A magnitude ML 1.5 earthquake occured in region: 7 km NE Courmayeur (AO), on
and geographic coordinates (lat, lon) 45.8420, 7.0320 at 12 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 | 9 | 1050 | 3857 |
Morgex | AO | 9 | 2104 | 5961 |
La Salle | AO | 11 | 2087 | 8048 |
Saint-Rhémy-en-Bosses | AO | 12 | 338 | 8386 |
Saint-Oyen | AO | 14 | 203 | 8589 |
La Thuile | AO | 15 | 761 | 9350 |
Etroubles | AO | 16 | 501 | 9851 |
Avise | AO | 17 | 305 | 10156 |
Saint-Nicolas | AO | 17 | 311 | 10467 |
Arvier | AO | 19 | 873 | 11340 |
Allein | AO | 19 | 229 | 11569 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.5 | 2023-10-08 01:46:48 |
45.8417 | 7.0323 | 12 | 2023-10-08 01:54:55 |
Sala Sismica INGV-Roma | 121874651 |
Field | Value |
---|---|
Time (UTC) | 2023-10-08 01:46:48 ± 0.27 |
Latitude | 45.8417 ± 0.0081 |
Longitude | 7.0323 ± 0.0232 |
Depth (km) | 12 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 121874651 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1809 |
Semi-minor axis of confidence ellipse (meter) | 533 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 278 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1810.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 238 |
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) | 0.33 |
Epicentral distance of station closest to the epicenter (degree) | 0.07464 |
Epicentral distance of station farthest from the epicenter (degree) | 0.59715 |
Number of stations at which the event was observed | 6 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 1.5 |
Uncertainty | 0.2 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 121874651 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-10-08 01:54:55 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.CIRO.HHZ. | 2023-10-08T01:47:04.27 | 0.1 | undecidable | manual | S | 122 | 49.3173 | 91 | -0.11 | 91 |
GU.LSD.HHZ. | 2023-10-08T01:47:02.48 | 0.1 | undecidable | manual | S | 169 | 43.1235 | 91 | -0.25 | 88 |
CH.DIX.HHZ. | 2023-10-08T01:47:01.07 | 0.1 | undecidable | manual | S | 47 | 39.2274 | 91 | -0.63 | 84 |
GU.TRAV.HHZ. | 2023-10-08T01:47:00.45 | 1.0 | undecidable | manual | P | 123 | 66.2781 | 91 | 0.05 | 23 |
GU.SATI.HHZ. | 2023-10-08T01:47:00.52 | 0.6 | negative | manual | P | 86 | 64.6908 | 91 | 0.36 | 43 |
GU.CIRO.HHZ. | 2023-10-08T01:46:58.28 | 0.3 | undecidable | manual | P | 122 | 49.3173 | 91 | 0.5 | 65 |
GU.LSD.HHZ. | 2023-10-08T01:46:57.01 | 0.6 | positive | manual | P | 169 | 43.1235 | 91 | 0.18 | 47 |
CH.DIX.HHZ. | 2023-10-08T01:46:56.39 | 0.6 | positive | manual | P | 47 | 39.2274 | 91 | 0.16 | 46 |
IV.MRGE.HHZ. | 2023-10-08T01:46:53.61 | 0.1 | undecidable | manual | S | 164 | 8.2806 | 132 | -0.06 | 98 |
IV.MRGE.HHZ. | 2023-10-08T01:46:51.74 | 0.1 | undecidable | manual | P | 164 | 8.2806 | 132 | 0.14 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MRGE.HHE. | ML:1.6 | 0.0005515 | 0.2 | AML | other | m | 2023-10-08T01:46:53.72 |
IV.MRGE.HHN. | ML:1.4 | 0.0002945 | 0.08 | AML | other | m | 2023-10-08T01:46:53.70 |