A magnitude ML 0.4 earthquake occured in region: 1 km SE Marradi (FI), on
and geographic coordinates (lat, lon) 44.0660, 11.6210 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 | 15 | 1167 | 7428 |
Premilcuore | FC | 16 | 799 | 8227 |
Modigliana | FC | 17 | 4560 | 12787 |
Casola Valsenio | RA | 18 | 2617 | 15404 |
Rocca San Casciano | FC | 18 | 1910 | 17314 |
Castel del Rio | BO | 19 | 1246 | 18560 |
Vicchio | FI | 19 | 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 08:47:09 |
44.0658 | 11.6207 | 6 | 2023-10-28 08:55:21 |
Sala Sismica INGV-Roma | 122503931 |
Field | Value |
---|---|
Time (UTC) | 2023-10-28 08:47:09 ± 0.14 |
Latitude | 44.0658 ± 0.0036 |
Longitude | 11.6207 ± 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 | 122503931 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 517 |
Semi-minor axis of confidence ellipse (meter) | 129 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 302 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 520.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 104 |
Number of associated phases, regardless of their use for origin computation | 15 |
Number of defining phases | 14 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.23 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.24102 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 0.4 |
Uncertainty | 0.1 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 122503931 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-10-28 08:55:21 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CSNT.HHZ. | 2023-10-28T08:47:19.12 | 3.0 | negative | manual | P | -0.27 | 0 | |||
IV.VISG.HHZ. | 2023-10-28T08:47:17.10 | 0.3 | undecidable | manual | S | 313 | 20.1687 | 106 | 0.22 | 94 |
IT.MOG.HNZ. | 2023-10-28T08:47:16.08 | 0.3 | undecidable | manual | S | 45 | 16.4724 | 110 | 0.43 | 91 |
IV.RINC.EHZ. | 2023-10-28T08:47:16.96 | 0.3 | undecidable | manual | S | 183 | 19.9689 | 106 | 0.16 | 96 |
IV.VMGN.HHZ. | 2023-10-28T08:47:15.37 | 0.3 | undecidable | manual | S | 210 | 14.1747 | 113 | 0.44 | 91 |
IV.RUFI.EHZ. | 2023-10-28T08:47:14.69 | 0.3 | undecidable | manual | P | 199 | 26.751 | 102 | -0.4 | 90 |
IV.VISG.HHZ. | 2023-10-28T08:47:13.71 | 0.3 | undecidable | manual | P | 313 | 20.1687 | 106 | -0.09 | 97 |
IV.RINC.EHZ. | 2023-10-28T08:47:13.79 | 0.3 | undecidable | manual | P | 183 | 19.9689 | 106 | 0.03 | 98 |
IV.SEI.HHZ. | 2023-10-28T08:47:13.70 | 0.3 | undecidable | manual | P | 267 | 20.9679 | 106 | -0.25 | 94 |
IT.MOG.HNZ. | 2023-10-28T08:47:13.04 | 0.3 | undecidable | manual | P | 45 | 16.4724 | 110 | -0.05 | 98 |
IV.VMGN.HHZ. | 2023-10-28T08:47:12.74 | 0.3 | undecidable | manual | P | 210 | 14.1747 | 113 | 0.07 | 98 |
IV.LMD.HHZ. | 2023-10-28T08:47:12.69 | 0.3 | undecidable | manual | S | 79 | 6.993 | 130 | -0.09 | 99 |
IV.LMD.HHZ. | 2023-10-28T08:47:11.21 | 0.3 | undecidable | manual | P | 79 | 6.993 | 130 | -0.22 | 97 |
IT.MRR.HGZ. | 2023-10-28T08:47:11.58 | 0.3 | undecidable | manual | S | 262 | 1.3986 | 167 | -0.11 | 100 |
IT.MRR.HGZ. | 2023-10-28T08:47:10.71 | 0.3 | undecidable | manual | P | 262 | 1.3986 | 167 | -0.09 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LMD.HHE. | ML:0.0 | 0.0001657507 | 0.1024 | AML | other | m | 2023-10-28T08:47:12.78 |
IV.LMD.HHN. | ML:0.0 | 0.00051447715 | 0.1216 | AML | other | m | 2023-10-28T08:47:12.78 |
IV.VMGN.HHE. | ML:0.5 | 0.00003349036 | 0.1024 | AML | other | m | 2023-10-28T08:47:15.50 |
IV.VMGN.HHN. | ML:0.5 | 0.0000354665 | 0.0832 | AML | other | m | 2023-10-28T08:47:15.72 |
IV.VISG.HHE. | ML:0.3 | 0.0000140255815 | 0.16 | AML | other | m | 2023-10-28T08:47:18.35 |
IV.VISG.HHN. | ML:0.5 | 0.00002378807 | 0.1216 | AML | other | m | 2023-10-28T08:47:17.27 |