A magnitude Md 2.2 earthquake occured in region: Confine Italia Svizzera (SVIZZERA), on
and geographic coordinates (lat, lon) 46.2110, 7.8830 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.
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 2.2
M 2.3 |
1987-10-28 23:27:25 |
46.211 | 7.883 | 9 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 57819 |
Field | Value |
---|---|
Time (UTC) | 1987-10-28 23:27:25 ± 0.29 |
Latitude | 46.2110 ± 0.0112 |
Longitude | 7.8830 ± 0.0203 |
Depth (km) | 9 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 57819 |
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) | 1999.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 126 |
Number of associated phases, regardless of their use for origin computation | 14 |
Number of defining phases | 14 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.4 |
Epicentral distance of station closest to the epicenter (degree) | 0.00146 |
Epicentral distance of station farthest from the epicenter (degree) | 0.01441 |
Number of stations at which the event was observed | 11 |
Number of stations from which data was used for origin computation | 11 |
Field | Value |
---|---|
Value | 2.2 |
Uncertainty | |
Num. used stations | 1 |
Type of magnitude | Md |
Reference to an origin | 57819 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:55:24 |
Field | Value |
---|---|
Value | 2.3 |
Uncertainty | |
Num. used stations | |
Type of magnitude | M |
Reference to an origin | 57819 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2015-04-28 09:42:56 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.LPG.Z. | 1987-10-28T23:28:02.00 | 10.0 | undecidable | manual | SN | 228 | 1.0656 | 0.63 | 0.2 | |
--.LPL.Z. | 1987-10-28T23:28:01.40 | 10.0 | undecidable | manual | SN | 229 | 1.0545 | 0.09 | 0.5 | |
--.SLE.Z. | 1987-10-28T23:27:53.80 | 10.0 | positive | manual | PN | 14 | 1.5984 | 0.13 | 1.9 | |
--.BNI.Z. | 1987-10-28T23:27:51.80 | 10.0 | undecidable | manual | PN | 216 | 1.4319 | 0.55 | 0.6 | |
--.ZLA.Z. | 1987-10-28T23:27:50.50 | 10.0 | undecidable | manual | PN | 14 | 1.2987 | 0.89 | 0.2 | |
--.ORO.Z. | 1987-10-28T23:27:46.30 | 10.0 | undecidable | manual | SG | 173 | 0.5883 | -0.03 | 0.8 | |
--.LPG.Z. | 1987-10-28T23:27:46.20 | 10.0 | undecidable | manual | PN | 228 | 1.0656 | 0.03 | 1.3 | |
--.VDL.Z. | 1987-10-28T23:27:46.90 | 10.0 | undecidable | manual | PN | 75 | 1.1211 | -0.18 | 1.2 | |
--.LPL.Z. | 1987-10-28T23:27:45.90 | 10.0 | undecidable | manual | PN | 229 | 1.0545 | -0.24 | 1.1 | |
--.LLS.Z. | 1987-10-28T23:27:44.30 | 10.0 | undecidable | manual | PG | 50 | 0.999 | -0.89 | 0.2 | |
--.VAI.Z. | 1987-10-28T23:27:39.20 | 10.0 | undecidable | manual | PG | 118 | 0.6993 | -0.48 | 0.8 | |
--.ORO.Z. | 1987-10-28T23:27:37.20 | 10.0 | positive | manual | PG | 173 | 0.5883 | -0.28 | 2.3 | |
--.DIX.Z. | 1987-10-28T23:27:32.50 | 10.0 | positive | manual | PG | 248 | 0.3552 | -0.63 | 1.2 | |
--.MMK.Z. | 1987-10-28T23:27:30.10 | 10.0 | positive | manual | PG | 160 | 0.1665 | 0.51 | 1.6 |