A magnitude Md 2.4 earthquake occured in region: 9 km SW Marradi (FI), on
and geographic coordinates (lat, lon) 44.0130, 11.5450 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 |
---|---|---|---|---|
Marradi | FI | 9 | 3139 | 3139 |
Vicchio | FI | 11 | 8044 | 11183 |
Palazzuolo sul Senio | FI | 11 | 1154 | 12337 |
San Godenzo | FI | 11 | 1167 | 13504 |
Dicomano | FI | 14 | 5515 | 19019 |
Borgo San Lorenzo | FI | 14 | 18211 | 37230 |
Londa | FI | 17 | 1840 | 39070 |
Tredozio | FC | 18 | 1212 | 40282 |
Firenzuola | FI | 18 | 4726 | 45008 |
Scarperia e San Piero | FI | 19 | 12217 | 57225 |
Premilcuore | FC | 19 | 799 | 58024 |
Portico e San Benedetto | FC | 19 | 756 | 58780 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.4 | 1987-09-03 03:45:43 |
44.013 | 11.545 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 54679 |
Field | Value |
---|---|
Time (UTC) | 1987-09-03 03:45:43 ± 0.786 |
Latitude | 44.0130 ± 0.0859 |
Longitude | 11.5450 ± 0.0596 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 54679 |
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) | 10675.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 202 |
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) | 0.00162 |
Epicentral distance of station farthest from the epicenter (degree) | 0.01020 |
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 | 2 |
Type of magnitude | Md |
Reference to an origin | 54679 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:52:41 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.BDI.Z. | 1987-09-03T03:46:07.00 | 10.0 | undecidable | manual | SG | 274 | 0.6771 | -0.02 | 0.8 | |
--.ARV.Z. | 1987-09-03T03:46:05.50 | 10.0 | undecidable | manual | PN | 116 | 1.1322 | 0.7 | 0.9 | |
--.CRE.Z. | 1987-09-03T03:46:02.50 | 10.0 | undecidable | manual | SG | 143 | 0.4884 | 1.65 | 0.1 | |
--.BDI.Z. | 1987-09-03T03:45:57.00 | 10.0 | undecidable | manual | PG | 274 | 0.6771 | 0.05 | 1.9 | |
--.CRE.Z. | 1987-09-03T03:45:53.50 | 10.0 | undecidable | manual | PG | 143 | 0.4884 | 0.12 | 2.1 | |
--.PGD.Z. | 1987-09-03T03:45:50.50 | 10.0 | undecidable | manual | SG | 137 | 0.1776 | -0.63 | 0.6 | |
--.PGD.Z. | 1987-09-03T03:45:46.50 | 10.0 | undecidable | manual | PG | 137 | 0.1776 | -1.27 | 0.6 |