A magnitude ML 1.1 earthquake occured in region: 9 km NE Courmayeur (AO), on
and geographic coordinates (lat, lon) 45.8600, 7.0340 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 | 9 | 2807 | 2807 |
Pré-Saint-Didier | AO | 11 | 1050 | 3857 |
Morgex | AO | 11 | 2104 | 5961 |
Saint-Rhémy-en-Bosses | AO | 12 | 338 | 6299 |
La Salle | AO | 13 | 2087 | 8386 |
Saint-Oyen | AO | 15 | 203 | 8589 |
Etroubles | AO | 16 | 501 | 9090 |
La Thuile | AO | 17 | 761 | 9851 |
Avise | AO | 19 | 305 | 10156 |
Saint-Nicolas | AO | 19 | 311 | 10467 |
Allein | AO | 19 | 229 | 10696 |
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 1.1 | 2020-09-23 03:38:21 |
45.8602 | 7.0337 | 12 | 2020-09-23 03:52:35 |
Sala Sismica INGV-Roma | 83149401 |
Field | Value |
---|---|
Time (UTC) | 2020-09-23 03:38:21 ± 0.25 |
Latitude | 45.8602 ± 0.0108 |
Longitude | 7.0337 ± 0.0258 |
Depth (km) | 12 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 83149401 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1558 |
Semi-minor axis of confidence ellipse (meter) | 1517 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 122 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1560.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 153 |
Number of associated phases, regardless of their use for origin computation | 9 |
Number of defining phases | 9 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.3 |
Epicentral distance of station closest to the epicenter (degree) | 0.07105 |
Epicentral distance of station farthest from the epicenter (degree) | 0.40649 |
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 | 1.1 |
Uncertainty | 0.2 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 83149401 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-09-23 03:52:35 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.LSD.HHE. | 2020-09-23T03:38:36.03 | 0.6 | undecidable | manual | S | 170 | 45.1215 | 91 | -0.23 | 46 |
CH.DIX.HHZ. | 2020-09-23T03:38:33.85 | 0.3 | undecidable | manual | S | 50 | 37.8288 | 92 | -0.46 | 64 |
GU.LSD.HHE. | 2020-09-23T03:38:30.65 | 1.0 | undecidable | manual | P | 170 | 45.1215 | 91 | 0.52 | 21 |
CH.DIX.HHZ. | 2020-09-23T03:38:29.22 | 0.1 | undecidable | manual | P | 50 | 37.8288 | 92 | 0.22 | 94 |
IV.MRGE.HHZ. | 2020-09-23T03:38:26.66 | 0.6 | undecidable | manual | S | 168 | 10.2786 | 124 | -0.43 | 47 |
GU.REMY.HHZ. | 2020-09-23T03:38:26.97 | 0.6 | undecidable | manual | S | 105 | 9.7791 | 126 | -0.02 | 51 |
GU.REMY.HHZ. | 2020-09-23T03:38:25.09 | 0.1 | negative | manual | P | 105 | 9.7791 | 126 | 0.31 | 96 |
IV.MRGE.HHZ. | 2020-09-23T03:38:24.93 | 0.1 | positive | manual | P | 168 | 10.2786 | 124 | 0.09 | 100 |
GU.BLANC.HHZ. | 2020-09-23T03:38:24.23 | 1.0 | undecidable | manual | P | 257 | 7.881 | 135 | -0.33 | 24 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.BLANC.HHE. | ML:1.5 | 0.0003968382 | 0.0992 | AML | other | m | 2020-09-23T03:38:24.40 |
GU.BLANC.HHN. | ML:1.5 | 0.00039297510000000003 | 0.0992 | AML | other | m | 2020-09-23T03:38:24.49 |
IV.MRGE.HHE. | ML:1.2 | 0.0001693919 | 0.0784 | AML | other | m | 2020-09-23T03:38:26.87 |
IV.MRGE.HHN. | ML:1.0 | 0.000112392955 | 0.0608 | AML | other | m | 2020-09-23T03:38:26.91 |
GU.REMY.HHE. | ML:1.0 | 0.00011355479999999999 | 0.0992 | AML | other | m | 2020-09-23T03:38:27.00 |
GU.REMY.HHN. | ML:0.9 | 0.00008596802500000001 | 0.08 | AML | other | m | 2020-09-23T03:38:27.14 |
CH.DIX.HHE. | ML:1.1 | 0.00004481311 | 0.2112 | AML | other | m | 2020-09-23T03:38:34.04 |
CH.DIX.HHN. | ML:1.0 | 0.0000340224605 | 0.1904 | AML | other | m | 2020-09-23T03:38:34.81 |