0 earthquake occured in region: 5 km W L'Aquila (AQ), on

  • 15-04-2009 13:53:11 (UTC)
  • 15-04-2009 15:53:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3720, 13.3460 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.

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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
Scoppito AQ 7 3727 73480
Pizzoli AQ 8 4326 77806
Lucoli AQ 9 1011 78817
Tornimparte AQ 10 3187 82004
Barete AQ 10 737 82741
Cagnano Amiterno AQ 14 1369 84110
Ocre AQ 14 1167 85277
Fossa AQ 15 721 85998
Capitignano AQ 17 665 86663
Poggio Picenze AQ 17 1136 87799
Sant'Eusanio Forconese AQ 17 394 88193
Montereale AQ 19 2581 90774
Rocca di Cambio AQ 19 533 91307
Villa Sant'Angelo AQ 19 424 91731
San Demetrio ne' Vestini AQ 20 1854 93585

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km W of L'Aquila (69753 inhabitants)
44 Km SW of Teramo (54892 inhabitants)
61 Km E of Terni (111501 inhabitants)
64 Km NE of Tivoli (56533 inhabitants)
66 Km NE of Guidonia Montecelio (88673 inhabitants)
68 Km W of Chieti (51815 inhabitants)
68 Km W of Montesilvano (53738 inhabitants)
72 Km W of Pescara (121014 inhabitants)
84 Km SE of Foligno (57155 inhabitants)
89 Km NE of Roma (2864731 inhabitants)
89 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 2.1
ML 2.0 		2009-04-15
13:53:11		 42.372 13.346 10 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 807399
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-15 13:53:11 ± 0.09
Latitude 42.3720 ± 0.0045
Longitude 13.3460 ± 0.0073
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 807399

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 617
Semi-minor axis of confidence ellipse (meter) 510
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 81
Circular confidence region, given by single value of horizontal uncertainty (meter) 781.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 49
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 29
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) 0.74644
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 807399
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 15:17:50

Md:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 807399
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 15:17:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2009-04-15T13:53:40.95 10.0 undecidable manual Sg 0 0 0
IV.ARVD.HHZ. 2009-04-15T13:53:38.31 10.0 undecidable manual Pg 0 0 0
IV.LPEL.HHN. 2009-04-15T13:53:35.36 0.3 undecidable manual Sg 117 77.6667 0.653 58
IV.CING.HHZ. 2009-04-15T13:53:35.41 10.0 undecidable manual Pg 0 0 0
IV.OFFI.HHZ. 2009-04-15T13:53:35.22 10.0 undecidable manual Pg 0 0 0
IV.SNTG.SHZ. 2009-04-15T13:53:33.81 10.0 undecidable manual Pg 0 0 0
IV.CESX.HHN. 2009-04-15T13:53:33.18 10.0 undecidable manual Sg 0 0 0
IV.ASSB.HHZ. 2009-04-15T13:53:31.34 10.0 undecidable manual Pg 0 0 0
IV.INTR.HHZ. 2009-04-15T13:53:31.02 0.3 undecidable manual Sg 131 60.8946 0.796 56
IV.GUAR.HHN. 2009-04-15T13:53:31.87 10.0 undecidable manual Sg 0 0 0
IV.FDMO.HHZ. 2009-04-15T13:53:30.18 10.0 undecidable manual Pg 0 0 0
IV.CERT.HHZ. 2009-04-15T13:53:28.42 0.3 undecidable manual Sg 213 55.6998 -0.406 65
IV.CESX.HHN. 2009-04-15T13:53:28.18 10.0 undecidable manual Pg 0 0 0
IV.GUAR.HHN. 2009-04-15T13:53:27.19 10.0 undecidable manual Pg 0 0 0
IV.SOR.HHZ. 2009-04-15T13:53:25.25 10.0 undecidable manual Pg 0 0 0
IV.CESI.HHE. 2009-04-15T13:53:25.71 0.6 undecidable manual Pg 333 78.8655 0.725 37
IV.SDI.SHZ. 2009-04-15T13:53:25.37 0.6 undecidable manual Pg 152 82.8504 -0.221 43
IV.LNSS.HHZ. 2009-04-15T13:53:24.49 0.3 undecidable manual Sg 316 35.8419 0.965 54
IV.LPEL.HHN. 2009-04-15T13:53:24.55 0.3 undecidable manual Pg 117 77.6667 -0.249 64
IV.VCEL.EHZ. 2009-04-15T13:53:24.99 0.3 undecidable manual Sg 86 40.626 0.177 70
IV.VVLD.HHZ. 2009-04-15T13:53:23.02 0.3 undecidable manual Pg 158 60.1953 0.912 53
IV.PTQR.SHZ. 2009-04-15T13:53:23.81 0.3 undecidable manual Sg 173 39.1275 -0.597 63
IV.TERO.HHZ. 2009-04-15T13:53:22.40 0.3 undecidable manual Sg 37 34.9428 -0.894 56
IV.NRCA.SHZ. 2009-04-15T13:53:21.52 0.1 undecidable manual Pg 340 54.6009 0.28 89
IV.CERT.HHZ. 2009-04-15T13:53:21.13 0.3 undecidable manual Pg 213 55.6998 -0.277 67
IV.MNS.HHZ. 2009-04-15T13:53:21.17 0.6 undecidable manual Pg 272 54.501 -0.055 47
IV.INTR.HHZ. 2009-04-15T13:53:21.95 0.6 undecidable manual Pg 131 60.8946 -0.262 44
IV.VCEL.EHZ. 2009-04-15T13:53:19.07 0.6 undecidable manual Pg 86 40.626 -0.016 48
IV.FAGN.HHZ. 2009-04-15T13:53:19.71 0.3 undecidable manual Sg 121 22.755 -0.187 72
IV.FIAM.HHZ. 2009-04-15T13:53:19.41 0.3 undecidable manual Sg 238 22.0668 -0.242 71
IV.CAMP.HHZ. 2009-04-15T13:53:18.45 0.1 undecidable manual Sg 16 18.87 -0.227 96
IV.LNSS.HHZ. 2009-04-15T13:53:18.23 0.1 undecidable manual Pg 316 35.8419 -0.113 96
IV.PTQR.SHZ. 2009-04-15T13:53:18.56 0.3 undecidable manual Pg 173 39.1275 -0.294 69
IV.TERO.HHZ. 2009-04-15T13:53:17.66 0.1 undecidable manual Pg 37 34.9428 -0.549 86
IV.FIAM.HHZ. 2009-04-15T13:53:16.18 0.1 undecidable manual Pg 238 22.0668 0.072 99
IV.FAGN.HHZ. 2009-04-15T13:53:16.14 0.3 undecidable manual Pg 121 22.755 -0.109 73
IV.T0106.HLN. 2009-04-15T13:53:15.84 0.1 undecidable manual Sg 157 7.881 0.172 99
IV.CAMP.HHZ. 2009-04-15T13:53:15.65 0.1 undecidable manual Pg 16 18.87 0.104 99
MN.AQU.HHZ. 2009-04-15T13:53:15.09 0.3 undecidable manual Sg 114 4.995 -0.045 77
IV.T0106.HLN. 2009-04-15T13:53:14.09 0.3 undecidable manual Pg 157 7.881 0.283 73
MN.AQU.HHZ. 2009-04-15T13:53:13.65 0.1 undecidable manual Pg 114 4.995 0.149 100
IV.RDP.BHZ. 2009-04-15T13:53:03.74 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