A magnitude Md 2.5 earthquake occured in region: 4 km E Londa (FI), on
and geographic coordinates (lat, lon) 43.8680, 11.6230 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 |
---|---|---|---|---|
Londa | FI | 5 | 1840 | 1840 |
San Godenzo | FI | 7 | 1167 | 3007 |
Dicomano | FI | 8 | 5515 | 8522 |
Rufina | FI | 12 | 7346 | 15868 |
Pratovecchio Stia | AR | 12 | 5845 | 21713 |
Montemignaio | AR | 14 | 566 | 22279 |
Pelago | FI | 14 | 7660 | 29939 |
Vicchio | FI | 15 | 8044 | 37983 |
Castel San Niccolò | AR | 16 | 2707 | 40690 |
Premilcuore | FC | 17 | 799 | 41489 |
Pontassieve | FI | 18 | 20603 | 62092 |
Poppi | AR | 20 | 6160 | 68252 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.5 | 1985-12-11 01:57:47 |
43.868 | 11.623 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 17839 |
Field | Value |
---|---|
Time (UTC) | 1985-12-11 01:57:47 ± 0.321 |
Latitude | 43.8680 ± 0.0340 |
Longitude | 11.6230 ± 0.0203 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 17839 |
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) | 4119.3 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 185 |
Number of associated phases, regardless of their use for origin computation | 8 |
Number of defining phases | 8 |
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) | 0.00251 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00915 |
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 | 2.5 |
Uncertainty | |
Num. used stations | 4 |
Type of magnitude | Md |
Reference to an origin | 17839 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:20:39 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.PS9.Z. | 1985-12-11T01:58:15.50 | 10.0 | undecidable | manual | SG | 259 | 0.7992 | -0.02 | 0.6 | |
--.BD1.Z. | 1985-12-11T01:58:13.50 | 10.0 | undecidable | manual | SG | 284 | 0.7548 | -0.64 | 0.3 | |
--.ARV.Z. | 1985-12-11T01:58:08.00 | 10.0 | undecidable | manual | PG | 110 | 1.0101 | 0.19 | 1.4 | |
--.PS9.Z. | 1985-12-11T01:58:05.00 | 10.0 | undecidable | manual | PG | 259 | 0.7992 | 1.22 | 0.3 | |
--.BD1.Z. | 1985-12-11T01:58:03.00 | 10.0 | undecidable | manual | PG | 284 | 0.7548 | 0.02 | 1.8 | |
--.CRE.Z. | 1985-12-11T01:58:01.00 | 10.0 | undecidable | manual | SG | 135 | 0.3441 | 0.35 | 0.7 | |
--.CRE.Z. | 1985-12-11T01:57:54.50 | 10.0 | undecidable | manual | PG | 135 | 0.3441 | -0.69 | 1 | |
--.FIR.Z. | 1985-12-11T01:57:54.00 | 10.0 | undecidable | manual | PG | 250 | 0.2775 | -0.05 | 1.9 |