A magnitude Md 2.1 earthquake occured in region: 4 km W Forlì (FC), on
and geographic coordinates (lat, lon) 44.2160, 11.9940 at 6 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 |
---|---|---|---|---|
Forlì | FC | 4 | 117913 | 117913 |
Castrocaro Terme e Terra del Sole | FC | 6 | 6426 | 124339 |
Forlimpopoli | FC | 11 | 13290 | 137629 |
Meldola | FC | 11 | 9970 | 147599 |
Faenza | RA | 12 | 58541 | 206140 |
Predappio | FC | 13 | 6346 | 212486 |
Dovadola | FC | 13 | 1653 | 214139 |
Bertinoro | FC | 14 | 11059 | 225198 |
Modigliana | FC | 17 | 4560 | 229758 |
Russi | RA | 18 | 12247 | 242005 |
Brisighella | RA | 18 | 7639 | 249644 |
Cotignola | RA | 19 | 7474 | 257118 |
Castel Bolognese | RA | 19 | 9554 | 266672 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.1 | 2000-04-21 20:48:00 |
44.216 | 11.994 | 6 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 387609 |
Field | Value |
---|---|
Time (UTC) | 2000-04-21 20:48:00 ± 0.287 |
Latitude | 44.2160 ± 0.0101 |
Longitude | 11.9940 ± 0.0212 |
Depth (km) | 6 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 387609 |
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) | 2026.1 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 281 |
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) | 0.2 |
Epicentral distance of station closest to the epicenter (degree) | 0.00291 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00907 |
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 | 2.1 |
Uncertainty | |
Num. used stations | 4 |
Type of magnitude | Md |
Reference to an origin | 387609 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 23:04:21 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.CRE.Z. | 2000-04-21T20:48:22.50 | 10.0 | undecidable | manual | SG | 182 | 0.5883 | 0.16 | 0.4 | |
--.BDI.Z. | 2000-04-21T20:48:21.00 | 10.0 | undecidable | manual | PG | 261 | 1.0101 | 0.13 | 0.9 | |
--.CSNT.Z. | 2000-04-21T20:48:19.10 | 10.0 | undecidable | manual | PG | 214 | 0.888 | 0.26 | 0.6 | |
--.PGD.Z. | 2000-04-21T20:48:15.74 | 10.0 | undecidable | manual | SG | 209 | 0.3885 | -0.05 | 0.6 | |
--.CRE.Z. | 2000-04-21T20:48:13.22 | 10.0 | undecidable | manual | PG | 182 | 0.5883 | 0.08 | 1.2 | |
--.SFI.Z. | 2000-04-21T20:48:13.50 | 10.0 | undecidable | manual | SG | 198 | 0.3219 | 0.09 | 0.6 | |
--.PGD.Z. | 2000-04-21T20:48:08.87 | 10.0 | negative | manual | PG | 209 | 0.3885 | -0.49 | 0.8 | |
--.SFI.Z. | 2000-04-21T20:48:07.98 | 10.0 | negative | manual | PG | 198 | 0.3219 | -0.02 | 3 |