A magnitude Md 2.1 earthquake occured in region: 5 km N Sansepolcro (AR), on
and geographic coordinates (lat, lon) 43.6200, 12.1370 at 5 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 |
---|---|---|---|---|
Sansepolcro | AR | 6 | 15884 | 15884 |
San Giustino | PG | 9 | 11297 | 27181 |
Pieve Santo Stefano | AR | 9 | 3183 | 30364 |
Badia Tedalda | AR | 11 | 1087 | 31451 |
Anghiari | AR | 11 | 5638 | 37089 |
Caprese Michelangelo | AR | 12 | 1426 | 38515 |
Citerna | PG | 14 | 3531 | 42046 |
Borgo Pace | PU | 14 | 606 | 42652 |
Monterchi | AR | 15 | 1757 | 44409 |
Sestino | AR | 16 | 1355 | 45764 |
Mercatello sul Metauro | PU | 17 | 1378 | 47142 |
Chiusi della Verna | AR | 19 | 2023 | 49165 |
Casteldelci | RN | 19 | 407 | 49572 |
CittĂ di Castello | PG | 20 | 39913 | 89485 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.1 | 1991-09-16 03:42:29 |
43.62 | 12.137 | 5 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 149349 |
Field | Value |
---|---|
Time (UTC) | 1991-09-16 03:42:29 ± 0.254 |
Latitude | 43.6200 ± 0.0194 |
Longitude | 12.1370 ± 0.0174 |
Depth (km) | 5 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 149349 |
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) | 2571.8 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 137 |
Number of associated phases, regardless of their use for origin computation | 7 |
Number of defining phases | 7 |
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) | 0.00113 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00599 |
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 | 2.1 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | Md |
Reference to an origin | 149349 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 19:19:24 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.ARV.Z. | 1991-09-16T03:42:50.53 | 10.0 | undecidable | manual | SG | 101 | 0.5883 | -0.57 | 0.2 | |
--.ASS.Z. | 1991-09-16T03:42:44.25 | 10.0 | undecidable | manual | PG | 145 | 0.666 | 1.08 | 0.2 | |
--.SFI.Z. | 1991-09-16T03:42:43.10 | 10.0 | undecidable | manual | SG | 323 | 0.3552 | 0.35 | 0.4 | |
--.ARV.Z. | 1991-09-16T03:42:41.40 | 10.0 | undecidable | manual | PG | 101 | 0.5883 | -0.39 | 0.9 | |
--.SFI.Z. | 1991-09-16T03:42:37.90 | 10.0 | undecidable | manual | PG | 323 | 0.3552 | 0.13 | 1.6 | |
--.CRE.Z. | 1991-09-16T03:42:34.14 | 10.0 | undecidable | manual | SG | 269 | 0.1221 | -0.38 | 0.5 | |
--.CRE.Z. | 1991-09-16T03:42:32.90 | 10.0 | positive | manual | PG | 269 | 0.1221 | -0.13 | 3.2 |