A magnitude Md 2.2 earthquake occured in region: 3 km NW Castelnuovo di Val di Cecina (PI), on
and geographic coordinates (lat, lon) 43.2240, 10.8810 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 |
---|---|---|---|---|
Castelnuovo di Val di Cecina | PI | 3 | 2231 | 2231 |
Pomarance | PI | 9 | 5897 | 8128 |
Monterotondo Marittimo | GR | 9 | 1371 | 9499 |
Radicondoli | SI | 14 | 914 | 10413 |
Monteverdi Marittimo | PI | 14 | 758 | 11171 |
Montieri | GR | 15 | 1204 | 12375 |
Chiusdino | SI | 19 | 1903 | 14278 |
Casole d'Elsa | SI | 19 | 3897 | 18175 |
Massa Marittima | GR | 19 | 8375 | 26550 |
Volterra | PI | 20 | 10519 | 37069 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.2
ML-VAX 2.0 |
1991-08-18 13:17:47 |
43.224 | 10.881 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 147659 |
Field | Value |
---|---|
Time (UTC) | 1991-08-18 13:17:47 ± 0.305 |
Latitude | 43.2240 ± 0.0170 |
Longitude | 10.8810 ± 0.0423 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 147659 |
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) | 3912.2 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 166 |
Number of associated phases, regardless of their use for origin computation | 10 |
Number of defining phases | 10 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.5 |
Epicentral distance of station closest to the epicenter (degree) | 0.00502 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00874 |
Number of stations at which the event was observed | 5 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 2.2 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | Md |
Reference to an origin | 147659 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 19:17:49 |
Field | Value |
---|---|
Value | 2.0 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 147659 |
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 |
---|---|---|---|---|---|---|---|---|---|---|
--.SFI.Z. | 1991-08-18T13:18:19.99 | 10.0 | undecidable | manual | SG | 45 | 0.9657 | -0.97 | 0.3 | |
--.BDI.Z. | 1991-08-18T13:18:16.21 | 10.0 | undecidable | manual | SG | 346 | 0.8547 | -1.1 | 0.2 | |
--.CRE.Z. | 1991-08-18T13:18:16.70 | 10.0 | undecidable | manual | SG | 62 | 0.8658 | -1.54 | 0.1 | |
--.MAO.Z. | 1991-08-18T13:18:15.22 | 10.0 | undecidable | manual | SG | 165 | 0.8214 | -1.11 | 0.2 | |
--.SFI.Z. | 1991-08-18T13:18:08.70 | 10.0 | undecidable | manual | PG | 45 | 0.9657 | 1.16 | 0.5 | |
--.PII.Z. | 1991-08-18T13:18:06.84 | 10.0 | undecidable | manual | SG | 332 | 0.555 | -0.77 | 0.4 | |
--.CRE.Z. | 1991-08-18T13:18:05.49 | 10.0 | undecidable | manual | PG | 62 | 0.8658 | 0.51 | 1.4 | |
--.BDI.Z. | 1991-08-18T13:18:05.28 | 10.0 | undecidable | manual | PG | 346 | 0.8547 | 0.47 | 1.4 | |
--.MAO.Z. | 1991-08-18T13:18:04.27 | 10.0 | positive | manual | PG | 165 | 0.8214 | 0.03 | 3.6 | |
--.PII.Z. | 1991-08-18T13:17:59.19 | 10.0 | undecidable | manual | PG | 332 | 0.555 | -0.01 | 1.8 |