A magnitude ML 0.8 earthquake occured in region: 2 km SW Marradi (FI), on
and geographic coordinates (lat, lon) 44.0640, 11.6060 at 9 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 | 2 | 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 | 15 | 1167 | 7428 |
Premilcuore | FC | 17 | 799 | 8227 |
Casola Valsenio | RA | 18 | 2617 | 10844 |
Modigliana | FC | 18 | 4560 | 15404 |
Vicchio | FI | 18 | 8044 | 23448 |
Castel del Rio | BO | 19 | 1246 | 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 |
ML 0.8 | 2023-10-29 08:20:00 |
44.0638 | 11.6058 | 9 | 2023-10-29 08:24:48 |
Sala Sismica INGV-Roma | 122536381 |
Field | Value |
---|---|
Time (UTC) | 2023-10-29 08:20:00 ± 0.14 |
Latitude | 44.0638 ± 0.0036 |
Longitude | 11.6058 ± 0.0088 |
Depth (km) | 9 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 122536381 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 702 |
Semi-minor axis of confidence ellipse (meter) | 146 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 67 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 700.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 225 |
Number of associated phases, regardless of their use for origin computation | 15 |
Number of defining phases | 12 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.13 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.31117 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 0.8 |
Uncertainty | 0.5 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 122536381 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-10-29 08:24:48 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.SACS.HHZ. | 2023-10-29T08:20:22.03 | 3.0 | undecidable | manual | P | 0.51 | 0 | |||
IV.CSNT.HHZ. | 2023-10-29T08:20:20.33 | 3.0 | undecidable | manual | S | -0.38 | 0 | |||
IV.MOCL.EHZ. | 2023-10-29T08:20:13.14 | 0.6 | undecidable | manual | S | 259 | 34.5432 | 50 | 0.18 | 48 |
IV.CRE.HHZ. | 2023-10-29T08:20:10.88 | 3.0 | negative | manual | P | -0.49 | 0 | |||
IV.RUFI.EHZ. | 2023-10-29T08:20:10.16 | 0.6 | undecidable | manual | S | 197 | 26.2515 | 108 | -0.2 | 48 |
IV.VISG.HHZ. | 2023-10-29T08:20:08.34 | 0.6 | undecidable | manual | S | 315 | 19.4694 | 114 | 0.16 | 49 |
IV.RINC.EHZ. | 2023-10-29T08:20:08.26 | 0.3 | undecidable | manual | S | 180 | 19.6692 | 114 | 0.01 | 76 |
IV.SEI.HHZ. | 2023-10-29T08:20:08.22 | 0.3 | undecidable | manual | S | 267 | 19.7691 | 114 | -0.05 | 75 |
IV.MOCL.EHZ. | 2023-10-29T08:20:07.57 | 1.0 | negative | manual | P | 259 | 34.5432 | 50 | -0.24 | 24 |
IV.RUFI.EHZ. | 2023-10-29T08:20:06.09 | 0.6 | undecidable | manual | P | 197 | 26.2515 | 108 | -0.22 | 48 |
IV.VMGN.HHZ. | 2023-10-29T08:20:06.49 | 0.6 | undecidable | manual | S | 206 | 13.4754 | 123 | 0.14 | 50 |
IV.SEI.HHZ. | 2023-10-29T08:20:05.02 | 0.1 | undecidable | manual | P | 267 | 19.7691 | 114 | -0.08 | 100 |
IV.RINC.EHZ. | 2023-10-29T08:20:05.19 | 0.6 | undecidable | manual | P | 180 | 19.6692 | 114 | 0.1 | 50 |
IV.VMGN.HHZ. | 2023-10-29T08:20:04.16 | 0.1 | positive | manual | P | 206 | 13.4754 | 123 | 0.17 | 99 |
IV.VISG.HHZ. | 2023-10-29T08:20:04.94 | 0.3 | positive | manual | P | 315 | 19.4694 | 114 | -0.11 | 75 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.SEI.HHE. | ML:1.6 | 0.00026900000000000003 | 0.26 | AML | other | m | 2023-10-29T08:20:08.53 |
IV.VMGN.HHE. | ML:0.4 | 0.00003085 | 0.46 | AML | other | m | 2023-10-29T08:20:08.69 |
IV.VISG.HHE. | ML:0.8 | 0.00005160000000000001 | 0.68 | AML | other | m | 2023-10-29T08:20:08.86 |
IV.SEI.HHN. | ML:1.8 | 0.0005064999999999999 | 0.2 | AML | other | m | 2023-10-29T08:20:08.93 |
IV.VISG.HHN. | ML:0.8 | 0.0000446 | 0.8 | AML | other | m | 2023-10-29T08:20:09.43 |
IV.VMGN.HHN. | ML:0.4 | 0.00003245 | 1.44 | AML | other | m | 2023-10-29T08:20:09.84 |