Earthquake with magnitude of ML 1.9 on date 06-04-2009 and time 20:39:29 (Italy) in region 7 km E L'Aquila (AQ)

A magnitude ML 1.9 earthquake occured in region: 7 km E L'Aquila (AQ), on

  • 06-04-2009 18:39:29 (UTC)
  • 06-04-2009 20:39:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.36, 13.48 at 9 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 7 69753 69753
Poggio Picenze AQ 7 1136 70889
Fossa AQ 8 721 71610
Ocre AQ 9 1167 72777
Sant'Eusanio Forconese AQ 9 394 73171
Barisciano AQ 10 1828 74999
San Demetrio ne' Vestini AQ 11 1854 76853
Villa Sant'Angelo AQ 12 424 77277
Lucoli AQ 14 1011 78288
Rocca di Cambio AQ 14 533 78821
Santo Stefano di Sessanio AQ 14 111 78932
Prata d'Ansidonia AQ 14 496 79428
Fagnano Alto AQ 15 418 79846
Tornimparte AQ 17 3187 83033
Pizzoli AQ 17 4326 87359
San Pio delle Camere AQ 17 661 88020
Rocca di Mezzo AQ 18 1526 89546
Scoppito AQ 18 3727 93273
Fontecchio AQ 18 369 93642
Castelvecchio Calvisio AQ 18 153 93795
Carapelle Calvisio AQ 18 87 93882
Calascio AQ 19 137 94019
Barete AQ 19 737 94756
Pietracamela TE 19 271 95027

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km E of L'Aquila (69753 inhabitants)
38 Km SW of Teramo (54892 inhabitants)
57 Km W of Chieti (51815 inhabitants)
58 Km W of Montesilvano (53738 inhabitants)
62 Km W of Pescara (121014 inhabitants)
71 Km NE of Tivoli (56533 inhabitants)
72 Km E of Terni (111501 inhabitants)
74 Km NE of Guidonia Montecelio (88673 inhabitants)
91 Km SE of Foligno (57155 inhabitants)
95 Km NE of Velletri (53303 inhabitants)
97 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
Rev 1000 ML 1.9 2009-04-06
18:39:29
42.36 13.48 9 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 761999
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 18:39:29 ± 0.09
Latitude 42.36 ± 0.00
Longitude 13.48 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 761999

