Earthquake with magnitude of ML 0.7 on date 30-04-2009 and time 18:05:32 (Italy) in region 4 km NE L'Aquila (AQ)

A magnitude ML 0.7 earthquake occured in region: 4 km NE L'Aquila (AQ), on

  • 30-04-2009 16:05:32 (UTC)
  • 30-04-2009 18:05:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3850, 13.4190 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 4 69753 69753
Pizzoli AQ 12 4326 74079
Fossa AQ 12 721 74800
Ocre AQ 12 1167 75967
Lucoli AQ 12 1011 76978
Poggio Picenze AQ 12 1136 78114
Scoppito AQ 13 3727 81841
Barete AQ 14 737 82578
Sant'Eusanio Forconese AQ 14 394 82972
Tornimparte AQ 14 3187 86159
Barisciano AQ 16 1828 87987
San Demetrio ne' Vestini AQ 16 1854 89841
Villa Sant'Angelo AQ 16 424 90265
Rocca di Cambio AQ 17 533 90798
Capitignano AQ 18 665 91463
Cagnano Amiterno AQ 18 1369 92832
Crognaleto TE 19 1297 94129
Pietracamela TE 19 271 94400
Santo Stefano di Sessanio AQ 19 111 94511
Prata d'Ansidonia AQ 19 496 95007
Fagnano Alto AQ 19 418 95425
Campotosto AQ 20 542 95967

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km NE of L'Aquila (69753 inhabitants)
39 Km SW of Teramo (54892 inhabitants)
62 Km W of Chieti (51815 inhabitants)
62 Km W of Montesilvano (53738 inhabitants)
66 Km W of Pescara (121014 inhabitants)
66 Km E of Terni (111501 inhabitants)
69 Km NE of Tivoli (56533 inhabitants)
71 Km NE of Guidonia Montecelio (88673 inhabitants)
86 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
Md 1.6
ML 0.7
2009-04-30
16:05:32
42.385 13.419 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 843269
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-30 16:05:32 ± 0.06
Latitude 42.3850 ± 0.0027
Longitude 13.4190 ± 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 843269

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 521
Semi-minor axis of confidence ellipse (meter) 333
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 271
Circular confidence region, given by single value of horizontal uncertainty (meter) 583.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 172
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.03327
Epicentral distance of station farthest from the epicenter (degree) 0.50092
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.5
Num. used stations
Type of magnitude ML
Reference to an origin 843269
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 15:59:44

Md:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 843269
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 15:59:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.SHZ. 2009-04-30T16:05:50.57 0.1 undecidable manual Sg 334 55.5999 0.059 92
IV.TERO.HHE. 2009-04-30T16:05:43.75 0.1 undecidable manual Sg 30 30.4473 -0.026 97
IV.NRCA.SHZ. 2009-04-30T16:05:42.97 0.1 undecidable manual Pg 334 55.5999 -0.12 91
IV.CAMP.HHZ. 2009-04-30T16:05:39.67 0.1 undecidable manual Sg 357 16.7721 -0.039 99
IV.TERO.HHE. 2009-04-30T16:05:39.22 0.1 undecidable manual Pg 30 30.4473 0.019 97
IV.CAMP.HHZ. 2009-04-30T16:05:36.95 0.1 undecidable manual Pg 357 16.7721 0.096 98
MN.AQU.HHZ. 2009-04-30T16:05:36.55 0.1 undecidable manual Sg 202 3.6963 -0.083 100
MN.AQU.HHZ. 2009-04-30T16:05:35.18 0.1 undecidable manual Pg 202 3.6963 0.103 100
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