A magnitude Md 2.2 earthquake occured in region: 8 km NE Poppi (AR), on
and geographic coordinates (lat, lon) 43.7700, 11.8370 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 |
---|---|---|---|---|
Poppi | AR | 8 | 6160 | 6160 |
Bibbiena | AR | 8 | 12241 | 18401 |
Pratovecchio Stia | AR | 10 | 5845 | 24246 |
Castel San Niccolò | AR | 11 | 2707 | 26953 |
Chiusi della Verna | AR | 11 | 2023 | 28976 |
Ortignano Raggiolo | AR | 12 | 878 | 29854 |
Chitignano | AR | 13 | 899 | 30753 |
Castel Focognano | AR | 13 | 3149 | 33902 |
Verghereto | FC | 14 | 1907 | 35809 |
Bagno di Romagna | FC | 15 | 6026 | 41835 |
Montemignaio | AR | 18 | 566 | 42401 |
Caprese Michelangelo | AR | 18 | 1426 | 43827 |
Talla | AR | 19 | 1062 | 44889 |
Pieve Santo Stefano | AR | 20 | 3183 | 48072 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.2 | 1987-03-18 17:54:35 |
43.77 | 11.837 | 10 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 43149 |
Field | Value |
---|---|
Time (UTC) | 1987-03-18 17:54:35 ± 0.234 |
Latitude | 43.7700 ± 0.0184 |
Longitude | 11.8370 ± 0.0252 |
Depth (km) | 10 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 43149 |
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) | 2874.4 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 116 |
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) | 0.00089 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00850 |
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 | 43149 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:42:45 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.ARV.Z. | 1987-03-18T17:55:03.50 | 10.0 | undecidable | manual | SG | 108 | 0.8325 | -0.78 | 0.3 | |
--.PS9.Z. | 1987-03-18T17:54:54.00 | 10.0 | undecidable | manual | PG | 267 | 0.9435 | 0.09 | 1.5 | |
--.ASS.Z. | 1987-03-18T17:54:53.50 | 10.0 | undecidable | manual | PG | 139 | 0.9213 | 0.1 | 1.6 | |
--.ARV.Z. | 1987-03-18T17:54:52.50 | 10.0 | undecidable | manual | PG | 108 | 0.8325 | 0.52 | 1.1 | |
--.CRE.Z. | 1987-03-18T17:54:43.50 | 10.0 | undecidable | manual | SG | 151 | 0.1665 | 0.94 | 0.3 | |
--.MF9.Z. | 1987-03-18T17:54:41.00 | 10.0 | undecidable | manual | SG | 11 | 0.0999 | 0.52 | 0.6 | |
--.MF9.Z. | 1987-03-18T17:54:38.00 | 10.0 | undecidable | manual | PG | 11 | 0.0999 | -0.24 | 2 | |
--.CRE.Z. | 1987-03-18T17:54:38.50 | 10.0 | undecidable | manual | PG | 151 | 0.1665 | -0.94 | 0.6 |