Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 07-09-2020 and time 20:11:48 (UTC) in region 4 km SW Morgex (AO)

A magnitude ML 0.7 earthquake occured in region: 4 km SW Morgex (AO), on

  • 07-09-2020 20:11:48 (UTC)
  • 07-09-2020 22:11:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.7250, 7.0200 at 8 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
Morgex AO 4 2104 2104
La Salle AO 5 2087 4191
Pré-Saint-Didier AO 5 1050 5241
La Thuile AO 6 761 6002
Courmayeur AO 9 2807 8809
Avise AO 10 305 9114
Valgrisenche AO 11 196 9310
Saint-Nicolas AO 12 311 9621
Arvier AO 12 873 10494
Rhêmes-Saint-Georges AO 13 194 10688
Introd AO 14 658 11346
Villeneuve AO 15 1289 12635
Saint-Pierre AO 16 3165 15800
Saint-Rhémy-en-Bosses AO 17 338 16138
Aymavilles AO 17 2086 18224
Sarre AO 19 4927 23151
Saint-Oyen AO 19 203 23354
Rhêmes-Notre-Dame AO 19 89 23443
Etroubles AO 20 501 23944
Jovençan AO 20 736 24680

Municipalities with at least 50000 inhabitants

An earthquake occurred to
89 Km NW of Torino (890529 inhabitants)
96 Km NW of Moncalieri (57294 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 0.7 2020-09-07
20:11:48		 45.7253 7.0203 8 2020-09-07
20:21:05		 Sala Sismica INGV-Roma 82717341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-07 20:11:48 ± 0.19
Latitude 45.7253 ± 0.0072
Longitude 7.0203 ± 0.0167
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82717341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1174
Semi-minor axis of confidence ellipse (meter) 856
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 274
Circular confidence region, given by single value of horizontal uncertainty (meter) 1170.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 170
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.05216
Epicentral distance of station farthest from the epicenter (degree) 0.60165
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:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 82717341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-07 20:21:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.CIRO.HHZ. 2020-09-07T20:12:02.55 0.6 undecidable manual S 108 44.622 50 -0.64 40
GU.RSP.HHE. 2020-09-07T20:12:00.52 1.0 undecidable manual P 163 66.7776 50 0.23 22
GU.LSD.HHZ. 2020-09-07T20:11:58.84 0.6 undecidable manual S 163 30.747 105 -0.47 44
CH.DIX.HHE. 2020-09-07T20:11:57.73 1.0 undecidable manual P 37 49.4172 50 0.12 23
GU.CIRO.HHZ. 2020-09-07T20:11:57.21 1.0 undecidable manual P 108 44.622 50 0.34 22
GU.LSD.HHZ. 2020-09-07T20:11:54.98 0.3 positive manual P 163 30.747 105 0.35 68
GU.REMY.HHZ. 2020-09-07T20:11:54.54 0.6 undecidable manual S 40 16.2726 117 -0.07 49
GU.BLANC.HHE. 2020-09-07T20:11:53.62 0.6 undecidable manual S 333 14.7741 120 -0.53 45
GU.REMY.HHZ. 2020-09-07T20:11:52.41 0.3 positive manual P 40 16.2726 117 0.49 68
IV.MRGE.HHZ. 2020-09-07T20:11:51.42 0.6 undecidable manual S 33 5.7942 145 -0.37 47
GU.BLANC.HHE. 2020-09-07T20:11:51.64 0.1 undecidable manual P 333 14.7741 120 0 100
IV.MRGE.HHZ. 2020-09-07T20:11:50.51 0.1 negative manual P 33 5.7942 145 0.22 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MRGE.HHE. ML:1.2 0.00028201355 0.0512 AML other m 2020-09-07T20:11:51.47
IV.MRGE.HHN. ML:1.1 0.0002246513 0.064 AML other m 2020-09-07T20:11:51.53
GU.REMY.HHE. ML:0.5 0.000031356474999999995 0.0896 AML other m 2020-09-07T20:11:54.92
GU.REMY.HHN. ML:0.5 0.00002835491 0.3456 AML other m 2020-09-07T20:11:56.79
GU.LSD.HHN. ML:0.6 0.00002077016 0.0768 AML other m 2020-09-07T20:11:58.96
GU.CIRO.HHE. ML:0.5 0.000008576908000000001 0.2432 AML other m 2020-09-07T20:12:02.83
GU.CIRO.HHN. ML:0.9 0.000026773659999999998 0.1792 AML other m 2020-09-07T20:12:02.89
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