A magnitude ML 0.4 earthquake occured in region: 1 km SE Marradi (FI), on
and geographic coordinates (lat, lon) 44.0700, 11.6230 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 | 1 | 3139 | 3139 |
Palazzuolo sul Senio | FI | 8 | 1154 | 4293 |
Tredozio | FC | 10 | 1212 | 5505 |
Portico e San Benedetto | FC | 14 | 756 | 6261 |
San Godenzo | FI | 16 | 1167 | 7428 |
Premilcuore | FC | 16 | 799 | 8227 |
Modigliana | FC | 17 | 4560 | 12787 |
Casola Valsenio | RA | 17 | 2617 | 15404 |
Rocca San Casciano | FC | 18 | 1910 | 17314 |
Castel del Rio | BO | 19 | 1246 | 18560 |
Vicchio | FI | 20 | 8044 | 26604 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.4 | 2023-10-28 07:28:22 |
44.0703 | 11.6228 | 6 | 2023-10-28 07:34:55 |
Sala Sismica INGV-Roma | 122501151 |
Field | Value |
---|---|
Time (UTC) | 2023-10-28 07:28:22 ± 0.14 |
Latitude | 44.0703 ± 0.0036 |
Longitude | 11.6228 ± 0.0063 |
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 | 122501151 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 450 |
Semi-minor axis of confidence ellipse (meter) | 243 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 319 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 450.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 132 |
Number of associated phases, regardless of their use for origin computation | 16 |
Number of defining phases | 13 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.18 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.24641 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 0.4 |
Uncertainty | 0.3 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 122501151 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-10-28 07:34:55 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.SBPO.HNZ. | 2023-10-28T07:28:41.25 | 3.0 | undecidable | manual | Pg | 0.45 | 0 | |||
IV.FNVD.HHZ. | 2023-10-28T07:28:39.59 | 3.0 | undecidable | manual | S | 0.81 | 0 | |||
IV.RUFI.EHZ. | 2023-10-28T07:28:32.08 | 0.3 | undecidable | manual | S | 199 | 27.3504 | 103 | -0.18 | 92 |
IV.SEI.HHZ. | 2023-10-28T07:28:30.21 | 0.3 | undecidable | manual | S | 265 | 21.1677 | 107 | 0.03 | 96 |
IV.RINC.EHZ. | 2023-10-28T07:28:29.97 | 0.3 | undecidable | manual | S | 184 | 20.4684 | 107 | 0.02 | 97 |
IV.FNVD.HHZ. | 2023-10-28T07:28:29.05 | 3.0 | undecidable | manual | P | -1.52 | 0 | |||
IV.VMGN.HHZ. | 2023-10-28T07:28:28.56 | 0.3 | undecidable | manual | S | 209 | 14.7741 | 113 | 0.47 | 89 |
IV.RUFI.EHZ. | 2023-10-28T07:28:27.81 | 0.3 | undecidable | manual | P | 199 | 27.3504 | 103 | -0.34 | 89 |
IV.RINC.EHZ. | 2023-10-28T07:28:26.80 | 0.3 | undecidable | manual | P | 184 | 20.4684 | 107 | -0.01 | 97 |
IV.VISG.HHN. | 2023-10-28T07:28:26.81 | 0.3 | undecidable | manual | P | 311 | 19.9689 | 108 | 0.09 | 95 |
IV.SEI.HHZ. | 2023-10-28T07:28:26.88 | 0.3 | undecidable | manual | P | 265 | 21.1677 | 107 | -0.07 | 96 |
IV.LMD.HHZ. | 2023-10-28T07:28:25.79 | 0.3 | undecidable | manual | S | 83 | 6.7932 | 133 | 0.05 | 98 |
IV.VMGN.HHZ. | 2023-10-28T07:28:25.81 | 0.3 | undecidable | manual | P | 209 | 14.7741 | 113 | 0.07 | 97 |
IV.LMD.HHZ. | 2023-10-28T07:28:24.47 | 0.3 | undecidable | manual | P | 83 | 6.7932 | 133 | 0.09 | 98 |
IT.MRR.HGZ. | 2023-10-28T07:28:24.61 | 0.3 | undecidable | manual | S | 246 | 1.6983 | 165 | -0.19 | 96 |
IT.MRR.HGZ. | 2023-10-28T07:28:23.83 | 0.3 | undecidable | manual | P | 246 | 1.6983 | 165 | -0.01 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LMD.HHE. | ML:0.0 | 0.000056615809999999995 | 0.096 | AML | other | m | 2023-10-28T07:28:26.32 |
IV.LMD.HHN. | ML:0.0 | 0.0000927116 | 0.1152 | AML | other | m | 2023-10-28T07:28:26.00 |
IV.VMGN.HHE. | ML:0.1 | 0.0000163364875 | 0.1408 | AML | other | m | 2023-10-28T07:28:28.66 |
IV.VMGN.HHN. | ML:0.3 | 0.000019766950000000002 | 0.2816 | AML | other | m | 2023-10-28T07:28:29.47 |
IV.SEI.HHE. | ML:0.6 | 0.000031226648 | 0.2368 | AML | other | m | 2023-10-28T07:28:30.44 |
IV.SEI.HHN. | ML:0.9 | 0.000060276200000000004 | 0.3584 | AML | other | m | 2023-10-28T07:28:31.72 |