A magnitude Md 2.0 earthquake occured in region: 7 km SW Marradi (FI), on
and geographic coordinates (lat, lon) 44.0390, 11.5490 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 | 7 | 3139 | 3139 |
Palazzuolo sul Senio | FI | 8 | 1154 | 4293 |
Vicchio | FI | 13 | 8044 | 12337 |
San Godenzo | FI | 14 | 1167 | 13504 |
Borgo San Lorenzo | FI | 16 | 18211 | 31715 |
Firenzuola | FI | 16 | 4726 | 36441 |
Tredozio | FC | 16 | 1212 | 37653 |
Dicomano | FI | 16 | 5515 | 43168 |
Portico e San Benedetto | FC | 19 | 756 | 43924 |
Premilcuore | FC | 20 | 799 | 44723 |
Londa | FI | 20 | 1840 | 46563 |
Castel del Rio | BO | 20 | 1246 | 47809 |
Scarperia e San Piero | FI | 20 | 12217 | 60026 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.0
ML-VAX 1.6 |
1991-09-08 05:08:20 |
44.039 | 11.549 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 149019 |
Field | Value |
---|---|
Time (UTC) | 1991-09-08 05:08:20 ± 0.823 |
Latitude | 44.0390 ± 0.0674 |
Longitude | 11.5490 ± 0.0656 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 149019 |
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) | 9142.4 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 209 |
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) | 0.5 |
Epicentral distance of station closest to the epicenter (degree) | 0.00178 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00615 |
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 | 1 |
Type of magnitude | Md |
Reference to an origin | 149019 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 19:19:04 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | |
Num. used stations | 1 |
Type of magnitude | ML |
Reference to an origin | 149019 |
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 |
---|---|---|---|---|---|---|---|---|---|---|
--.BDI.Z. | 1991-09-08T05:08:43.00 | 10.0 | undecidable | manual | SG | 272 | 0.6882 | -1.84 | 0 | |
--.CRE.Z. | 1991-09-08T05:08:40.26 | 10.0 | undecidable | manual | SG | 145 | 0.4995 | 1.01 | 0.3 | |
--.BDI.Z. | 1991-09-08T05:08:36.00 | 10.0 | undecidable | manual | PG | 272 | 0.6882 | 1.25 | 0.3 | |
--.CRE.Z. | 1991-09-08T05:08:31.19 | 10.0 | undecidable | manual | PG | 145 | 0.4995 | -0.33 | 1.4 | |
--.SFI.Z. | 1991-09-08T05:08:31.73 | 10.0 | undecidable | manual | SG | 122 | 0.2553 | 0.7 | 0.5 | |
--.PGD.Z. | 1991-09-08T05:08:29.50 | 10.0 | undecidable | manual | SG | 142 | 0.1998 | 0.01 | 0.7 | |
--.SFI.Z. | 1991-09-08T05:08:26.54 | 10.0 | negative | manual | PG | 122 | 0.2553 | -0.24 | 3.3 | |
--.PGD.Z. | 1991-09-08T05:08:25.50 | 10.0 | undecidable | manual | PG | 142 | 0.1998 | -0.38 | 1.5 |