A magnitude ML 1.1 earthquake occured in region: 7 km NE Courmayeur (AO), on
and geographic coordinates (lat, lon) 45.8550, 7.0050 at 9 km depth.
The earthquake was located by: Bollettino Sismico Italiano INGV.
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 | 10 | 1050 | 3857 |
Morgex | AO | 11 | 2104 | 5961 |
La Salle | AO | 13 | 2087 | 8048 |
Saint-Rhémy-en-Bosses | AO | 14 | 338 | 8386 |
La Thuile | AO | 16 | 761 | 9147 |
Saint-Oyen | AO | 17 | 203 | 9350 |
Etroubles | AO | 18 | 501 | 9851 |
Avise | AO | 19 | 305 | 10156 |
Saint-Nicolas | AO | 20 | 311 | 10467 |
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 |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.1 | 2020-09-28 02:47:29 |
45.8553 | 7.0047 | 9 | 2021-02-26 14:55:56 |
Bollettino Sismico Italiano INGV | 83326501 |
Reviewed Rev100 |
ML 1.1 | 2020-09-28 02:47:28 |
45.8672 | 6.9672 | 9 | 2020-09-28 02:52:48 |
Sala Sismica INGV-Roma | 83319631 |
Field | Value |
---|---|
Time (UTC) | 2020-09-28 02:47:29 ± 0.12 |
Latitude | 45.8553 ± 0.0072 |
Longitude | 7.0047 ± 0.0103 |
Depth (km) | 9 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 83326501 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 805 |
Semi-minor axis of confidence ellipse (meter) | 760 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 197 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 810.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 88 |
Number of associated phases, regardless of their use for origin computation | 23 |
Number of defining phases | 23 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.34 |
Epicentral distance of station closest to the epicenter (degree) | 0.05036 |
Epicentral distance of station farthest from the epicenter (degree) | 1.34988 |
Number of stations at which the event was observed | 14 |
Number of stations from which data was used for origin computation | 14 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.4 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 83326501 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2020-11-25 18:09:45 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.3 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 83319631 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-09-28 02:52:48 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.RRL.HHE. | 2020-09-28T02:47:59.90 | 0.6 | undecidable | manual | S | 189 | 105.0171 | 50 | -0.44 | 39 |
CH.GIMEL.HHZ. | 2020-09-28T02:47:57.70 | 0.6 | undecidable | manual | S | 323 | 94.239 | 50 | 0.23 | 42 |
GU.PZZ.HHE. | 2020-09-28T02:47:54.89 | 0.6 | undecidable | manual | P | 177 | 149.8389 | 50 | 0.75 | 32 |
GU.RSP.HNN. | 2020-09-28T02:47:53.60 | 1.0 | undecidable | manual | S | 165 | 81.0522 | 50 | -0.35 | 21 |
GU.SATI.HHN. | 2020-09-28T02:47:49.90 | 0.6 | undecidable | manual | S | 88 | 66.7776 | 50 | -0.24 | 44 |
