Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 07-04-2010 and time 12:43:49 (Italy) in region 7 km E Bionaz (AO)

A magnitude ML 1.9 earthquake occured in region: 7 km E Bionaz (AO), on

  • 07-04-2010 10:43:49 (UTC)
  • 07-04-2010 12:43:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.8530, 7.5110 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Bionaz AO 7 236 236
Torgnon AO 7 558 794
Antey-Saint-André AO 8 602 1396
Chamois AO 9 97 1493
Valtournenche AO 9 2277 3770
La Magdeleine AO 10 109 3879
Oyace AO 10 219 4098
Verrayes AO 10 1302 5400
Saint-Denis AO 12 378 5778
Chambave AO 12 931 6709
Fénis AO 13 1813 8522
Nus AO 13 2984 11506
Châtillon AO 14 4772 16278
Saint-Marcel AO 14 1362 17640
Pontey AO 14 817 18457
Valpelline AO 14 657 19114
Ayas AO 14 1401 20515
Quart AO 14 4039 24554
Ollomont AO 15 157 24711
Saint-Vincent AO 16 4660 29371
Brissogne AO 16 1008 30379
Doues AO 16 510 30889
Saint-Christophe AO 17 3432 34321
Roisan AO 17 1036 35357
Pollein AO 18 1569 36926
Gignod AO 19 1710 38636
Allein AO 19 229 38865
Aosta AO 20 34390 73255

Municipalities with at least 50000 inhabitants

An earthquake occurred to
88 Km N of Torino (890529 inhabitants)
96 Km N of Moncalieri (57294 inhabitants)
98 Km W of Novara (104380 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 2.3
ML 1.9 		2010-04-07
10:43:49		 45.853 7.511 10 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 1027499
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2010-04-07 10:43:49 ± 0.22
Latitude 45.8530 ± 0.0117
Longitude 7.5110 ± 0.0168
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1027499

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1632
Semi-minor axis of confidence ellipse (meter) 842
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 316
Circular confidence region, given by single value of horizontal uncertainty (meter) 1838.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 163
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) 0.52
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.72485
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:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1027499
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 19:44:21

Md:2.3

Field Value
Value 2.3
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1027499
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 19:44:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.RSP.HHZ. 2010-04-07T10:44:13.73 0.1 undecidable manual Sg 194 80.4639 -0.074 92
GU.LSD.HHE. 2010-04-07T10:44:05.30 0.1 undecidable manual Sg 214 52.503 -1.038 70
GU.RSP.HHZ. 2010-04-07T10:44:04.17 0.1 undecidable manual Pg 194 80.4639 0.583 81
GU.TRAV.HHZ. 2010-04-07T10:44:03.48 0.3 undecidable manual Sg 154 41.9247 -0.043 74
IV.MURB.HHN. 2010-04-07T10:44:02.68 10.0 undecidable manual Pg 0 0 0
CH.MMK.HHZ. 2010-04-07T10:44:02.66 0.1 undecidable manual Sg 58 41.4252 -0.728 82
GU.CIRO.HHZ. 2010-04-07T10:43:59.51 0.1 undecidable manual Sg 171 28.1496 -0.34 96
GU.SATI.HHZ. 2010-04-07T10:43:59.60 0.1 undecidable manual Sg 85 27.75 -0.14 100
GU.LSD.HHE. 2010-04-07T10:43:59.56 0.1 undecidable manual Pg 214 52.503 0.28 93
GU.TRAV.HHZ. 2010-04-07T10:43:58.13 0.1 undecidable manual Pg 154 41.9247 0.476 91
CH.MMK.HHZ. 2010-04-07T10:43:57.86 0.3 undecidable manual Pg 58 41.4252 0.284 71
IV.MRGE.HHZ. 2010-04-07T10:43:56.68 0.1 undecidable manual Pg 255 35.9418 -0.055 100
GU.SATI.HHZ. 2010-04-07T10:43:55.78 0.1 undecidable manual Pg 85 27.75 0.312 96
GU.CIRO.HHZ. 2010-04-07T10:43:55.82 0.1 undecidable manual Pg 171 28.1496 0.288 97
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