A magnitude Md 2.3 earthquake occured in region: Confine Italia Svizzera (SVIZZERA), on
and geographic coordinates (lat, lon) 46.5050, 9.7510 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.
No Italian municipalities within 20 km distance.
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.3
ML-VAX 1.8 |
1987-12-19 20:41:49 |
46.505 | 9.751 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 59799 |
Field | Value |
---|---|
Time (UTC) | 1987-12-19 20:41:49 ± 0.623 |
Latitude | 46.5050 ± 0.0565 |
Longitude | 9.7510 ± 0.0452 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 59799 |
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) | 7170.9 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 211 |
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) | 0.6 |
Epicentral distance of station closest to the epicenter (degree) | 0.00648 |
Epicentral distance of station farthest from the epicenter (degree) | 0.02364 |
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 | 2.3 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | Md |
Reference to an origin | 59799 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:57:07 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 59799 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2015-04-28 13:07:13 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.RBL.Z. | 1987-12-19T20:42:32.28 | 10.0 | undecidable | manual | PN | 89 | 2.6196 | 0.34 | 1.2 | |
--.SAL.Z. | 1987-12-19T20:42:26.16 | 10.0 | undecidable | manual | SN | 148 | 1.0434 | 0.98 | 0.3 | |
--.VAI.Z. | 1987-12-19T20:42:23.50 | 10.0 | undecidable | manual | SG | 227 | 0.9213 | 1.85 | 0 | |
--.FVI.Z. | 1987-12-19T20:42:23.96 | 10.0 | undecidable | manual | PN? | 86 | 2.0757 | -0.52 | 0.5 | |
--.ORO.Z. | 1987-12-19T20:42:17.20 | 10.0 | undecidable | manual | PN | 235 | 1.4985 | 0.61 | 1.3 | |
--.SAL.Z. | 1987-12-19T20:42:10.67 | 10.0 | undecidable | manual | PN? | 148 | 1.0434 | 0.43 | 0.7 | |
--.VAI.Z. | 1987-12-19T20:42:07.62 | 10.0 | negative | manual | PG | 227 | 0.9213 | -0.59 | 2.9 | |
--.MDI.Z. | 1987-12-19T20:42:03.55 | 10.0 | undecidable | manual | PG | 182 | 0.7215 | -0.88 | 1 |