A magnitude ML 1.0 earthquake occured in region: 6 km N Courmayeur (AO), on
and geographic coordinates (lat, lon) 45.8480, 6.9790 at 10 km depth.
The earthquake was located by: Bollettino Sismico Italiano INGV.
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 | 6 | 2807 | 2807 |
Pré-Saint-Didier | AO | 9 | 1050 | 3857 |
Morgex | AO | 11 | 2104 | 5961 |
La Salle | AO | 13 | 2087 | 8048 |
La Thuile | AO | 15 | 761 | 8809 |
Saint-Rhémy-en-Bosses | AO | 16 | 338 | 9147 |
Saint-Oyen | AO | 18 | 203 | 9350 |
Avise | AO | 20 | 305 | 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 |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.0 | 2020-09-15 04:31:21 |
45.8485 | 6.9792 | 10 | 2021-02-26 14:55:57 |
Bollettino Sismico Italiano INGV | 83551411 |
Reviewed Rev100 |
ML 1.0 | 2020-09-15 04:31:21 |
45.8432 | 6.9738 | 9 | 2020-09-15 04:37:19 |
Sala Sismica INGV-Roma | 82916431 |
Field | Value |
---|---|
Time (UTC) | 2020-09-15 04:31:21 ± 0.17 |
Latitude | 45.8485 ± 0.0099 |
Longitude | 6.9792 ± 0.0142 |
Depth (km) | 10 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 83551411 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1151 |
Semi-minor axis of confidence ellipse (meter) | 1007 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 218 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1150.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 99 |
Number of associated phases, regardless of their use for origin computation | 15 |
Number of defining phases | 15 |
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) | 0.03148 |
Epicentral distance of station farthest from the epicenter (degree) | 0.84446 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.3 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 83551411 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2020-10-06 11:09:49 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.2 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 82916431 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-09-15 04:37:19 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.CIRO.HHZ. | 2020-09-15T04:31:38.01 | 0.3 | undecidable | manual | S | 121 | 53.2023 | 50 | -0.64 | 60 |
CH.GIMEL.HHZ. | 2020-09-15T04:31:38.12 | 0.6 | undecidable | manual | P | 324 | 93.7395 | 50 | 0.4 | 40 |
GU.LSD.HHE. | 2020-09-15T04:31:36.03 | 0.3 | undecidable | manual | S | 164 | 44.8218 | 50 | -0.38 | 65 |
CH.DIX.HHZ. | 2020-09-15T04:31:34.69 | 0.6 | undecidable | manual | S | 52 | 41.9247 | 50 | -0.94 | 36 |
GU.TRAV.HHZ. | 2020-09-15T04:31:34.15 | 0.6 | undecidable | manual | P | 122 | 70.1742 | 50 | 0.05 | 45 |
GU.SATI.HHZ. | 2020-09-15T04:31:34.27 | 0.6 | undecidable | manual | P | 87 | 68.7756 | 50 | 0.39 | 42 |
GU.CIRO.HHZ. | 2020-09-15T04:31:31.84 | 0.3 | undecidable | manual | P | 121 | 53.2023 | 50 | 0.36 | 65 |
GU.LSD.HHE. | 2020-09-15T04:31:30.58 | 0.3 | undecidable | manual | P | 164 | 44.8218 | 50 | 0.39 | 65 |
CH.DIX.HHZ. | 2020-09-15T04:31:30.05 | 0.6 | undecidable | manual | P | 52 | 41.9247 | 50 | 0.31 | 44 |
GU.REMY.HHZ. | 2020-09-15T04:31:27.45 | 0.3 | undecidable | manual | S | 95 | 13.7751 | 125 | -0.08 | 74 |
IV.MRGE.HHZ. | 2020-09-15T04:31:26.77 | 0.3 | undecidable | manual | S | 144 | 10.7781 | 132 | 0.05 | 74 |
GU.REMY.HHZ. | 2020-09-15T04:31:25.28 | 0.1 | positive | manual | P | 95 | 13.7751 | 125 | 0.22 | 95 |
GU.BLANC.HHZ. | 2020-09-15T04:31:24.63 | 0.3 | undecidable | manual | S | 263 | 3.4965 | 160 | -0.64 | 65 |
IV.MRGE.HHZ. | 2020-09-15T04:31:24.89 | 0.1 | positive | manual | P | 144 | 10.7781 | 132 | 0.3 | 94 |
GU.BLANC.HHZ. | 2020-09-15T04:31:23.68 | 0.1 | undecidable | manual | P | 263 | 3.4965 | 160 | -0.07 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MRGE.HHE. | ML:1.2 | 0.000188 | 0.08 | AML | other | m | 2020-09-15T04:31:26.92 |
IV.MRGE.HHN. | ML:1.2 | 0.000195 | 1.78 | AML | other | m | 2020-09-15T04:31:27.89 |
GU.REMY.HHE. | ML:0.8 | 0.0000653 | 0.58 | AML | other | m | 2020-09-15T04:31:27.49 |
GU.REMY.HHN. | ML:0.9 | 0.0000741 | 0.64 | AML | other | m | 2020-09-15T04:31:27.55 |
GU.BLANC.HHN. | ML:1.2 | 0.00033165429999999996 | 0.2784 | AML | other | m | 2020-09-15T04:31:24.67 |
GU.BLANC.HHE. | ML:1.0 | 0.0001924828 | 0.2784 | AML | other | m | 2020-09-15T04:31:24.67 |
GU.CIRO.HHE. | ML:0.6 | 0.000012301024 | 3.4592 | AML | other | m | 2020-09-15T04:31:38.95 |
GU.CIRO.HHN. | ML:0.6 | 0.000011669215 | 3.6608 | AML | other | m | 2020-09-15T04:31:38.65 |