A magnitude Md 2.1 earthquake occured in region: 6 km SE Volterra (PI), on
and geographic coordinates (lat, lon) 43.3720, 10.9250 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 |
---|---|---|---|---|
Volterra | PI | 6 | 10519 | 10519 |
Pomarance | PI | 9 | 5897 | 16416 |
Casole d'Elsa | SI | 10 | 3897 | 20313 |
San Gimignano | SI | 14 | 7820 | 28133 |
Montecatini Val di Cecina | PI | 14 | 1749 | 29882 |
Radicondoli | SI | 16 | 914 | 30796 |
Colle di Val d'Elsa | SI | 17 | 21620 | 52416 |
Castelnuovo di Val di Cecina | PI | 18 | 2231 | 54647 |
Gambassi Terme | FI | 19 | 4870 | 59517 |
Lajatico | PI | 20 | 1336 | 60853 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.1 | 1993-03-22 19:53:54 |
43.372 | 10.925 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 182379 |
Field | Value |
---|---|
Time (UTC) | 1993-03-22 19:53:54 ± 1.089 |
Latitude | 43.3720 ± 0.0760 |
Longitude | 10.9250 ± 0.0398 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 182379 |
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) | 9042.2 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 249 |
Number of associated phases, regardless of their use for origin computation | 7 |
Number of defining phases | 7 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.3 |
Epicentral distance of station closest to the epicenter (degree) | 0.00405 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00704 |
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 | 4 |
Type of magnitude | Md |
Reference to an origin | 182379 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 19:51:08 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.PGD.Z. | 1993-03-22T19:54:22.39 | 10.0 | undecidable | manual | SG | 48 | 0.7659 | 1.13 | 0.1 | |
--.CRE.Z. | 1993-03-22T19:54:20.64 | 10.0 | undecidable | manual | SG | 70 | 0.777 | -1.22 | 0.1 | |
--.BDI.Z. | 1993-03-22T19:54:19.19 | 10.0 | undecidable | manual | SG | 340 | 0.7326 | -0.95 | 0.2 | |
--.PGD.Z. | 1993-03-22T19:54:10.22 | 10.0 | undecidable | manual | PG | 48 | 0.7659 | 0.15 | 1.7 | |
--.CRE.Z. | 1993-03-22T19:54:10.38 | 10.0 | undecidable | manual | PG | 70 | 0.777 | -0.04 | 1.7 | |
--.BDI.Z. | 1993-03-22T19:54:09.74 | 10.0 | undecidable | manual | PG | 340 | 0.7326 | 0.32 | 1.5 | |
--.PII.Z. | 1993-03-22T19:54:04.28 | 10.0 | undecidable | manual | PG | 320 | 0.444 | -0.03 | 1.8 |