Earthquake with magnitude of ML 0.7 on date 18-05-2009 and time 17:00:08 (UTC) in region 4 km N L'Aquila (AQ)

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

  • 18-05-2009 17:00:08 (UTC)
  • 18-05-2009 19:00:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3850, 13.4060 at 5 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 11 4326 74079
Lucoli AQ 12 1011 75090
Fossa AQ 12 721 75811
Scoppito AQ 12 3727 79538
Ocre AQ 13 1167 80705
Barete AQ 13 737 81442
Poggio Picenze AQ 13 1136 82578
Tornimparte AQ 14 3187 85765
Sant'Eusanio Forconese AQ 14 394 86159
San Demetrio ne' Vestini AQ 17 1854 88013
Barisciano AQ 17 1828 89841
Villa Sant'Angelo AQ 17 424 90265
Cagnano Amiterno AQ 17 1369 91634
Capitignano AQ 17 665 92299
Rocca di Cambio AQ 18 533 92832
Crognaleto TE 19 1297 94129
Campotosto AQ 20 542 94671
Pietracamela TE 20 271 94942

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 Chieti (51815 inhabitants)
63 Km W of Montesilvano (53738 inhabitants)
65 Km E of Terni (111501 inhabitants)
67 Km W of Pescara (121014 inhabitants)
68 Km NE of Tivoli (56533 inhabitants)
70 Km NE of Guidonia Montecelio (88673 inhabitants)
86 Km SE of Foligno (57155 inhabitants)
93 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 1.4
ML 0.7
2009-05-18
17:00:08
42.385 13.406 5 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 870939
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-05-18 17:00:08 ± 0.2
Latitude 42.3850 ± 0.0045
Longitude 13.4060 ± 0.0122
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 870939

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 941
Semi-minor axis of confidence ellipse (meter) 381
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 101
Circular confidence region, given by single value of horizontal uncertainty (meter) 1118.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 184
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.15019
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 870939
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 16:32:18

Md:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 870939
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 16:32:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAMP.HHE. 2009-05-18T17:00:14.34 0.1 undecidable manual Sg 1 16.6722 0.18 95
IV.T0106.HLZ. 2009-05-18T17:00:11.96 0.1 undecidable manual Sg 192 8.88 0.297 94
IV.CAMP.HHE. 2009-05-18T17:00:11.51 0.1 undecidable manual Pg 1 16.6722 -0.093 97
IV.T0104.EHZ. 2009-05-18T17:00:10.91 0.1 undecidable manual Sg 243 6.1938 0.017 100
IV.T0106.HLZ. 2009-05-18T17:00:10.13 0.1 undecidable manual Pg 192 8.88 -0.034 99
MN.AQU.HHZ. 2009-05-18T17:00:10.18 0.1 undecidable manual Sg 185 3.4965 -0.068 99
MN.AQU.HHZ. 2009-05-18T17:00:09.19 0.1 undecidable manual Pg 185 3.4965 -0.154 98
IV.T0104.EHZ. 2009-05-18T17:00:09.60 0.1 undecidable manual Pg 243 6.1938 -0.117 98
IV.PE9.EHZ. 2009-05-18T17:00:00.31 10.0 undecidable manual Pg 0 0 0
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