A magnitude ML 1.2 earthquake occured in region: 7 km N Courmayeur (AO), on
and geographic coordinates (lat, lon) 45.8600, 6.9680 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 | 7 | 2807 | 2807 |
Pré-Saint-Didier | AO | 11 | 1050 | 3857 |
Morgex | AO | 13 | 2104 | 5961 |
La Salle | AO | 15 | 2087 | 8048 |
La Thuile | AO | 16 | 761 | 8809 |
Saint-Rhémy-en-Bosses | AO | 17 | 338 | 9147 |
Saint-Oyen | AO | 19 | 203 | 9350 |
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 1.2 | 2020-09-23 08:59:50 |
45.8598 | 6.9682 | 11 | 2020-09-23 09:06:28 |
Sala Sismica INGV-Roma | 83154531 |
Field | Value |
---|---|
Time (UTC) | 2020-09-23 08:59:50 ± 0.22 |
Latitude | 45.8598 ± 0.0117 |
Longitude | 6.9682 ± 0.0155 |
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 | 83154531 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1353 |
Semi-minor axis of confidence ellipse (meter) | 1109 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 220 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1350.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 177 |
Number of associated phases, regardless of their use for origin computation | 11 |
Number of defining phases | 10 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.32 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.49193 |
Number of stations at which the event was observed | 6 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.2 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 83154531 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-09-23 09:06:28 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.CIRO.HHZ. | 2020-09-23T09:00:07.81 | 0.1 | undecidable | manual | S | 121 | 54.6009 | 50 | -0.2 | 91 |
GU.TRAV.HHZ. | 2020-09-23T09:00:04.25 | 3.0 | undecidable | manual | P | -0.02 | 0 | |||
CH.DIX.HHE. | 2020-09-23T09:00:04.41 | 0.1 | undecidable | manual | S | 54 | 41.8248 | 50 | -0.19 | 93 |
GU.CIRO.HHZ. | 2020-09-23T09:00:01.12 | 0.6 | undecidable | manual | P | 121 | 54.6009 | 50 | 0.32 | 44 |
CH.DIX.HHE. | 2020-09-23T08:59:58.82 | 1.0 | undecidable | manual | P | 54 | 41.8248 | 50 | -0.01 | 24 |
GU.REMY.HHZ. | 2020-09-23T08:59:57.25 | 0.1 | undecidable | manual | S | 99 | 14.7741 | 126 | -0.07 | 100 |
IV.MRGE.HHZ. | 2020-09-23T08:59:56.51 | 0.1 | undecidable | manual | S | 144 | 12.2766 | 132 | -0.15 | 99 |
GU.REMY.HHZ. | 2020-09-23T08:59:55.08 | 0.1 | positive | manual | P | 99 | 14.7741 | 126 | 0.45 | 92 |
IV.MRGE.HHZ. | 2020-09-23T08:59:54.64 | 0.6 | undecidable | manual | P | 144 | 12.2766 | 132 | 0.4 | 47 |
GU.BLANC.HHZ. | 2020-09-23T08:59:54.45 | 0.1 | undecidable | manual | S | 237 | 3.1968 | 164 | -0.44 | 94 |
GU.BLANC.HHZ. | 2020-09-23T08:59:53.49 | 0.1 | negative | manual | P | 237 | 3.1968 | 164 | 0.26 | 98 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.BLANC.HHE. | ML:1.3 | 0.0003016575 | 0.1792 | AML | other | m | 2020-09-23T08:59:55.09 |
GU.BLANC.HHN. | ML:1.3 | 0.0003362047 | 0.1216 | AML | other | m | 2020-09-23T08:59:54.85 |
IV.MRGE.HHE. | ML:1.4 | 0.00026834900000000003 | 0.096 | AML | other | m | 2020-09-23T08:59:56.67 |
IV.MRGE.HHN. | ML:1.3 | 0.0002173186 | 0.0768 | AML | other | m | 2020-09-23T08:59:56.68 |
GU.REMY.HHE. | ML:0.9 | 0.00007856733 | 0.1216 | AML | other | m | 2020-09-23T08:59:57.30 |
GU.REMY.HHN. | ML:0.8 | 0.000059890559999999996 | 0.2816 | AML | other | m | 2020-09-23T08:59:58.36 |