Earthquake with magnitude of ML 1.3 on date 30-04-2009 and time 21:40:17 (UTC) in region 5 km NW L'Aquila (AQ)

A magnitude ML 1.3 earthquake occured in region: 5 km NW L'Aquila (AQ), on

  • 30-04-2009 21:40:17 (UTC)
  • 30-04-2009 23:40:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3830, 13.3630 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 5 69753 69753
Pizzoli AQ 8 4326 74079
Scoppito AQ 9 3727 77806
Barete AQ 10 737 78543
Lucoli AQ 10 1011 79554
Tornimparte AQ 11 3187 82741
Cagnano Amiterno AQ 14 1369 84110
Ocre AQ 14 1167 85277
Fossa AQ 14 721 85998
Capitignano AQ 16 665 86663
Poggio Picenze AQ 16 1136 87799
Sant'Eusanio Forconese AQ 17 394 88193
Montereale AQ 19 2581 90774
Villa Sant'Angelo AQ 19 424 91198
San Demetrio ne' Vestini AQ 19 1854 93052
Rocca di Cambio AQ 19 533 93585
Campotosto AQ 20 542 94127
Barisciano AQ 20 1828 95955

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km NW of L'Aquila (69753 inhabitants)
42 Km SW of Teramo (54892 inhabitants)
62 Km E of Terni (111501 inhabitants)
66 Km NE of Tivoli (56533 inhabitants)
66 Km W of Montesilvano (53738 inhabitants)
66 Km W of Chieti (51815 inhabitants)
67 Km NE of Guidonia Montecelio (88673 inhabitants)
71 Km W of Pescara (121014 inhabitants)
84 Km SE of Foligno (57155 inhabitants)
91 Km NE of Roma (2864731 inhabitants)
91 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 1.8
ML 1.3
2009-04-30
21:40:17
42.383 13.363 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 843699
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-30 21:40:17 ± 0.09
Latitude 42.3830 ± 0.0045
Longitude 13.3630 ± 0.0073
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 843699

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 644
Semi-minor axis of confidence ellipse (meter) 521
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 72
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) 103
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.48653
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 843699
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 16:00:14

Md:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 843699
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 16:00:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ESLN.BHE. 2009-04-30T21:40:30.59 10.0 undecidable manual Pg 0 0 0
IV.LNSS.HHN. 2009-04-30T21:40:29.44 0.1 undecidable manual Sg 313 35.9418 0.136 93
IV.TERO.HHN. 2009-04-30T21:40:28.15 0.1 undecidable manual Sg 36 33.1446 -0.411 90
IV.NRCA.HHZ. 2009-04-30T21:40:26.85 0.1 undecidable manual Pg 338 54.0015 -0.061 92
IV.FAGN.HHE. 2009-04-30T21:40:25.91 0.1 undecidable manual Sg 125 22.2555 0.318 91
IV.FIAM.HHZ. 2009-04-30T21:40:25.75 0.6 undecidable manual Sg 238 23.754 -0.309 46
IV.CAMP.HHZ. 2009-04-30T21:40:24.13 0.1 undecidable manual Sg 13 17.4714 0.045 98
IV.LNSS.HHN. 2009-04-30T21:40:24.21 0.1 undecidable manual Pg 313 35.9418 0.079 94
IV.TERO.HHN. 2009-04-30T21:40:23.59 0.1 undecidable manual Pg 36 33.1446 -0.11 95
IV.FIAM.HHZ. 2009-04-30T21:40:22.20 0.1 undecidable manual Pg 238 23.754 -0.057 97
IV.FAGN.HHE. 2009-04-30T21:40:22.18 0.1 undecidable manual Pg 125 22.2555 0.191 94
IV.CAMP.HHZ. 2009-04-30T21:40:21.50 0.1 undecidable manual Pg 13 17.4714 0.378 93
MN.AQU.HHE. 2009-04-30T21:40:20.59 0.1 undecidable manual Sg 135 4.4955 -0.372 91
MN.AQU.HHE. 2009-04-30T21:40:19.46 0.1 undecidable manual Pg 135 4.4955 0.142 100
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