A magnitude Md 2.5 earthquake occured in region: Svizzera (SVIZZERA), on
and geographic coordinates (lat, lon) 46.3210, 7.2440 at 5 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.
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 |
Md 2.5
M 2.8 |
1987-09-15 02:33:50 |
46.321 | 7.244 | 5 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 55289 |
Field | Value |
---|---|
Time (UTC) | 1987-09-15 02:33:50 ± 0.294 |
Latitude | 46.3210 ± 0.0253 |
Longitude | 7.2440 ± 0.0354 |
Depth (km) | 5 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 55289 |
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) | 3910.8 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 75 |
Number of associated phases, regardless of their use for origin computation | 17 |
Number of defining phases | 17 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.8 |
Epicentral distance of station closest to the epicenter (degree) | 0.00235 |
Epicentral distance of station farthest from the epicenter (degree) | 0.02250 |
Number of stations at which the event was observed | 12 |
Number of stations from which data was used for origin computation | 12 |
Field | Value |
---|---|
Value | 2.5 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | Md |
Reference to an origin | 55289 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:53:13 |
Field | Value |
---|---|
Value | 2.8 |
Uncertainty | |
Num. used stations | |
Type of magnitude | M |
Reference to an origin | 55289 |
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 |
---|---|---|---|---|---|---|---|---|---|---|
--.LOR.Z. | 1987-09-15T02:35:00.90 | 10.0 | undecidable | manual | SN | 293 | 2.4975 | -0.85 | 0.4 | |
--.SMF.Z. | 1987-09-15T02:34:58.90 | 10.0 | undecidable | manual | SN | 279 | 2.3532 | 0.44 | 0.5 | |
--.BN9.Z. | 1987-09-15T02:34:36.00 | 10.0 | undecidable | manual | SN | 197 | 1.3209 | 2.16 | 0.1 | |
--.LOR.Z. | 1987-09-15T02:34:32.00 | 10.0 | undecidable | manual | PN | 293 | 2.4975 | 0.4 | 1.2 | |
--.VAI.Z. | 1987-09-15T02:34:30.00 | 10.0 | undecidable | manual | SN | 112 | 1.1544 | 0.36 | 0.7 | |
--.SMF.Z. | 1987-09-15T02:34:30.80 | 10.0 | undecidable | manual | PN | 279 | 2.3532 | 1.1 | 0.8 | |
--.ORX.Z. | 1987-09-15T02:34:23.00 | 10.0 | undecidable | manual | SG | 143 | 0.8547 | 2.18 | 0.1 | |
--.SAX.Z. | 1987-09-15T02:34:20.60 | 10.0 | undecidable | manual | PN | 56 | 1.7094 | -0.15 | 1.6 | |
--.BN9.Z. | 1987-09-15T02:34:17.00 | 10.0 | undecidable | manual | PN | 197 | 1.3209 | 1.51 | 0.7 | |
--.VAI.Z. | 1987-09-15T02:34:14.00 | 10.0 | undecidable | manual | PN | 112 | 1.1544 | 0.94 | 1.3 | |
--.TMA.Z. | 1987-09-15T02:34:12.40 | 10.0 | undecidable | manual | PN | 100 | 1.1433 | -0.6 | 1.6 | |
--.LPG.Z. | 1987-09-15T02:34:07.10 | 10.0 | undecidable | manual | PG | 202 | 0.888 | -1.49 | 0.7 | |
--.ORX.Z. | 1987-09-15T02:34:07.30 | 10.0 | undecidable | manual | PG | 143 | 0.8547 | -0.67 | 1.6 | |
--.LPL.Z. | 1987-09-15T02:34:06.60 | 10.0 | undecidable | manual | PG | 204 | 0.8769 | -1.76 | 0.5 | |
--.NEC.Z. | 1987-09-15T02:34:05.00 | 10.0 | undecidable | manual | PG | 343 | 0.7104 | -0.32 | 1.8 | |
--.MMK.Z. | 1987-09-15T02:34:01.90 | 10.0 | undecidable | manual | PG | 118 | 0.5661 | -0.68 | 1.5 | |
--.DIX.Z. | 1987-09-15T02:33:56.40 | 10.0 | undecidable | manual | PG | 154 | 0.2553 | -0.02 | 1.9 |