A magnitude Md 2.2 earthquake occured in region: 5 km S Palazzuolo sul Senio (FI), on
and geographic coordinates (lat, lon) 44.0700, 11.5440 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 |
---|---|---|---|---|
Palazzuolo sul Senio | FI | 5 | 1154 | 1154 |
Marradi | FI | 6 | 3139 | 4293 |
Firenzuola | FI | 14 | 4726 | 9019 |
Tredozio | FC | 16 | 1212 | 10231 |
Vicchio | FI | 16 | 8044 | 18275 |
Castel del Rio | BO | 16 | 1246 | 19521 |
San Godenzo | FI | 17 | 1167 | 20688 |
Borgo San Lorenzo | FI | 18 | 18211 | 38899 |
Casola Valsenio | RA | 18 | 2617 | 41516 |
Portico e San Benedetto | FC | 20 | 756 | 42272 |
Dicomano | FI | 20 | 5515 | 47787 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.2
ML-VAX 1.5 |
1987-08-12 20:40:37 |
44.07 | 11.544 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 53789 |
Field | Value |
---|---|
Time (UTC) | 1987-08-12 20:40:37 ± 0.426 |
Latitude | 44.0700 ± 0.0351 |
Longitude | 11.5440 ± 0.0229 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 53789 |
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) | 4311.6 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 214 |
Number of associated phases, regardless of their use for origin computation | 10 |
Number of defining phases | 10 |
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) | 0.00202 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00729 |
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 | 2.2 |
Uncertainty | |
Num. used stations | 5 |
Type of magnitude | Md |
Reference to an origin | 53789 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:51:52 |
Field | Value |
---|---|
Value | 1.5 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 53789 |
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 |
---|---|---|---|---|---|---|---|---|---|---|
--.PS9.Z. | 1987-08-12T20:41:05.14 | 10.0 | undecidable | manual | SG | 245 | 0.8103 | -0.73 | 0.3 | |
--.BDI.Z. | 1987-08-12T20:41:00.91 | 10.0 | undecidable | manual | SG | 269 | 0.6771 | -0.7 | 0.4 | |
--.CRE.Z. | 1987-08-12T20:40:57.76 | 10.0 | undecidable | manual | SG | 146 | 0.5328 | 0.74 | 0.4 | |
--.PS9.Z. | 1987-08-12T20:40:54.84 | 10.0 | undecidable | manual | PG | 245 | 0.8103 | 0.81 | 0.7 | |
--.BDI.Z. | 1987-08-12T20:40:51.86 | 10.0 | undecidable | manual | PG | 269 | 0.6771 | 0.3 | 1.8 | |
--.SS9.Z. | 1987-08-12T20:40:49.00 | 10.0 | undecidable | manual | SG | 124 | 0.2553 | 0.66 | 0.5 | |
--.CRE.Z. | 1987-08-12T20:40:48.13 | 10.0 | undecidable | manual | PG | 146 | 0.5328 | -0.78 | 0.9 | |
--.PGD.Z. | 1987-08-12T20:40:47.58 | 10.0 | undecidable | manual | SG | 146 | 0.222 | 0.33 | 0.8 | |
--.SS9.Z. | 1987-08-12T20:40:43.78 | 10.0 | undecidable | manual | PG | 124 | 0.2553 | -0.13 | 2.3 | |
--.PGD.Z. | 1987-08-12T20:40:42.89 | 10.0 | undecidable | manual | PG | 146 | 0.222 | -0.38 | 1.9 |