Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 30-04-2009 and time 19:13:41 (Italy) in region 3 km W L'Aquila (AQ)

A magnitude ML 2.0 earthquake occured in region: 3 km W L'Aquila (AQ), on

  • 30-04-2009 17:13:41 (UTC)
  • 30-04-2009 19:13:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3570, 13.3610 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 3 69753 69753
Lucoli AQ 8 1011 70764
Scoppito AQ 9 3727 74491
Tornimparte AQ 9 3187 77678
Pizzoli AQ 10 4326 82004
Ocre AQ 12 1167 83171
Barete AQ 12 737 83908
Fossa AQ 13 721 84629
Sant'Eusanio Forconese AQ 15 394 85023
Poggio Picenze AQ 16 1136 86159
Cagnano Amiterno AQ 16 1369 87528
Rocca di Cambio AQ 17 533 88061
Villa Sant'Angelo AQ 17 424 88485
San Demetrio ne' Vestini AQ 18 1854 90339
Capitignano AQ 19 665 91004
Barisciano AQ 19 1828 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)
63 Km E of Terni (111501 inhabitants)
64 Km NE of Tivoli (56533 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)
86 Km SE of Foligno (57155 inhabitants)
89 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 2.3
ML 2.0 		2009-04-30
17:13:41		 42.357 13.361 10 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 843409
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-30 17:13:41 ± 0.06
Latitude 42.3570 ± 0.0036
Longitude 13.3610 ± 0.0061
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 843409

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 435
Semi-minor axis of confidence ellipse (meter) 388
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 63
Circular confidence region, given by single value of horizontal uncertainty (meter) 640.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 50
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.85705
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 843409
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 15:59:54

Md:2.3

Field Value
Value 2.3
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 843409
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 15:59:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BRSN.SHZ. 2009-04-30T17:14:23.52 10.0 undecidable manual Pg 0 0 0
IV.CING.HHN. 2009-04-30T17:14:17.63 10.0 undecidable manual Pg 0 0 0
IV.MURB.HHN. 2009-04-30T17:14:10.26 10.0 undecidable manual Pg 0 0 0
IV.OFFI.HHE. 2009-04-30T17:14:06.40 10.0 undecidable manual Pg 0 0 0
IV.GUMA.HHE. 2009-04-30T17:14:05.76 10.0 undecidable manual Pg 0 0 0
IV.SNTG.SHZ. 2009-04-30T17:14:04.98 10.0 undecidable manual Pg 0 0 0
IV.INTR.HHZ. 2009-04-30T17:14:00.79 0.1 undecidable manual Sg 130 58.8966 0.366 86
IV.GIUL.HHE. 2009-04-30T17:14:00.67 10.0 undecidable manual Pg 0 0 0
IV.CERT.HHN. 2009-04-30T17:13:59.14 0.6 undecidable manual Sg 215 55.0005 -0.242 44
IV.ASSB.HHZ. 2009-04-30T17:13:58.33 0.3 undecidable manual Pg 323 95.1381 0.146 63
IV.SDI.SHZ. 2009-04-30T17:13:57.63 10.0 undecidable manual Pg 0 0 0
IV.CESX.HHZ. 2009-04-30T17:13:57.22 10.0 undecidable manual Pg 0 0 0
IV.CESI.HHZ. 2009-04-30T17:13:56.10 0.3 undecidable manual Pg 333 80.8635 0.118 65
IV.FDMO.HHE. 2009-04-30T17:13:55.46 0.3 undecidable manual Pg 344 78.5658 -0.164 65
IV.LNSS.HHZ. 2009-04-30T17:13:55.49 0.3 undecidable manual Sg 316 37.8288 0.69 60
IV.GUAR.HHZ. 2009-04-30T17:13:54.00 0.6 undecidable manual Pg 184 62.5929 0.843 36
IV.PTQR.SHZ. 2009-04-30T17:13:54.40 0.1 undecidable manual Sg 175 37.3293 -0.275 91
IV.LPEL.HHE. 2009-04-30T17:13:54.89 0.6 undecidable manual Pg 117 75.8685 -0.312 42
IV.VVLD.HHZ. 2009-04-30T17:13:53.07 0.6 undecidable manual Pg 158 58.1973 0.579 40
IV.INTR.HHZ. 2009-04-30T17:13:52.53 0.1 undecidable manual Pg 130 58.8966 -0.06 91
IV.NRCA.SHZ. 2009-04-30T17:13:52.20 0.1 undecidable manual Pg 339 56.499 -0.029 92
IV.MNS.HHE. 2009-04-30T17:13:51.84 0.3 undecidable manual Pg 273 55.7997 -0.277 66
IV.CERT.HHN. 2009-04-30T17:13:51.70 0.1 undecidable manual Pg 215 55.0005 -0.291 88
IV.FIAM.HHZ. 2009-04-30T17:13:50.23 0.1 undecidable manual Sg 244 22.3554 -0.074 97
IV.CAMP.HHZ. 2009-04-30T17:13:49.49 0.1 undecidable manual Sg 11 20.1687 -0.139 96
IV.LNSS.HHZ. 2009-04-30T17:13:49.39 0.3 undecidable manual Pg 316 37.8288 0.047 71
.FAGN.HHE. 2009-04-30T17:13:49.98 0.6 undecidable manual Sg 119 20.868 0.124 48
IV.VCEL.EHZ. 2009-04-30T17:13:49.70 0.1 undecidable manual Pg 84 39.5271 0.094 94
IV.PTQR.SHZ. 2009-04-30T17:13:49.08 0.1 undecidable manual Pg 175 37.3293 -0.193 92
IV.TERO.HHZ. 2009-04-30T17:13:48.41 0.1 undecidable manual Pg 34 35.5422 -0.58 84
IV.CAMP.HHZ. 2009-04-30T17:13:46.38 0.1 undecidable manual Pg 11 20.1687 0.022 99
.FAGN.HHE. 2009-04-30T17:13:46.51 0.1 undecidable manual Pg 119 20.868 0.022 98
IV.FIAM.HHZ. 2009-04-30T17:13:46.93 0.1 undecidable manual Pg 244 22.3554 0.181 95
MN.AQU.HHZ. 2009-04-30T17:13:45.29 0.1 undecidable manual Sg 96 3.3966 -0.091 100
MN.AQU.HHZ. 2009-04-30T17:13:44.13 0.1 undecidable manual Pg 96 3.3966 0.223 97
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
Waveforms Seismic signals in miniseed + resp format Download