Earthquake with magnitude of ML 0.8 on date 20-10-2019 and time 01:47:21 (Italy) in region 6 km E Bionaz (AO)

A magnitude ML 0.8 earthquake occured in region: 6 km E Bionaz (AO), on

  • 19-10-2019 23:47:21 (UTC)
  • 20-10-2019 01:47:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.9, 7.5 at 10 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.

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
Valtournenche AO 10 2277 2732
Chamois AO 12 97 2829
Torgnon AO 12 558 3387
Antey-Saint-André AO 13 602 3989
La Magdeleine AO 14 109 4098
Valpelline AO 15 657 4755
Ollomont AO 15 157 4912
Verrayes AO 15 1302 6214
Saint-Denis AO 17 378 6592
Doues AO 17 510 7102
Chambave AO 17 931 8033
Nus AO 18 2984 11017
Ayas AO 18 1401 12418
Fénis AO 18 1813 14231
Quart AO 18 4039 18270
Saint-Marcel AO 19 1362 19632
Châtillon AO 19 4772 24404
Roisan AO 19 1036 25440
Pontey AO 19 817 26257
Allein AO 20 229 26486
Saint-Christophe AO 20 3432 29918
Brissogne AO 20 1008 30926

Municipalities with at least 50000 inhabitants

An earthquake occurred to
93 Km N of Torino (890529 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 0.8 2019-10-19
23:47:21
45.9 7.5 10 2019-10-19
23:56:37
Sala Sismica INGV-Roma 73349671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-19 23:47:21 ± 0.19
Latitude 45.90 ± 0.01
Longitude 7.50 ± 0.01
Depth (km) 10 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73349671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 970
Semi-minor axis of confidence ellipse (meter) 683
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 336
Circular confidence region, given by single value of horizontal uncertainty (meter) 970
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.19335
Epicentral distance of station farthest from the epicenter (degree) 0.76532
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 73349671
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-19 23:56:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.RSP.HHE. 2019-10-19T23:47:46.89 0.6 undecidable manual S 192 0.7653 50 0.5 41
GU.LSD.HHZ. 2019-10-19T23:47:38.51 0.3 undecidable manual S 210 0.5045 50 -0.16 70
GU.TRAV.HHZ. 2019-10-19T23:47:36.07 0.1 undecidable manual S 155 0.4218 50 -0.15 95
GU.RSP.HHE. 2019-10-19T23:47:35.43 0.1 undecidable manual P 192 0.7653 50 -0.23 87
CH.MMK.HHE. 2019-10-19T23:47:34.59 0.3 undecidable manual S 65 0.3597 50 0.21 71
GU.CIRO.HHE. 2019-10-19T23:47:32.28 0.3 undecidable manual S 170 0.2995 50 -0.3 71
GU.LSD.HHZ. 2019-10-19T23:47:31.65 0.1 undecidable manual P 210 0.5045 50 0.45 88
GU.TRAV.HHZ. 2019-10-19T23:47:30.14 0.1 undecidable manual P 155 0.4218 50 0.35 91
GU.REMY.HHZ. 2019-10-19T23:47:30.43 0.3 undecidable manual S 256 0.2428 50 -0.49 69
GU.SATI.HHZ. 2019-10-19T23:47:30.82 0.3 undecidable manual S 95 0.2608 50 -0.61 66
CH.MMK.HHE. 2019-10-19T23:47:29.04 0.1 undecidable manual P 65 0.3597 50 0.31 93
CH.DIX.HHZ. 2019-10-19T23:47:28.60 0.3 undecidable manual S 342 0.1934 115 -0.59 67
IV.MRGE.HHZ. 2019-10-19T23:47:28.44 0.1 undecidable manual P 247 0.3283 50 0.26 95
GU.REMY.HHZ. 2019-10-19T23:47:27.05 0.1 undecidable manual P 256 0.2428 50 0.32 95
GU.SATI.HHZ. 2019-10-19T23:47:27.21 0.1 undecidable manual P 95 0.2608 50 0.19 98
GU.CIRO.HHE. 2019-10-19T23:47:27.27 0.1 undecidable manual P 170 0.2995 50 -0.41 92
CH.DIX.HHZ. 2019-10-19T23:47:25.86 0.1 undecidable manual P 342 0.1934 115 0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.SATI.HHN. ML:0.7 2.64E-5 1.3 AML other m 2019-10-19T23:47:30.94
GU.REMY.HHE. ML:0.8 3.615E-5 0.48 AML other m 2019-10-19T23:47:30.29
GU.SATI.HHE. ML:0.8 3.31E-5 1.68 AML other m 2019-10-19T23:47:31.07
GU.REMY.HHN. ML:1 5.115E-5 0.56 AML other m 2019-10-19T23:47:31.77
CH.DIX.HHE. ML:1 7.229609E-5 0.2816 AML other m 2019-10-19T23:47:28.41
CH.DIX.HHN. ML:1.3 0.00012820285 0.6912 AML other m 2019-10-19T23:47:28.61
GU.TRAV.HHE. ML:0.6 8.383027E-6 0.1408 AML other m 2019-10-19T23:47:36.46
GU.TRAV.HHN. ML:0.7 1.355216E-5 1.4976 AML other m 2019-10-19T23:47:36.33
GU.LSD.HHE. ML:0.6 9.07985493E-6 0.1792 AML other m 2019-10-19T23:47:38.63
GU.LSD.HHN. ML:0.4 6.600458E-6 1.9072 AML other m 2019-10-19T23:47:38.07
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download