A magnitude ML 0.8 earthquake occured in region: 4 km N Courmayeur (AO), on
and geographic coordinates (lat, lon) 45.8290, 6.9600 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.
Municipality | Region | Distance (km) | Inhabitants | Cumulative Inhabitants |
---|---|---|---|---|
Courmayeur | AO | 4 | 2807 | 2807 |
Pré-Saint-Didier | AO | 7 | 1050 | 3857 |
Morgex | AO | 10 | 2104 | 5961 |
La Thuile | AO | 12 | 761 | 6722 |
La Salle | AO | 13 | 2087 | 8809 |
Saint-Rhémy-en-Bosses | AO | 17 | 338 | 9147 |
Avise | AO | 19 | 305 | 9452 |
Saint-Oyen | AO | 20 | 203 | 9655 |
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 0.8 | 2020-09-16 20:22:43 |
45.8287 | 6.9603 | 10 | 2020-09-16 20:28:56 |
Sala Sismica INGV-Roma | 82962111 |
Field | Value |
---|---|
Time (UTC) | 2020-09-16 20:22:43 ± 0.44 |
Latitude | 45.8287 ± 0.0315 |
Longitude | 6.9603 ± 0.0271 |
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 | 82962111 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 3511 |
Semi-minor axis of confidence ellipse (meter) | 1983 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 10 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 3510.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 149 |
Number of associated phases, regardless of their use for origin computation | 8 |
Number of defining phases | 8 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.49 |
Epicentral distance of station closest to the epicenter (degree) | 0.02428 |
Epicentral distance of station farthest from the epicenter (degree) | 0.38851 |
Number of stations at which the event was observed | 4 |
Number of stations from which data was used for origin computation | 4 |
Field | Value |
---|---|
Value | 0.8 |
Uncertainty | 0.0 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 82962111 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-09-16 20:28:56 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.LSD.HHZ. | 2020-09-16T20:22:57.07 | 0.3 | undecidable | manual | S | 162 | 43.1235 | 50 | -0.87 | 55 |
GU.LSD.HHZ. | 2020-09-16T20:22:52.51 | 0.1 | undecidable | manual | P | 162 | 43.1235 | 50 | 0.59 | 83 |
GU.REMY.HHZ. | 2020-09-16T20:22:49.56 | 0.6 | undecidable | manual | S | 86 | 15.1737 | 123 | -0.41 | 46 |
IV.MRGE.HHZ. | 2020-09-16T20:22:48.92 | 0.6 | undecidable | manual | S | 130 | 10.1787 | 134 | 0.32 | 47 |
IV.MRGE.HHZ. | 2020-09-16T20:22:47.02 | 1.0 | undecidable | manual | P | 130 | 10.1787 | 134 | 0.5 | 23 |
GU.REMY.HHZ. | 2020-09-16T20:22:47.44 | 0.3 | negative | manual | P | 86 | 15.1737 | 123 | 0.12 | 73 |
GU.BLANC.HHZ. | 2020-09-16T20:22:46.86 | 0.3 | undecidable | manual | S | 311 | 2.6973 | 165 | -0.37 | 71 |
GU.BLANC.HHZ. | 2020-09-16T20:22:45.82 | 0.1 | positive | manual | P | 311 | 2.6973 | 165 | 0.09 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MRGE.HHE. | ML:0.8 | 0.00007915 | 1.62 | AML | other | m | 2020-09-16T20:22:48.15 |
IV.MRGE.HHN. | ML:0.8 | 0.0000917 | 0.36 | AML | other | m | 2020-09-16T20:22:49.07 |