A magnitude Md 2.0 earthquake occured in region: 4 km N Tredozio (FC), on
and geographic coordinates (lat, lon) 44.1170, 11.7360 at 19 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 |
---|---|---|---|---|
Tredozio | FC | 4 | 1212 | 1212 |
Modigliana | FC | 6 | 4560 | 5772 |
Rocca San Casciano | FC | 11 | 1910 | 7682 |
Portico e San Benedetto | FC | 11 | 756 | 8438 |
Marradi | FI | 11 | 3139 | 11577 |
Brisighella | RA | 12 | 7639 | 19216 |
Dovadola | FC | 12 | 1653 | 20869 |
Casola Valsenio | RA | 15 | 2617 | 23486 |
Palazzuolo sul Senio | FI | 15 | 1154 | 24640 |
Premilcuore | FC | 16 | 799 | 25439 |
Riolo Terme | RA | 18 | 5720 | 31159 |
Castrocaro Terme e Terra del Sole | FC | 18 | 6426 | 37585 |
Galeata | FC | 19 | 2516 | 40101 |
Predappio | FC | 20 | 6346 | 46447 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.0
ML-VAX 1.8 |
1987-10-22 23:55:05 |
44.117 | 11.736 | 19 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 57489 |
Field | Value |
---|---|
Time (UTC) | 1987-10-22 23:55:05 ± 0.608 |
Latitude | 44.1170 ± 0.0418 |
Longitude | 11.7360 ± 0.0636 |
Depth (km) | 19 ± 3 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 57489 |
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) | 6883.8 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 302 |
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) | 0.00186 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00955 |
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 | 2.0 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | Md |
Reference to an origin | 57489 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:55:07 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | |
Num. used stations | 1 |
Type of magnitude | ML |
Reference to an origin | 57489 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2015-04-28 13:07:13 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.ARV.Z. | 1987-10-22T23:55:25.40 | 10.0 | undecidable | manual | PN | 124 | 1.0656 | 0.34 | 0.9 | |
--.CRE.Z. | 1987-10-22T23:55:23.80 | 10.0 | undecidable | manual | SG | 162 | 0.5106 | -0.5 | 0.4 | |
--.PGD.Z. | 1987-10-22T23:55:16.60 | 10.0 | undecidable | manual | SG | 182 | 0.2331 | 0.73 | 0.2 | |
--.CRE.Z. | 1987-10-22T23:55:15.68 | 10.0 | undecidable | manual | PG | 162 | 0.5106 | -0.63 | 0.7 | |
--.SS9.Z. | 1987-10-22T23:55:15.46 | 10.0 | undecidable | manual | SG | 156 | 0.2109 | 0.38 | 0.6 | |
--.PGD.Z. | 1987-10-22T23:55:11.20 | 10.0 | undecidable | manual | PG | 182 | 0.2331 | -0.24 | 1.9 | |
--.SS9.Z. | 1987-10-22T23:55:11.10 | 10.0 | undecidable | manual | PG | 156 | 0.2109 | 0.02 | 2.2 |