A magnitude Md 2.1 earthquake occured in region: Confine Italia Francia (FRANCIA), on
and geographic coordinates (lat, lon) 44.7750, 6.7630 at 10 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 |
---|---|---|---|---|
Claviere | TO | 18 | 214 | 214 |
Cesana Torinese | TO | 20 | 967 | 1181 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.1
M 2.3 |
1987-02-11 05:54:30 |
44.775 | 6.763 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 41029 |
Field | Value |
---|---|
Time (UTC) | 1987-02-11 05:54:30 ± 0.278 |
Latitude | 44.7750 ± 0.0083 |
Longitude | 6.7630 ± 0.0304 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 41029 |
Field | Value |
---|---|
Preferred uncertainty description | horizontal uncertainty |
Semi-major axis of confidence ellipse (meter) | |
Semi-minor axis of confidence ellipse (meter) | |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 2573.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 227 |
Number of associated phases, regardless of their use for origin computation | 8 |
Number of defining phases | 8 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.1 |
Epicentral distance of station closest to the epicenter (degree) | 0.00130 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00461 |
Number of stations at which the event was observed | 4 |
Number of stations from which data was used for origin computation | 4 |
Field | Value |
---|---|
Value | 2.1 |
Uncertainty | |
Num. used stations | 1 |
Type of magnitude | Md |
Reference to an origin | 41029 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:40:53 |
Field | Value |
---|---|
Value | 2.3 |
Uncertainty | |
Num. used stations | |
Type of magnitude | M |
Reference to an origin | 41029 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2015-04-28 09:48:29 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.RSP.Z. | 1987-02-11T05:54:49.30 | 10.0 | undecidable | manual | SG | 42 | 0.5106 | 0.17 | 0.5 | |
--.DA9.Z. | 1987-02-11T05:54:46.00 | 10.0 | undecidable | manual | SG | 128 | 0.4329 | -0.68 | 0 | |
--.SOO.Z. | 1987-02-11T05:54:44.40 | 10.0 | undecidable | manual | SG | 138 | 0.3552 | 0.15 | 0.7 | |
--.RSP.Z. | 1987-02-11T05:54:41.60 | 10.0 | undecidable | manual | PG | 42 | 0.5106 | 0.25 | 1.1 | |
--.DA9.Z. | 1987-02-11T05:54:40.00 | 10.0 | undecidable | manual | PG | 128 | 0.4329 | 0.06 | 1.7 | |
--.SOO.Z. | 1987-02-11T05:54:38.60 | 10.0 | undecidable | manual | PG | 138 | 0.3552 | 0.07 | 1.9 | |
--.RRL.Z. | 1987-02-11T05:54:36.80 | 10.0 | undecidable | manual | SG | 5 | 0.1443 | -0.52 | 0.1 | |
--.RRL.Z. | 1987-02-11T05:54:34.50 | 10.0 | undecidable | manual | PG | 5 | 0.1443 | -0.04 | 2 |