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 660
Semi-minor axis of confidence ellipse (meter) 429
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 255
Circular confidence region, given by single value of horizontal uncertainty (meter) 781
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.69967
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 761999
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:24:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SDI.SHZ. 2009-04-06T18:39:54.50 1.0 undecidable manual Sg 159 0.6997 1.247 14
IV.MURB.HHZ. 2009-04-06T18:39:54.81 10.0 undecidable manual Pg 0 0 0
IV.SNTG.SHZ. 2009-04-06T18:39:51.38 10.0 undecidable manual Pg 0 0 0
IV.FDMO.HHE. 2009-04-06T18:39:49.02 10.0 undecidable manual Pg 0 0 0
IV.NRCA.SHZ. 2009-04-06T18:39:49.33 0.6 undecidable manual Sg 330 0.5396 0.809 37
IV.MNS.HHE. 2009-04-06T18:39:48.34 10.0 undecidable manual Pg 0 0 0
IV.SDI.SHZ. 2009-04-06T18:39:43.31 0.3 undecidable manual Pg 159 0.6997 0.016 67
IV.STR3.BHE. 2009-04-06T18:39:43.33 10.0 undecidable manual Pg 0 0 0
IV.PTQR.SHZ. 2009-04-06T18:39:42.87 0.3 undecidable manual Sg 189 0.3471 0.059 71
IV.GUAR.HHN. 2009-04-06T18:39:41.42 1.0 undecidable manual Pg 192 0.5828 0.125 22
IV.FIAM.HHN. 2009-04-06T18:39:41.16 0.3 undecidable manual Sg 250 0.2824 0.248 69
IV.NRCA.SHZ. 2009-04-06T18:39:40.48 0.1 undecidable manual Pg 330 0.5396 -0.087 90
IV.VCEL.EHZ. 2009-04-06T18:39:40.42 0.6 undecidable manual Sg 83 0.2698 -0.119 47
IV.TERO.HHE. 2009-04-06T18:39:39.91 0.6 undecidable manual Sg 20 0.2752 -0.77 39
IV.VVLD.HHE. 2009-04-06T18:39:39.41 0.6 undecidable manual Pg 168 0.5063 -0.586 40
IV.PTQR.SHZ. 2009-04-06T18:39:37.08 0.1 undecidable manual Pg 189 0.3471 -0.188 92
.CAMP.---. 2009-04-06T18:39:37.61 0.3 undecidable manual Sg 344 0.179 0.308 70
IV.FIAM.HHN. 2009-04-06T18:39:36.09 0.1 undecidable manual Pg 250 0.2824 -0.076 95
IV.VCEL.EHZ. 2009-04-06T18:39:36.03 0.1 undecidable manual Pg 83 0.2698 0.074 96
IV.TERO.HHE. 2009-04-06T18:39:35.85 0.1 undecidable manual Pg 20 0.2752 -0.184 94
IV.FAGN.HHZ. 2009-04-06T18:39:35.96 0.3 undecidable manual Sg 141 0.1259 0.417 69
.CAMP.---. 2009-04-06T18:39:34.41 0.3 undecidable manual Pg 344 0.179 0.32 69
IV.FAGN.HHZ. 2009-04-06T18:39:33.06 0.1 undecidable manual Pg 141 0.1259 -0.01 100
MN.AQU.HHZ. 2009-04-06T18:39:33.08 0.3 undecidable manual Sg 259 0.0567 -0.522 68
MN.AQU.HHZ. 2009-04-06T18:39:31.89 0.1 undecidable manual Pg 259 0.0567 -0.059 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.AQU.HHN. ML:0 0.0085 0.56 AML other m 2009-04-06T18:39:31.89
MN.AQU.HHE. ML:0 0.0085 0.56 AML other m 2009-04-06T18:39:31.89
IV.FAGN.HHN. ML:2.1 0.00135 0.48 AML other m 2009-04-06T18:39:33.06
IV.FAGN.HHE. ML:2.1 0.00135 0.48 AML other m 2009-04-06T18:39:33.06
IV.TERO.HHN. ML:1.9 0.00048 0.5 AML other m 2009-04-06T18:39:35.85
IV.TERO.HHE. ML:1.9 0.000315 0.62 AML other m 2009-04-06T18:39:35.85
IV.VCEL.EHN. ML:2.1 0.0006 0.56 AML other m 2009-04-06T18:39:36.03
IV.VCEL.EHE. ML:2.1 0.0006 0.56 AML other m 2009-04-06T18:39:36.03
IV.FIAM.HHN. ML:1.9 0.00036 0.5 AML other m 2009-04-06T18:39:36.09
IV.FIAM.HHE. ML:1.9 0.00044 0.42 AML other m 2009-04-06T18:39:36.09
IV.PTQR.SHZ. ML:0 6.0E-5 0.64 AML other m 2009-04-06T18:39:37.08
IV.VVLD.HHN. ML:1.9 0.000155 0.6 AML other m 2009-04-06T18:39:39.41
IV.VVLD.HHE. ML:1.9 0.000165 0.34 AML other m 2009-04-06T18:39:39.41
IV.NRCA.SHZ. ML:0 4.0E-5 0.48 AML other m 2009-04-06T18:39:40.48
IV.GUAR.HHN. ML:1.7 0.0001 0.46 AML other m 2009-04-06T18:39:41.42
IV.GUAR.HHE. ML:1.7 6.5E-5 0.48 AML other m 2009-04-06T18:39:41.42
IV.SDI.SHZ. ML:0 5.5E-5 0.4 AML other m 2009-04-06T18:39:43.31
IV.FDMO.HHN. ML:0 4.5E-5 0.38 AML other m 2009-04-06T18:39:49.02
IV.FDMO.HHE. ML:0 4.0E-5 0.38 AML other m 2009-04-06T18:39:49.02
IV.SNTG.SHZ. Md:0 13 END duration s
IV.MURB.HHN. ML:0 6.0E-5 0.36 AML other m 2009-04-06T18:39:54.81
IV.MURB.HHE. ML:0 7.0E-5 0.34 AML other m 2009-04-06T18:39:54.81
IV.STR3.BHE. Md:0 14 END duration s
IV.MURB.HHZ. Md:0 35 END duration s
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download