A magnitude Md 2.1 earthquake occured in region: 4 km SE Pisa (PI), on
and geographic coordinates (lat, lon) 43.6950, 10.4450 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 |
---|---|---|---|---|
Pisa | PI | 4 | 89158 | 89158 |
Calci | PI | 7 | 6426 | 95584 |
San Giuliano Terme | PI | 8 | 31399 | 126983 |
Cascina | PI | 9 | 45257 | 172240 |
Vecchiano | PI | 11 | 12189 | 184429 |
Vicopisano | PI | 11 | 8559 | 192988 |
Collesalvetti | LI | 12 | 16827 | 209815 |
Buti | PI | 12 | 5791 | 215606 |
Calcinaia | PI | 14 | 12439 | 228045 |
Bientina | PI | 14 | 8062 | 236107 |
Fauglia | PI | 15 | 3682 | 239789 |
Pontedera | PI | 16 | 29223 | 269012 |
Crespina Lorenzana | PI | 17 | 5457 | 274469 |
Ponsacco | PI | 17 | 15611 | 290080 |
Lucca | LU | 17 | 89046 | 379126 |
Livorno | LI | 19 | 159219 | 538345 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.1 | 1985-03-17 12:15:02 |
43.695 | 10.445 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 3319 |
Field | Value |
---|---|
Time (UTC) | 1985-03-17 12:15:02 ± 1.201 |
Latitude | 43.6950 ± 0.0518 |
Longitude | 10.4450 ± 0.1079 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 3319 |
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) | 10413.4 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 283 |
Number of associated phases, regardless of their use for origin computation | 5 |
Number of defining phases | 5 |
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) | 0.00057 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00979 |
Number of stations at which the event was observed | 3 |
Number of stations from which data was used for origin computation | 3 |
Field | Value |
---|---|
Value | 2.1 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | Md |
Reference to an origin | 3319 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:08:06 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.CH1.Z. | 1985-03-17T12:15:40.00 | 10.0 | undecidable | manual | SN | 93 | 1.0878 | 0.84 | 0.1 | |
--.CH1.Z. | 1985-03-17T12:15:24.00 | 10.0 | undecidable | manual | PN | 93 | 1.0878 | 0.21 | 1.1 | |
--.BD1.Z. | 1985-03-17T12:15:11.50 | 10.0 | undecidable | manual | PG | 16 | 0.3774 | 0.5 | 1 | |
--.PS9.Z. | 1985-03-17T12:15:06.50 | 10.0 | undecidable | manual | SG | 65 | 0.0666 | -0.52 | 0.4 | |
--.PS9.Z. | 1985-03-17T12:15:04.80 | 10.0 | positive | manual | PG | 65 | 0.0666 | -0.43 | 2.4 |