A magnitude Md 2.3 earthquake occured in region: 7 km E Civitella in Val di Chiana (AR), on
and geographic coordinates (lat, lon) 43.3970, 11.8520 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 |
---|---|---|---|---|
Civitella in Val di Chiana | AR | 7 | 9121 | 9121 |
Arezzo | AR | 8 | 99543 | 108664 |
Castiglion Fiorentino | AR | 8 | 13244 | 121908 |
Marciano della Chiana | AR | 11 | 3466 | 125374 |
Monte San Savino | AR | 12 | 8743 | 134117 |
Pergine Valdarno | AR | 16 | 3162 | 137279 |
Lucignano | AR | 16 | 3581 | 140860 |
Foiano della Chiana | AR | 16 | 9516 | 150376 |
Castiglion Fibocchi | AR | 16 | 2167 | 152543 |
Laterina | AR | 17 | 3517 | 156060 |
Cortona | AR | 17 | 22450 | 178510 |
Capolona | AR | 19 | 5438 | 183948 |
Subbiano | AR | 20 | 6331 | 190279 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.3 | 1987-01-16 18:46:22 |
43.397 | 11.852 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 39379 |
Field | Value |
---|---|
Time (UTC) | 1987-01-16 18:46:22 ± 0.489 |
Latitude | 43.3970 ± 0.0376 |
Longitude | 11.8520 ± 0.0395 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 39379 |
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) | 5256.2 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 191 |
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) | 0.9 |
Epicentral distance of station closest to the epicenter (degree) | 0.00429 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00712 |
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 | 2.3 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | Md |
Reference to an origin | 39379 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:39:27 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.ARV.Z. | 1987-01-16T18:46:50.50 | 10.0 | undecidable | manual | SG | 82 | 0.7881 | 0.64 | 0.7 | |
--.ASS.Z. | 1987-01-16T18:46:46.50 | 10.0 | undecidable | manual | SG | 119 | 0.666 | 0.71 | 0.7 | |
--.FIR.N. | 1987-01-16T18:46:42.00 | 10.0 | undecidable | manual | SG | 311 | 0.5661 | -0.6 | 0.8 | |
--.MF9.Z. | 1987-01-16T18:46:41.00 | 10.0 | undecidable | manual | SG | 1 | 0.4773 | 1.45 | 0.3 | |
--.ARV.Z. | 1987-01-16T18:46:37.00 | 10.0 | undecidable | manual | PG | 82 | 0.7881 | -1.21 | 1 | |
--.FIR.Z. | 1987-01-16T18:46:35.00 | 10.0 | undecidable | manual | PG | 311 | 0.5661 | 0.98 | 1.4 | |
--.ASS.Z. | 1987-01-16T18:46:35.50 | 10.0 | undecidable | manual | PG | 119 | 0.666 | -0.36 | 2.1 | |
--.MF9.Z. | 1987-01-16T18:46:31.00 | 10.0 | undecidable | manual | PG | 1 | 0.4773 | -1.26 | 1 |