A magnitude Md 2.1 earthquake occured in region: 4 km NE Forlimpopoli (FC), on
and geographic coordinates (lat, lon) 44.2180, 12.1510 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 |
---|---|---|---|---|
Forlimpopoli | FC | 4 | 13290 | 13290 |
Bertinoro | FC | 8 | 11059 | 24349 |
Forlì | FC | 9 | 117913 | 142262 |
Cesena | FC | 12 | 96758 | 239020 |
Meldola | FC | 12 | 9970 | 248990 |
Cervia | RA | 17 | 28940 | 277930 |
Castrocaro Terme e Terra del Sole | FC | 17 | 6426 | 284356 |
Gambettola | FC | 19 | 10660 | 295016 |
Predappio | FC | 19 | 6346 | 301362 |
Montiano | FC | 19 | 1716 | 303078 |
Russi | RA | 20 | 12247 | 315325 |
Cesenatico | FC | 20 | 25796 | 341121 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.1 | 1987-08-02 02:33:23 |
44.218 | 12.151 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 53189 |
Field | Value |
---|---|
Time (UTC) | 1987-08-02 02:33:23 ± 1.035 |
Latitude | 44.2180 ± 0.0582 |
Longitude | 12.1510 ± 0.0362 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 53189 |
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) | 7084.6 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 279 |
Number of associated phases, regardless of their use for origin computation | 6 |
Number of defining phases | 6 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.5 |
Epicentral distance of station closest to the epicenter (degree) | 0.00413 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00826 |
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 | 2.1 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | Md |
Reference to an origin | 53189 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:51:18 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.ARV.Z. | 1987-08-02T02:33:56.25 | 10.0 | undecidable | manual | SG | 140 | 0.9213 | 1.21 | 0.1 | |
--.CRE.Z. | 1987-08-02T02:33:44.58 | 10.0 | undecidable | manual | SG | 193 | 0.6105 | -0.72 | 0.4 | |
--.ARV.Z. | 1987-08-02T02:33:41.40 | 10.0 | undecidable | manual | PG | 140 | 0.9213 | -0.37 | 1.5 | |
--.PGD.Z. | 1987-08-02T02:33:40.81 | 10.0 | undecidable | manual | SG | 221 | 0.4551 | 0.46 | 0.7 | |
--.CRE.Z. | 1987-08-02T02:33:35.68 | 10.0 | undecidable | manual | PG | 193 | 0.6105 | -0.47 | 1.6 | |
--.PGD.Z. | 1987-08-02T02:33:33.75 | 10.0 | undecidable | manual | PG | 221 | 0.4551 | 0.46 | 1.7 |