A magnitude ML 0.9 earthquake occured in region: 10 km NE Courmayeur (AO), on
and geographic coordinates (lat, lon) 45.8710, 7.0270 at 11 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.
Municipality | Region | Distance (km) | Inhabitants | Cumulative Inhabitants |
---|---|---|---|---|
Courmayeur | AO | 10 | 2807 | 2807 |
Pré-Saint-Didier | AO | 12 | 1050 | 3857 |
Morgex | AO | 13 | 2104 | 5961 |
Saint-Rhémy-en-Bosses | AO | 13 | 338 | 6299 |
La Salle | AO | 14 | 2087 | 8386 |
Saint-Oyen | AO | 15 | 203 | 8589 |
Etroubles | AO | 17 | 501 | 9090 |
La Thuile | AO | 18 | 761 | 9851 |
Avise | AO | 20 | 305 | 10156 |
No Italian municipalities within 100 km from the epicenter with at least 50000 inhabitants.
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2020-12-04 08:38:26 |
45.8712 | 7.0268 | 11 | 2020-12-04 08:47:35 |
Sala Sismica INGV-Roma | 85194371 |
Field | Value |
---|---|
Time (UTC) | 2020-12-04 08:38:26 ± 0.21 |
Latitude | 45.8712 ± 0.0108 |
Longitude | 7.0268 ± 0.0168 |
Depth (km) | 11 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 85194371 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1459 |
Semi-minor axis of confidence ellipse (meter) | 1021 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 307 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1460.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 164 |
Number of associated phases, regardless of their use for origin computation | 10 |
Number of defining phases | 10 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.38 |
Epicentral distance of station closest to the epicenter (degree) | 0.07015 |
Epicentral distance of station farthest from the epicenter (degree) | 0.41818 |
Number of stations at which the event was observed | 5 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.2 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 85194371 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-12-04 08:47:35 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.LSD.HHZ. | 2020-12-04T08:38:41.14 | 0.1 | undecidable | manual | S | 170 | 46.4202 | 50 | -0.32 | 88 |
CH.DIX.HHZ. | 2020-12-04T08:38:38.70 | 0.1 | undecidable | manual | S | 52 | 37.4292 | 50 | -0.36 | 89 |
GU.LSD.HHZ. | 2020-12-04T08:38:35.71 | 0.1 | undecidable | manual | P | 170 | 46.4202 | 50 | 0.53 | 84 |
CH.DIX.HHZ. | 2020-12-04T08:38:34.61 | 1.0 | positive | manual | P | 52 | 37.4292 | 50 | 0.81 | 19 |
IV.MRGE.HHZ. | 2020-12-04T08:38:31.75 | 0.6 | undecidable | manual | S | 167 | 11.5773 | 134 | -0.41 | 46 |
GU.REMY.HHZ. | 2020-12-04T08:38:31.82 | 0.3 | undecidable | manual | S | 110 | 10.6782 | 136 | -0.12 | 73 |
GU.BLANC.HHZ. | 2020-12-04T08:38:30.84 | 0.6 | undecidable | manual | S | 248 | 7.7811 | 145 | -0.46 | 46 |
GU.REMY.HHZ. | 2020-12-04T08:38:30.03 | 0.1 | undecidable | manual | P | 110 | 10.6782 | 136 | 0.34 | 93 |
IV.MRGE.HHZ. | 2020-12-04T08:38:29.96 | 0.1 | undecidable | manual | P | 167 | 11.5773 | 134 | 0.15 | 97 |
GU.BLANC.HHZ. | 2020-12-04T08:38:29.35 | 0.1 | undecidable | manual | P | 248 | 7.7811 | 145 | 0.03 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MRGE.HHE. | ML:1.2 | 0.0001645 | 0.2 | AML | other | m | 2020-12-04T08:38:31.82 |
IV.MRGE.HHN. | ML:0.9 | 0.000079070298 | 0.0832 | AML | other | m | 2020-12-04T08:38:31.89 |
GU.REMY.HHE. | ML:0.7 | 0.0000597486995 | 0.1024 | AML | other | m | 2020-12-04T08:38:31.91 |
GU.REMY.HHN. | ML:0.7 | 0.00005615729 | 0.1856 | AML | other | m | 2020-12-04T08:38:31.95 |