A magnitude Md 1.2 earthquake occured in region: 1 km SW Marradi (FI), on
and geographic coordinates (lat, lon) 44.0710, 11.6070 at 10 km depth.
The earthquake was located by: Sala Sismica INGV-Roma.
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 | 1 | 3139 | 3139 |
Palazzuolo sul Senio | FI | 7 | 1154 | 4293 |
Tredozio | FC | 11 | 1212 | 5505 |
Portico e San Benedetto | FC | 15 | 756 | 6261 |
San Godenzo | FI | 16 | 1167 | 7428 |
Casola Valsenio | RA | 17 | 2617 | 10045 |
Premilcuore | FC | 17 | 799 | 10844 |
Modigliana | FC | 18 | 4560 | 15404 |
Castel del Rio | BO | 18 | 1246 | 16650 |
Vicchio | FI | 19 | 8044 | 24694 |
Rocca San Casciano | FC | 19 | 1910 | 26604 |
Firenzuola | FI | 19 | 4726 | 31330 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
Md 1.2 | 2023-10-18 08:42:41 |
44.0708 | 11.6068 | 10 | 2023-10-18 08:52:00 |
Sala Sismica INGV-Roma | 122171941 |
Field | Value |
---|---|
Time (UTC) | 2023-10-18 08:42:41 ± 0.05 |
Latitude | 44.0708 ± 0.0027 |
Longitude | 11.6068 ± 0.0025 |
Depth (km) | 10 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 122171941 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 260 |
Semi-minor axis of confidence ellipse (meter) | 223 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 4 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 260.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 131 |
Number of associated phases, regardless of their use for origin computation | 13 |
Number of defining phases | 12 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.09 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.24282 |
Number of stations at which the event was observed | 7 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.3 |
Num. used stations | 6 |
Type of magnitude | Md |
Reference to an origin | 122171941 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-10-18 08:52:00 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.BDI.HHZ. | 2023-10-18T08:43:07.58 | 3.0 | undecidable | manual | P | 0 | ||||
IV.RUFI.EHZ. | 2023-10-18T08:42:51.41 | 0.6 | undecidable | manual | S | 197 | 26.9508 | 50 | -0.11 | 48 |
IV.SFI.EHZ. | 2023-10-18T08:42:51.52 | 0.6 | undecidable | manual | S | 134 | 26.5512 | 50 | 0.1 | 48 |
IV.VISG.HHZ. | 2023-10-18T08:42:49.15 | 0.6 | undecidable | manual | S | 314 | 18.9699 | 118 | 0.06 | 49 |
IV.SEI.HHZ. | 2023-10-18T08:42:49.23 | 0.6 | undecidable | manual | S | 265 | 19.869 | 117 | -0.13 | 48 |
IV.VMGN.HHZ. | 2023-10-18T08:42:47.69 | 0.6 | undecidable | manual | S | 205 | 14.1747 | 125 | 0.02 | 49 |
IV.RUFI.EHZ. | 2023-10-18T08:42:47.24 | 0.6 | positive | manual | P | 197 | 26.9508 | 50 | -0.1 | 48 |
IV.SFI.EHZ. | 2023-10-18T08:42:47.27 | 1.0 | positive | manual | P | 134 | 26.5512 | 50 | -0.01 | 24 |
IV.SEI.HHZ. | 2023-10-18T08:42:46.04 | 0.6 | negative | manual | P | 265 | 19.869 | 117 | -0.06 | 49 |
IV.VISG.HHZ. | 2023-10-18T08:42:45.97 | 0.1 | positive | manual | P | 314 | 18.9699 | 118 | 0.04 | 98 |
IV.LMD.HHZ. | 2023-10-18T08:42:45.90 | 0.6 | undecidable | manual | S | 85 | 7.9809 | 141 | -0.19 | 48 |
IV.VMGN.HHZ. | 2023-10-18T08:42:45.26 | 0.1 | positive | manual | P | 205 | 14.1747 | 125 | 0.14 | 97 |
IV.LMD.HHZ. | 2023-10-18T08:42:44.23 | 0.1 | positive | manual | P | 85 | 7.9809 | 141 | 0.02 | 100 |