Earthquake with magnitude of ML 0.6 on date 19-07-2020 and time 23:43:29 (Italy) in region 7 km NW Ollomont (AO)

A magnitude ML 0.6 earthquake occured in region: 7 km NW Ollomont (AO), on

  • 19-07-2020 21:43:29 (UTC)
  • 19-07-2020 23:43:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.9120, 7.2860 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Ollomont AO 7 157 157
Valpelline AO 10 657 814
Oyace AO 10 219 1033
Doues AO 10 510 1543
Etroubles AO 11 501 2044
Allein AO 11 229 2273
Saint-Oyen AO 11 203 2476
Bionaz AO 12 236 2712
Saint-Rhémy-en-Bosses AO 13 338 3050
Roisan AO 14 1036 4086
Gignod AO 15 1710 5796
Saint-Christophe AO 19 3432 9228
Aosta AO 20 34390 43618

Municipalities with at least 50000 inhabitants

An earthquake occurred to
98 Km NW 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 0.6 2020-07-19
21:43:29
45.9117 7.2857 7 2020-07-19
21:52:22
Sala Sismica INGV-Roma 81168991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-19 21:43:29 ± 0.32
Latitude 45.9117 ± 0.0297
Longitude 7.2857 ± 0.0465
Depth (km) 7 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81168991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 4767
Semi-minor axis of confidence ellipse (meter) 663
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 312
Circular confidence region, given by single value of horizontal uncertainty (meter) 4770.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 159
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.48
Epicentral distance of station closest to the epicenter (degree) 0.18886
Epicentral distance of station farthest from the epicenter (degree) 0.51261
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 81168991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-19 21:52:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.LSD.HHE. 2020-07-19T21:43:45.91 0.3 undecidable manual S 193 51.5151 50 -0.88 62
GU.SATI.HHZ. 2020-07-19T21:43:44.75 0.1 undecidable manual S 95 45.2214 50 -0.35 91
GU.CIRO.HHZ. 2020-07-19T21:43:43.69 0.1 undecidable manual S 147 40.7259 50 -0.22 91
GU.TRAV.HHE. 2020-07-19T21:43:41.06 0.1 undecidable manual P 141 56.8986 50 0.7 82
GU.LSD.HHE. 2020-07-19T21:43:39.77 0.1 undecidable manual P 193 51.5151 50 0.24 89
GU.SATI.HHZ. 2020-07-19T21:43:38.71 0.6 undecidable manual P 95 45.2214 50 0.15 47
GU.CIRO.HHZ. 2020-07-19T21:43:38.39 0.1 undecidable manual P 147 40.7259 50 0.52 89
IV.MRGE.HHZ. 2020-07-19T21:43:37.72 0.1 undecidable manual S 228 23.4543 106 -0.37 92
CH.DIX.HHZ. 2020-07-19T21:43:36.74 0.1 undecidable manual S 27 20.9679 108 -0.52 92
CH.DIX.HHZ. 2020-07-19T21:43:34.12 0.1 undecidable manual P 27 20.9679 108 0.08 100
IV.MRGE.HHZ. 2020-07-19T21:43:34.63 0.3 undecidable manual P 228 23.4543 106 0.12 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MRGE.HHN. ML:0.8 0.00004654999999999999 1.1 AML other m 2020-07-19T21:43:38.61
IV.MRGE.HHE. ML:1.0 0.0000761 0.34 AML other m 2020-07-19T21:43:38.38
GU.CIRO.HHE. ML:0.5 0.0000104875875 2.0864 AML other m 2020-07-19T21:43:44.06
GU.CIRO.HHN. ML:0.5 0.00001042739 2.112 AML other m 2020-07-19T21:43:44.00
GU.SATI.HHE. ML:0.5 0.000010829877 0.6912 AML other m 2020-07-19T21:43:45.85
GU.SATI.HHN. ML:0.5 0.0000094318145 0.0512 AML other m 2020-07-19T21:43:46.31
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