A magnitude ML 1.0 earthquake occured in region: 8 km N Courmayeur (AO), on
and geographic coordinates (lat, lon) 45.8640, 6.9810 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 | 8 | 2807 | 2807 |
Pré-Saint-Didier | AO | 11 | 1050 | 3857 |
Morgex | AO | 13 | 2104 | 5961 |
La Salle | AO | 15 | 2087 | 8048 |
Saint-Rhémy-en-Bosses | AO | 16 | 338 | 8386 |
La Thuile | AO | 17 | 761 | 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 1.0 | 2020-09-22 00:42:51 |
45.8645 | 6.9807 | 11 | 2020-09-22 00:49:25 |
Sala Sismica INGV-Roma | 83118751 |
Field | Value |
---|---|
Time (UTC) | 2020-09-22 00:42:51 ± 0.26 |
Latitude | 45.8645 ± 0.0135 |
Longitude | 6.9807 ± 0.0207 |
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 | 83118751 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1628 |
Semi-minor axis of confidence ellipse (meter) | 1352 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 301 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1630.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 176 |
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) | 0.43 |
Epicentral distance of station closest to the epicenter (degree) | 0.03777 |
Epicentral distance of station farthest from the epicenter (degree) | 0.41908 |
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 | 1.0 |
Uncertainty | 0.3 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 83118751 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-09-22 00:49:25 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.LSD.HHZ. | 2020-09-22T00:43:06.57 | 0.3 | undecidable | manual | S | 165 | 46.5201 | 50 | -0.37 | 67 |
CH.DIX.HHZ. | 2020-09-22T00:43:04.77 | 0.3 | undecidable | manual | S | 54 | 40.7259 | 50 | -0.63 | 62 |
GU.LSD.HHZ. | 2020-09-22T00:43:01.30 | 0.6 | undecidable | manual | P | 165 | 46.5201 | 50 | 0.68 | 40 |
CH.DIX.HHZ. | 2020-09-22T00:43:00.05 | 0.3 | undecidable | manual | P | 54 | 40.7259 | 50 | 0.32 | 68 |
GU.REMY.HHZ. | 2020-09-22T00:42:57.92 | 0.3 | undecidable | manual | S | 102 | 13.875 | 127 | -0.14 | 74 |
IV.MRGE.HHZ. | 2020-09-22T00:42:57.33 | 0.3 | undecidable | manual | S | 149 | 12.1767 | 131 | -0.27 | 72 |
IV.MRGE.HHZ. | 2020-09-22T00:42:55.53 | 0.1 | undecidable | manual | P | 149 | 12.1767 | 131 | 0.31 | 96 |
GU.REMY.HHZ. | 2020-09-22T00:42:55.91 | 0.1 | undecidable | manual | P | 102 | 13.875 | 127 | 0.42 | 93 |
GU.BLANC.HHZ. | 2020-09-22T00:42:55.37 | 0.3 | undecidable | manual | S | 238 | 4.1958 | 158 | -0.59 | 67 |
GU.BLANC.HHZ. | 2020-09-22T00:42:54.43 | 0.1 | undecidable | manual | P | 238 | 4.1958 | 158 | 0.15 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.BLANC.HHN. | ML:1.4 | 0.0004545 | 0.46 | AML | other | m | 2020-09-22T00:42:55.83 |
GU.BLANC.HHE. | ML:1.3 | 0.0003325 | 0.12 | AML | other | m | 2020-09-22T00:42:55.80 |
IV.MRGE.HHE. | ML:1.1 | 0.0001505 | 0.16 | AML | other | m | 2020-09-22T00:42:57.57 |
IV.MRGE.HHN. | ML:0.9 | 0.0000893 | 0.42 | AML | other | m | 2020-09-22T00:42:57.43 |
GU.REMY.HHE. | ML:0.6 | 0.000033100000000000005 | 0.6 | AML | other | m | 2020-09-22T00:42:58.05 |
GU.REMY.HHN. | ML:0.4 | 0.000026942735 | 0.64 | AML | other | m | 2020-09-22T00:42:58.06 |
CH.DIX.HHE. | ML:1.1 | 0.000039338325 | 0.99 | AML | other | m | 2020-09-22T00:43:05.02 |
CH.DIX.HHN. | ML:0.9 | 0.0000245898415 | 0.17 | AML | other | m | 2020-09-22T00:43:05.98 |