Earthquake with magnitude of ML 2.0 on date 06-04-2009 and time 21:59:32 (Italy) in region 4 km N L'Aquila (AQ)

A magnitude ML 2.0 earthquake occured in region: 4 km N L'Aquila (AQ), on

  • 06-04-2009 19:59:32 (UTC)
  • 06-04-2009 21:59:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3920, 13.4020 at 6 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 4 69753 69753
Pizzoli AQ 10 4326 74079
Barete AQ 12 737 74816
Scoppito AQ 12 3727 78543
Lucoli AQ 12 1011 79554
Fossa AQ 13 721 80275
Ocre AQ 13 1167 81442
Tornimparte AQ 14 3187 84629
Poggio Picenze AQ 14 1136 85765
Sant'Eusanio Forconese AQ 15 394 86159
Cagnano Amiterno AQ 16 1369 87528
Capitignano AQ 17 665 88193
Barisciano AQ 17 1828 90021
San Demetrio ne' Vestini AQ 17 1854 91875
Villa Sant'Angelo AQ 18 424 92299
Rocca di Cambio AQ 19 533 92832
Crognaleto TE 19 1297 94129
Campotosto AQ 19 542 94671
Pietracamela TE 19 271 94942
Montereale AQ 20 2581 97523

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km N of L'Aquila (69753 inhabitants)
39 Km SW of Teramo (54892 inhabitants)
63 Km W of Montesilvano (53738 inhabitants)
63 Km W of Chieti (51815 inhabitants)
65 Km E of Terni (111501 inhabitants)
67 Km W of Pescara (121014 inhabitants)
69 Km NE of Tivoli (56533 inhabitants)
71 Km NE of Guidonia Montecelio (88673 inhabitants)
85 Km SE of Foligno (57155 inhabitants)
94 Km NE of Velletri (53303 inhabitants)
94 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
ML 2.0 2009-04-06
19:59:32
42.392 13.402 7 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 762469
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 19:59:32 ± 0.18
Latitude 42.3920 ± 0.0063
Longitude 13.4020 ± 0.0158
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 762469

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1236
Semi-minor axis of confidence ellipse (meter) 391
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 274
Circular confidence region, given by single value of horizontal uncertainty (meter) 1476.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 147
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 14
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) 0.54049
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 762469
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:25:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.INTR.HHE. 2009-04-06T19:59:51.72 0.3 undecidable manual Sg 135 58.9965 0.272 66
IV.PTQR.SHZ. 2009-04-06T19:59:46.87 0.6 undecidable manual Sg 180 41.0256 0.235 46
IV.VVLD.HHZ. 2009-04-06T19:59:44.81 10.0 undecidable manual Pg 0 0 0
.CERT.---. 2009-04-06T19:59:43.14 0.3 undecidable manual Pg 215 59.9955 -0.336 65
IV.INTR.HHE. 2009-04-06T19:59:42.94 0.6 undecidable manual Pg 135 58.9965 -0.383 43
IV.TERO.HHZ. 2009-04-06T19:59:42.39 0.3 undecidable manual Sg 33 30.4473 -0.647 63
IV.PTQR.SHZ. 2009-04-06T19:59:40.68 0.3 undecidable manual Pg 180 41.0256 0.139 71
IV.FAGN.HHN. 2009-04-06T19:59:40.28 0.3 undecidable manual Sg 133 20.4684 0.62 65
IV.VCEL.EHE. 2009-04-06T19:59:39.41 0.1 undecidable manual Pg 89 35.9418 -0.129 95
IV.TERO.HHZ. 2009-04-06T19:59:38.05 0.3 undecidable manual Pg 33 30.4473 -0.418 68
.CAMP.---. 2009-04-06T19:59:38.86 0.3 undecidable manual Sg 2 15.9729 0.65 64
IV.FAGN.HHN. 2009-04-06T19:59:36.39 0.3 undecidable manual Pg 133 20.4684 -0.125 73
.CAMP.---. 2009-04-06T19:59:36.20 0.1 undecidable manual Pg 2 15.9729 0.526 90
MN.AQU.HHE. 2009-04-06T19:59:34.55 0.3 undecidable manual Sg 180 4.1958 -0.359 72
MN.AQU.HHE. 2009-04-06T19:59:33.62 0.1 undecidable manual Pg 180 4.1958 -0.153 100
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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