Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 18-08-2024 and time 13:45:56 (Italy) in region 6 km NE Bionaz (AO)

A magnitude ML 2.0 earthquake occured in region: 6 km NE Bionaz (AO), on

  • 18-08-2024 11:45:56 (UTC)
  • 18-08-2024 13:45:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.9260, 7.4540 at 7 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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 6 236 236
Oyace AO 10 219 455
Ollomont AO 14 157 612
Valtournenche AO 14 2277 2889
Valpelline AO 15 657 3546
Chamois AO 16 97 3643
Doues AO 16 510 4153
Torgnon AO 17 558 4711
Antey-Saint-André AO 17 602 5313
La Magdeleine AO 18 109 5422
Allein AO 19 229 5651
Roisan AO 19 1036 6687
Verrayes AO 19 1302 7989

Municipalities with at least 50000 inhabitants

An earthquake occurred to
96 Km N of Torino (890529 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
Reviewed
Rev100 		ML 2.0 2024-08-18
11:45:56		 45.9263 7.4543 7 2024-08-18
11:54:41		 Sala Sismica INGV-Roma 130793031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-08-18 11:45:56 ± 0.14
Latitude 45.9263 ± 0.0072
Longitude 7.4543 ± 0.0116
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 130793031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 878
Semi-minor axis of confidence ellipse (meter) 600
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 262
Circular confidence region, given by single value of horizontal uncertainty (meter) 880.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 112
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.15738
Epicentral distance of station farthest from the epicenter (degree) 0.78871
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 130793031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-08-18 11:54:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.RSP.HHZ. 2024-08-18T11:46:23.60 0.6 undecidable manual S 190 87.5457 50 0.37 44
GU.LSD.HHZ. 2024-08-18T11:46:14.24 0.6 undecidable manual S 206 57.3981 50 -0.95 37
IV.ORO.EHZ. 2024-08-18T11:46:13.34 0.6 undecidable manual S 129 52.6029 50 -0.56 44
GU.RSP.HHZ. 2024-08-18T11:46:12.58 0.6 positive manual P 190 87.5457 50 0.64 40
GU.CIRO.HHZ. 2024-08-18T11:46:09.56 0.6 undecidable manual S 166 37.0296 101 -0.03 51
IV.MRGE.HHZ. 2024-08-18T11:46:08.38 0.6 undecidable manual S 240 35.0427 101 -0.52 46
GU.SATI.HHZ. 2024-08-18T11:46:07.37 0.6 undecidable manual S 100 32.4453 102 -0.66 44
GU.LSD.HHZ. 2024-08-18T11:46:07.54 0.6 undecidable manual P 206 57.3981 50 0.25 47
IV.ORO.EHZ. 2024-08-18T11:46:06.70 0.3 undecidable manual P 129 52.6029 50 0.15 73
GU.CIRO.HHZ. 2024-08-18T11:46:04.22 0.1 undecidable manual P 166 37.0296 101 0.16 100
IV.MRGE.HHZ. 2024-08-18T11:46:03.81 0.6 undecidable manual P 240 35.0427 101 0.15 50
GU.SATI.HHZ. 2024-08-18T11:46:03.40 0.1 negative manual P 100 32.4453 102 0.23 99
CH.DIX.HHZ. 2024-08-18T11:46:02.69 0.1 undecidable manual S 348 17.4714 112 -0.34 100
CH.DIX.HHZ. 2024-08-18T11:46:00.66 0.1 undecidable manual P 348 17.4714 112 0.39 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CH.DIX.HHE. ML:2.5 0.00299 0.18 AML other m 2024-08-18T11:46:03.07
CH.DIX.HHN. ML:2.2 0.001465 0.66 AML other m 2024-08-18T11:46:03.28
GU.SATI.HHE. ML:1.8 0.000279 1.52 AML other m 2024-08-18T11:46:08.91
GU.SATI.HHN. ML:2.0 0.000452 1.24 AML other m 2024-08-18T11:46:08.86
IV.ORO.EHE. ML:1.9 0.00019350000000000001 0.24 AML other m 2024-08-18T11:46:14.23
GU.LSD.HHE. ML:1.9 0.0001735 0.18 AML other m 2024-08-18T11:46:15.48
IV.ORO.EHN. ML:2.0 0.00023150000000000002 0.2 AML other m 2024-08-18T11:46:15.51
IV.ORO.HNN. ML:2.3 0.000513 0.22 AML other m 2024-08-18T11:46:15.51
GU.LSD.HHN. ML:1.6 0.00009669999999999999 0.4 AML other m 2024-08-18T11:46:16.73
IV.ORO.HNE. ML:2.3 0.000481 1.02 AML other m 2024-08-18T11:46:17.89
GU.RSP.HHE. ML:1.6 0.00004555 0.74 AML other m 2024-08-18T11:46:25.46
GU.RSP.HNE. ML:2.3 0.0002195 0.72 AML other m 2024-08-18T11:46:25.46
GU.RSP.HHN. ML:1.6 0.000049250000000000004 0.84 AML other m 2024-08-18T11:46:25.41
GU.RSP.HNN. ML:2.3 0.0002575 0.84 AML other m 2024-08-18T11:46:25.41
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
Waveforms Seismic signals in miniseed + resp format Download