A magnitude Md 2.4 earthquake occured in region: 7 km SE Volterra (PI), on
and geographic coordinates (lat, lon) 43.3640, 10.9290 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 | 7 | 10519 | 10519 |
Pomarance | PI | 8 | 5897 | 16416 |
Casole d'Elsa | SI | 10 | 3897 | 20313 |
Radicondoli | SI | 15 | 914 | 21227 |
Montecatini Val di Cecina | PI | 15 | 1749 | 22976 |
San Gimignano | SI | 15 | 7820 | 30796 |
Colle di Val d'Elsa | SI | 17 | 21620 | 52416 |
Castelnuovo di Val di Cecina | PI | 18 | 2231 | 54647 |
Gambassi Terme | FI | 20 | 4870 | 59517 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.4
ML-VAX 1.7 |
1993-03-21 03:05:22 |
43.364 | 10.929 | 10 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 182049 |
Field | Value |
---|---|
Time (UTC) | 1993-03-21 03:05:22 ± 0.366 |
Latitude | 43.3640 ± 0.0211 |
Longitude | 10.9290 ± 0.0158 |
Depth (km) | 10 ± 5 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 182049 |
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) | 2676.4 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 217 |
Number of associated phases, regardless of their use for origin computation | 13 |
Number of defining phases | 13 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.2 |
Epicentral distance of station closest to the epicenter (degree) | 0.00413 |
Epicentral distance of station farthest from the epicenter (degree) | 0.01158 |
Number of stations at which the event was observed | 7 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 2.4 |
Uncertainty | |
Num. used stations | 4 |
Type of magnitude | Md |
Reference to an origin | 182049 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 19:50:51 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 182049 |
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 |
---|---|---|---|---|---|---|---|---|---|---|
--.ZC9.Z. | 1993-03-21T03:05:55.40 | 10.0 | undecidable | manual | SG | 1 | 0.9768 | -0.29 | 0.4 | |
--.SFI.Z. | 1993-03-21T03:05:52.00 | 10.0 | undecidable | manual | SG | 50 | 0.8547 | 0.54 | 0.1 | |
--.PGD.Z. | 1993-03-21T03:05:49.00 | 10.0 | undecidable | manual | SG | 47 | 0.7659 | 0.38 | 0.3 | |
--.CRE.Z. | 1993-03-21T03:05:48.00 | 10.0 | undecidable | manual | SG | 70 | 0.777 | -1.1 | 0 | |
--.BDI.Z. | 1993-03-21T03:05:47.83 | 10.0 | undecidable | manual | SG | 340 | 0.7326 | 0.18 | 0.6 | |
--.ASS.Z. | 1993-03-21T03:05:46.00 | 10.0 | undecidable | manual | PN | 102 | 1.2876 | 0.19 | 1 | |
--.ZC9.Z. | 1993-03-21T03:05:41.81 | 10.0 | undecidable | manual | PG | 1 | 0.9768 | 0.34 | 0.8 | |
--.SFI.Z. | 1993-03-21T03:05:39.60 | 10.0 | undecidable | manual | PG | 50 | 0.8547 | 0.03 | 1.6 | |
--.PII.Z. | 1993-03-21T03:05:38.64 | 10.0 | undecidable | manual | SG | 320 | 0.4551 | -0.16 | 0.6 | |
--.PGD.Z. | 1993-03-21T03:05:37.50 | 10.0 | undecidable | manual | PG | 47 | 0.7659 | 0.1 | 1.6 | |
--.CRE.Z. | 1993-03-21T03:05:37.57 | 10.0 | positive | manual | PG | 70 | 0.777 | -0.1 | 3.1 | |
--.BDI.Z. | 1993-03-21T03:05:36.92 | 10.0 | undecidable | manual | PG | 340 | 0.7326 | 0.08 | 1.6 | |
--.PII.Z. | 1993-03-21T03:05:31.54 | 10.0 | undecidable | manual | PG | 320 | 0.4551 | -0.18 | 1.4 |