A magnitude ML 1.0 earthquake occured in region: 9 km NE Courmayeur (AO), on
and geographic coordinates (lat, lon) 45.8690, 7.0180 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 | 9 | 2807 | 2807 |
Pré-Saint-Didier | AO | 12 | 1050 | 3857 |
Morgex | AO | 12 | 2104 | 5961 |
Saint-Rhémy-en-Bosses | AO | 14 | 338 | 6299 |
La Salle | AO | 14 | 2087 | 8386 |
Saint-Oyen | AO | 16 | 203 | 8589 |
Etroubles | AO | 18 | 501 | 9090 |
La Thuile | AO | 18 | 761 | 9851 |
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 | 2021-01-07 10:23:31 |
45.8688 | 7.0175 | 11 | 2021-01-07 10:36:07 |
Sala Sismica INGV-Roma | 86070681 |
Field | Value |
---|---|
Time (UTC) | 2021-01-07 10:23:31 ± 0.21 |
Latitude | 45.8688 ± 0.0099 |
Longitude | 7.0175 ± 0.0142 |
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 | 86070681 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1247 |
Semi-minor axis of confidence ellipse (meter) | 1019 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 310 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1250.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 165 |
Number of associated phases, regardless of their use for origin computation | 12 |
Number of defining phases | 12 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.39 |
Epicentral distance of station closest to the epicenter (degree) | 0.06295 |
Epicentral distance of station farthest from the epicenter (degree) | 0.46765 |
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 | 1.0 |
Uncertainty | 0.2 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 86070681 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-01-07 10:36:07 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.CIRO.HHE. | 2021-01-07T10:23:47.92 | 0.3 | undecidable | manual | S | 125 | 51.9036 | 50 | -0.35 | 66 |
GU.LSD.HHZ. | 2021-01-07T10:23:46.51 | 0.1 | undecidable | manual | S | 169 | 46.3203 | 50 | -0.27 | 90 |
CH.DIX.HHE. | 2021-01-07T10:23:44.16 | 0.1 | undecidable | manual | S | 52 | 38.1285 | 50 | -0.44 | 88 |
GU.CIRO.HHE. | 2021-01-07T10:23:41.94 | 0.3 | undecidable | manual | P | 125 | 51.9036 | 50 | 0.57 | 62 |
GU.LSD.HHZ. | 2021-01-07T10:23:40.95 | 0.1 | undecidable | manual | P | 169 | 46.3203 | 50 | 0.44 | 87 |
CH.DIX.HHE. | 2021-01-07T10:23:39.72 | 1.0 | undecidable | manual | P | 52 | 38.1285 | 50 | 0.47 | 22 |
IV.MRGE.HHZ. | 2021-01-07T10:23:37.18 | 0.1 | undecidable | manual | S | 163 | 11.4774 | 134 | -0.29 | 95 |
GU.REMY.HHZ. | 2021-01-07T10:23:37.36 | 0.1 | undecidable | manual | S | 108 | 11.2776 | 134 | -0.05 | 100 |
GU.BLANC.HHZ. | 2021-01-07T10:23:36.03 | 0.1 | undecidable | manual | S | 247 | 6.993 | 148 | -0.44 | 93 |
GU.REMY.HHZ. | 2021-01-07T10:23:35.48 | 0.1 | undecidable | manual | P | 108 | 11.2776 | 134 | 0.38 | 93 |
IV.MRGE.HHZ. | 2021-01-07T10:23:35.39 | 0.1 | undecidable | manual | P | 163 | 11.4774 | 134 | 0.26 | 96 |
GU.BLANC.HHZ. | 2021-01-07T10:23:34.81 | 0.3 | undecidable | manual | P | 247 | 6.993 | 148 | 0.25 | 73 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.BLANC.HHN. | ML:0.8 | 0.00010075000000000001 | 0.38 | AML | other | m | 2021-01-07T10:23:36.56 |
GU.BLANC.HHE. | ML:0.8 | 0.00008549999999999999 | 0.9 | AML | other | m | 2021-01-07T10:23:36.51 |
IV.MRGE.HHN. | ML:1.2 | 0.000158 | 0.08 | AML | other | m | 2021-01-07T10:23:37.36 |
IV.MRGE.HHE. | ML:1.1 | 0.00014450000000000002 | 0.06 | AML | other | m | 2021-01-07T10:23:37.36 |
GU.REMY.HHN. | ML:1.1 | 0.00012940000000000003 | 0.46 | AML | other | m | 2021-01-07T10:23:37.46 |
GU.REMY.HHE. | ML:0.8 | 0.00006545 | 0.64 | AML | other | m | 2021-01-07T10:23:37.79 |