Earthquake with magnitude of ML 0.4 on date 09-04-2010 and time 02:57:09 (Italy) in region 4 km E L'Aquila (AQ)

A magnitude ML 0.4 earthquake occured in region: 4 km E L'Aquila (AQ), on

  • 09-04-2010 00:57:09 (UTC)
  • 09-04-2010 02:57:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3590, 13.4410 at 4 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
Fossa AQ 8 721 70474
Ocre AQ 9 1167 71641
Poggio Picenze AQ 9 1136 72777
Sant'Eusanio Forconese AQ 10 394 73171
Lucoli AQ 11 1011 74182
San Demetrio ne' Vestini AQ 13 1854 76036
Villa Sant'Angelo AQ 13 424 76460
Barisciano AQ 13 1828 78288
Tornimparte AQ 14 3187 81475
Rocca di Cambio AQ 14 533 82008
Pizzoli AQ 15 4326 86334
Scoppito AQ 15 3727 90061
Fagnano Alto AQ 16 418 90479
Prata d'Ansidonia AQ 16 496 90975
Barete AQ 17 737 91712
Santo Stefano di Sessanio AQ 17 111 91823
Rocca di Mezzo AQ 18 1526 93349
San Pio delle Camere AQ 19 661 94010
Fontecchio AQ 20 369 94379

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km E of L'Aquila (69753 inhabitants)
40 Km SW of Teramo (54892 inhabitants)
60 Km W of Chieti (51815 inhabitants)
61 Km W of Montesilvano (53738 inhabitants)
65 Km W of Pescara (121014 inhabitants)
69 Km NE of Tivoli (56533 inhabitants)
69 Km E of Terni (111501 inhabitants)
71 Km NE of Guidonia Montecelio (88673 inhabitants)
90 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 0.4
2010-04-09
00:57:09
42.359 13.441 4 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1028389
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2010-04-09 00:57:09 ± 0.24
Latitude 42.3590 ± 0.0081
Longitude 13.4410 ± 0.0073
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1028389

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 797
Semi-minor axis of confidence ellipse (meter) 595
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 198
Circular confidence region, given by single value of horizontal uncertainty (meter) 1081.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 231
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.14119
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 1028389
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 19:45:27

Md:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1028389
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 19:45:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FAGN.HHN. 2010-04-09T00:57:15.29 0.6 undecidable manual Sg 131 15.6732 -0.103 49
IV.FAGN.HHN. 2010-04-09T00:57:13.16 0.3 undecidable manual Pg 131 15.6732 0.12 73
IV.T0106.EHE. 2010-04-09T00:57:12.65 0.3 undecidable manual Sg 219 7.3815 -0.029 75
IV.T0106.EHE. 2010-04-09T00:57:11.51 0.1 undecidable manual Pg 219 7.3815 0.037 100
MN.AQU.HHZ. 2010-04-09T00:57:11.56 0.1 undecidable manual Sg 260 3.1968 0.072 100
MN.AQU.HHZ. 2010-04-09T00:57:10.66 0.1 undecidable manual Pg 260 3.1968 -0.126 99
IV.STR4.BHN. 2010-04-09T00:56:51.24 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