A magnitude Md 2.4 earthquake occured in region: 7 km NE Firenzuola (FI), on
and geographic coordinates (lat, lon) 44.18, 11.41 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 |
---|---|---|---|---|
Firenzuola | FI | 7 | 4726 | 4726 |
Castel del Rio | BO | 9 | 1246 | 5972 |
Monghidoro | BO | 9 | 3749 | 9721 |
Loiano | BO | 13 | 4294 | 14015 |
Palazzuolo sul Senio | FI | 13 | 1154 | 15169 |
San Benedetto Val di Sambro | BO | 15 | 4315 | 19484 |
Fontanelice | BO | 15 | 1943 | 21427 |
Monzuno | BO | 16 | 6328 | 27755 |
Monterenzio | BO | 17 | 6035 | 33790 |
Casola Valsenio | RA | 18 | 2617 | 36407 |
Borgo Tossignano | BO | 18 | 3288 | 39695 |
Marradi | FI | 20 | 3139 | 42834 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.4 | 1986-10-04 11:41:11 |
44.18 | 11.41 | 5 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 35269 |
Field | Value |
---|---|
Time (UTC) | 1986-10-04 11:41:11 ± 0.546 |
Latitude | 44.18 ± 0.04 |
Longitude | 11.41 ± 0.02 |
Depth (km) | 5 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 35269 |
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) | 4410.7 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 241 |
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) | 0.5 |
Epicentral distance of station closest to the epicenter (degree) | 0.00534 |
Epicentral distance of station farthest from the epicenter (degree) | 0.01287 |
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 | 2.4 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | Md |
Reference to an origin | 35269 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:35:40 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.PS9.Z. | 1986-10-04T11:41:40.00 | 10.0 | undecidable | manual | SG | 234 | 0.007 | -0.03 | 0.9 | |
--.ASS.Z. | 1986-10-04T11:41:39.00 | 10.0 | undecidable | manual | PN | 140 | 0.0129 | 0.53 | 1.1 | |
--.CRE.Z. | 1986-10-04T11:41:36.70 | 10.0 | undecidable | manual | SG | 144 | 0.0061 | 0.01 | 0.9 | |
--.BDI.Z. | 1986-10-04T11:41:33.00 | 10.0 | undecidable | manual | SG | 258 | 0.0053 | -0.94 | 0.2 | |
--.PS9.Z. | 1986-10-04T11:41:29.00 | 10.0 | undecidable | manual | PG | 234 | 0.007 | 0.83 | 0.9 | |
--.CRE.Z. | 1986-10-04T11:41:25.50 | 10.0 | undecidable | manual | PG | 144 | 0.0061 | -0.74 | 1 | |
--.BDI.Z. | 1986-10-04T11:41:24.50 | 10.0 | undecidable | manual | PG | 258 | 0.0053 | -0.15 | 2.1 |