A magnitude Md 2.2 earthquake occured in region: 4 km SE Pergine Valdarno (AR), on
and geographic coordinates (lat, lon) 43.4350, 11.7070 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 |
---|---|---|---|---|
Pergine Valdarno | AR | 4 | 3162 | 3162 |
Civitella in Val di Chiana | AR | 6 | 9121 | 12283 |
Laterina | AR | 8 | 3517 | 15800 |
Bucine | AR | 9 | 10164 | 25964 |
Castiglion Fibocchi | AR | 11 | 2167 | 28131 |
Monte San Savino | AR | 12 | 8743 | 36874 |
Arezzo | AR | 15 | 99543 | 136417 |
Montevarchi | AR | 15 | 24378 | 160795 |
Marciano della Chiana | AR | 16 | 3466 | 164261 |
Terranuova Bracciolini | AR | 16 | 12346 | 176607 |
Lucignano | AR | 18 | 3581 | 180188 |
Rapolano Terme | SI | 18 | 5249 | 185437 |
Loro Ciuffenna | AR | 19 | 5819 | 191256 |
Capolona | AR | 19 | 5438 | 196694 |
Castelnuovo Berardenga | SI | 19 | 9097 | 205791 |
Talla | AR | 20 | 1062 | 206853 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.2 | 1987-07-06 20:38:36 |
43.435 | 11.707 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 51109 |
Field | Value |
---|---|
Time (UTC) | 1987-07-06 20:38:36 ± 0.574 |
Latitude | 43.4350 ± 0.0238 |
Longitude | 11.7070 ± 0.0511 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 51109 |
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) | 4899.6 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 243 |
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) | 0.3 |
Epicentral distance of station closest to the epicenter (degree) | 0.00389 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00809 |
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 | 2.2 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | Md |
Reference to an origin | 51109 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:49:36 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.ARV.Z. | 1987-07-06T20:39:06.38 | 10.0 | undecidable | manual | SG | 85 | 0.8991 | -0.52 | 0.3 | |
--.ARV.Z. | 1987-07-06T20:38:54.77 | 10.0 | undecidable | manual | PG | 85 | 0.8991 | 0.88 | 0.5 | |
--.PGD.Z. | 1987-07-06T20:38:52.19 | 10.0 | undecidable | manual | SG | 1 | 0.4329 | 0.05 | 0.8 | |
--.ASS.Z. | 1987-07-06T20:38:51.58 | 10.0 | undecidable | manual | PG | 118 | 0.777 | -0.15 | 1.5 | |
--.PGD.Z. | 1987-07-06T20:38:45.28 | 10.0 | undecidable | manual | PG | 1 | 0.4329 | -0.09 | 1.9 |