A magnitude ML 1.0 earthquake occured in region: 3 km E Marradi (FI), on
and geographic coordinates (lat, lon) 44.0720, 11.6500 at 11 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 | 3 | 3139 | 3139 |
Tredozio | FC | 8 | 1212 | 4351 |
Palazzuolo sul Senio | FI | 9 | 1154 | 5505 |
Portico e San Benedetto | FC | 12 | 756 | 6261 |
Premilcuore | FC | 15 | 799 | 7060 |
Modigliana | FC | 15 | 4560 | 11620 |
Rocca San Casciano | FC | 16 | 1910 | 13530 |
San Godenzo | FI | 16 | 1167 | 14697 |
Casola Valsenio | RA | 17 | 2617 | 17314 |
Brisighella | RA | 19 | 7639 | 24953 |
Castel del Rio | BO | 20 | 1246 | 26199 |
Dovadola | FC | 20 | 1653 | 27852 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.0 | 2023-10-28 02:40:18 |
44.0723 | 11.6498 | 11 | 2023-10-28 02:51:43 |
Sala Sismica INGV-Roma | 122485781 |
Field | Value |
---|---|
Time (UTC) | 2023-10-28 02:40:18 ± 0.18 |
Latitude | 44.0723 ± 0.0144 |
Longitude | 11.6498 ± 0.0125 |
Depth (km) | 11 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 122485781 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1670 |
Semi-minor axis of confidence ellipse (meter) | 970 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 344 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1670.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 178 |
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) | 0.34 |
Epicentral distance of station closest to the epicenter (degree) | 0.04137 |
Epicentral distance of station farthest from the epicenter (degree) | 0.55398 |
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 | 1.0 |
Uncertainty | 0.1 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 122485781 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-10-28 02:51:43 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CPGN.HNZ. | 2023-10-28T02:40:28.53 | 0.3 | positive | manual | P | 119 | 61.494 | 50 | -0.67 | 57 |
IV.RUFI.EHZ. | 2023-10-28T02:40:28.40 | 0.1 | undecidable | manual | S | 203 | 28.3494 | 50 | 0.07 | 95 |
IV.SEI.HHZ. | 2023-10-28T02:40:26.80 | 0.1 | undecidable | manual | S | 265 | 23.2545 | 50 | -0.2 | 93 |
IV.RUFI.EHZ. | 2023-10-28T02:40:24.40 | 0.6 | undecidable | manual | P | 203 | 28.3494 | 50 | 0.31 | 45 |
IV.SEI.HHZ. | 2023-10-28T02:40:23.40 | 0.6 | negative | manual | P | 265 | 23.2545 | 50 | 0.08 | 48 |
IV.LMD.HHZ. | 2023-10-28T02:40:22.40 | 0.1 | undecidable | manual | S | 83 | 4.5954 | 157 | -0.02 | 100 |
IV.LMD.HHZ. | 2023-10-28T02:40:21.04 | 0.1 | positive | manual | P | 83 | 4.5954 | 157 | 0.37 | 93 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LMD.HHN. | ML:1.1 | 0.0002145 | 0.14 | AML | other | m | 2023-10-28T02:40:22.53 |
IV.LMD.HHE. | ML:0.9 | 0.000133 | 0.24 | AML | other | m | 2023-10-28T02:40:22.53 |