GU.BHB.HHN. | 2020-09-28T02:47:49.68 | 0.3 | undecidable | manual | P | 170 | 114.8961 | 50 | 0.93 | 48 |
GU.RRL.HHE. | 2020-09-28T02:47:47.67 | 0.6 | undecidable | manual | P | 189 | 105.0171 | 50 | 0.44 | 39 |
CH.GIMEL.HHZ. | 2020-09-28T02:47:46.11 | 0.1 | undecidable | manual | P | 323 | 94.239 | 50 | 0.54 | 78 |
MN.BNI.HHN. | 2020-09-28T02:47:45.35 | 0.1 | undecidable | manual | P | 196 | 92.6406 | 50 | 0.02 | 88 |
GU.CIRO.HHZ. | 2020-09-28T02:47:45.41 | 0.6 | undecidable | manual | S | 123 | 51.9036 | 50 | -0.77 | 38 |
GU.RSP.HNN. | 2020-09-28T02:47:43.82 | 0.6 | undecidable | manual | P | 165 | 81.0522 | 50 | 0.29 | 42 |
CH.DIX.HHZ. | 2020-09-28T02:47:42.40 | 0.3 | undecidable | manual | S | 51 | 39.8268 | 50 | -0.56 | 64 |
GU.TRAV.HHZ. | 2020-09-28T02:47:41.76 | 0.1 | undecidable | manual | P | 123 | 68.9754 | 50 | 0.09 | 90 |
GU.SATI.HHN. | 2020-09-28T02:47:41.15 | 0.6 | undecidable | manual | P | 88 | 66.7776 | 50 | -0.19 | 45 |
GU.CIRO.HHZ. | 2020-09-28T02:47:38.97 | 0.1 | undecidable | manual | P | 123 | 51.9036 | 50 | -0.08 | 94 |
GU.LSD.HHZ. | 2020-09-28T02:47:37.71 | 0.1 | undecidable | manual | P | 167 | 45.0216 | 50 | -0.28 | 91 |
CH.DIX.HHZ. | 2020-09-28T02:47:36.92 | 1.0 | negative | manual | P | 51 | 39.8268 | 50 | -0.27 | 23 |
GU.REMY.HHZ. | 2020-09-28T02:47:34.78 | 0.3 | undecidable | manual | S | 99 | 11.877 | 126 | 0.39 | 71 |
IV.MRGE.HHZ. | 2020-09-28T02:47:33.91 | 0.3 | undecidable | manual | S | 155 | 10.4784 | 129 | -0.09 | 75 |
GU.REMY.HHZ. | 2020-09-28T02:47:32.60 | 0.1 | undecidable | manual | P | 99 | 11.877 | 126 | 0.36 | 95 |
GU.BLANC.HHZ. | 2020-09-28T02:47:32.18 | 0.6 | undecidable | manual | S | 257 | 5.5944 | 147 | -0.68 | 43 |
IV.MRGE.HHZ. | 2020-09-28T02:47:32.12 | 0.1 | undecidable | manual | P | 155 | 10.4784 | 129 | 0.11 | 100 |
GU.BLANC.HHZ. | 2020-09-28T02:47:30.84 | 0.1 | undecidable | manual | P | 257 | 5.5944 | 147 | -0.51 | 92 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.BLANC.HHN. | ML:2.0 | 0.0018458334999999998 | 0.12 | AML | other | m | 2020-09-28T02:47:31.72 |
GU.BLANC.HHE. | ML:1.9 | 0.0015770125 | 0.16 | AML | other | m | 2020-09-28T02:47:32.16 |
IV.MRGE.HHE. | ML:1.2 | 0.00022963185 | 0.12 | AML | other | m | 2020-09-28T02:47:34.19 |
IV.MRGE.HHN. | ML:1.6 | 0.0004904443499999999 | 0.1792 | AML | other | m | 2020-09-28T02:47:34.19 |
CH.DIX.HHE. | ML:1.1 | 0.00003999575 | 0.2304 | AML | other | m | 2020-09-28T02:47:42.37 |
CH.DIX.HHN. | ML:1.1 | 0.000040641995 | 0.3296 | AML | other | m | 2020-09-28T02:47:42.86 |
GU.CIRO.HHE. | ML:0.6 | 0.000008072239 | 0.2192 | AML | other | m | 2020-09-28T02:47:50.60 |
GU.CIRO.HHN. | ML:0.8 | 0.0000148189255 | 0.1808 | AML | other | m | 2020-09-28T02:47:45.46 |
GU.TRAV.HHE. | ML:1.1 | 0.000017755037 | 0.3392 | AML | other | m | 2020-09-28T02:47:53.26 |
GU.TRAV.HHN. | ML:0.9 | 0.000015402985 | 0.1184 | AML | other | m | 2020-09-28T02:47:53.58 |