A magnitude ML 0.9 earthquake occured in region: 2 km SE Marradi (FI), on
and geographic coordinates (lat, lon) 44.0630, 11.6260 at 6 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 | 8 | 1154 | 4293 |
Tredozio | FC | 10 | 1212 | 5505 |
Portico e San Benedetto | FC | 13 | 756 | 6261 |
San Godenzo | FI | 15 | 1167 | 7428 |
Premilcuore | FC | 15 | 799 | 8227 |
Modigliana | FC | 17 | 4560 | 12787 |
Rocca San Casciano | FC | 17 | 1910 | 14697 |
Casola Valsenio | RA | 18 | 2617 | 17314 |
Vicchio | FI | 19 | 8044 | 25358 |
Castel del Rio | BO | 19 | 1246 | 26604 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2023-10-28 03:59:44 |
44.0628 | 11.6262 | 6 | 2023-10-28 04:07:45 |
Sala Sismica INGV-Roma | 122491721 |
Field | Value |
---|---|
Time (UTC) | 2023-10-28 03:59:44 ± 0.11 |
Latitude | 44.0628 ± 0.0036 |
Longitude | 11.6262 ± 0.0050 |
Depth (km) | 6 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 122491721 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 419 |
Semi-minor axis of confidence ellipse (meter) | 143 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 326 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 420.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 125 |
Number of associated phases, regardless of their use for origin computation | 14 |
Number of defining phases | 14 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.19 |
Epicentral distance of station closest to the epicenter (degree) | 0.01619 |
Epicentral distance of station farthest from the epicenter (degree) | 0.24012 |
Number of stations at which the event was observed | 8 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.4 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 122491721 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-10-28 04:07:45 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.RUFI.EHZ. | 2023-10-28T03:59:54.05 | 0.3 | undecidable | manual | S | 201 | 26.6511 | 103 | -0.08 | 71 |
IV.VISG.HHZ. | 2023-10-28T03:59:52.32 | 0.3 | undecidable | manual | S | 313 | 20.7681 | 106 | 0.18 | 71 |
IV.SEI.HHZ. | 2023-10-28T03:59:52.42 | 0.3 | undecidable | manual | S | 268 | 21.3675 | 106 | 0.06 | 72 |
IV.VMGN.HHZ. | 2023-10-28T03:59:50.46 | 0.3 | undecidable | manual | S | 212 | 14.1747 | 113 | 0.46 | 67 |
IV.RUFI.EHZ. | 2023-10-28T03:59:49.87 | 0.1 | undecidable | manual | P | 201 | 26.6511 | 103 | -0.25 | 92 |
IV.BOSL.HHZ. | 2023-10-28T03:59:49.78 | 0.1 | undecidable | manual | P | 234 | 24.8529 | 104 | 0 | 97 |
IV.VISG.HHZ. | 2023-10-28T03:59:48.89 | 0.3 | undecidable | manual | P | 313 | 20.7681 | 106 | -0.09 | 72 |
IT.MOG.HNZ. | 2023-10-28T03:59:48.28 | 0.1 | undecidable | manual | P | 43 | 16.3725 | 110 | 0.13 | 96 |
IV.SEI.HHZ. | 2023-10-28T03:59:48.82 | 0.3 | undecidable | manual | P | 268 | 21.3675 | 106 | -0.28 | 69 |
IV.VMGN.HHZ. | 2023-10-28T03:59:47.94 | 0.6 | positive | manual | P | 212 | 14.1747 | 113 | 0.2 | 47 |
IV.LMD.HHZ. | 2023-10-28T03:59:47.81 | 0.1 | undecidable | manual | S | 76 | 6.6933 | 133 | 0.03 | 99 |
IV.LMD.HHZ. | 2023-10-28T03:59:46.46 | 0.1 | undecidable | manual | P | 76 | 6.6933 | 133 | 0 | 100 |
IT.MRR.HGZ. | 2023-10-28T03:59:46.74 | 0.1 | undecidable | manual | S | 274 | 1.7982 | 163 | -0.12 | 98 |
IT.MRR.HGZ. | 2023-10-28T03:59:45.85 | 0.1 | undecidable | manual | P | 274 | 1.7982 | 163 | -0.08 | 99 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.SEI.HHE. | ML:1.1 | 0.00009515 | 1.44 | AML | other | m | 2023-10-28T03:59:52.75 |
IV.SEI.HHN. | ML:1.5 | 0.000231 | 0.26 | AML | other | m | 2023-10-28T03:59:52.81 |
IV.VMGN.HHE. | ML:0.5 | 0.000038244565 | 0.1024 | AML | other | m | 2023-10-28T03:59:50.86 |
IV.VMGN.HHN. | ML:0.8 | 0.00006733677499999999 | 0.4192 | AML | other | m | 2023-10-28T03:59:50.89 |