A magnitude ML 0.9 earthquake occured in region: 1 km SE Marradi (FI), on
and geographic coordinates (lat, lon) 44.0700, 11.6240 at 7 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 | 13 | 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 0.9 | 2023-10-29 08:07:46 |
44.0695 | 11.6245 | 7 | 2023-10-29 08:29:52 |
Sala Sismica INGV-Roma | 122536611 |
Field | Value |
---|---|
Time (UTC) | 2023-10-29 08:07:46 ± 0.14 |
Latitude | 44.0695 ± 0.0036 |
Longitude | 11.6245 ± 0.0075 |
Depth (km) | 7 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 122536611 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 492 |
Semi-minor axis of confidence ellipse (meter) | 408 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 255 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 490.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 233 |
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) | 0.15 |
Epicentral distance of station closest to the epicenter (degree) | 0.01619 |
Epicentral distance of station farthest from the epicenter (degree) | 0.24551 |
Number of stations at which the event was observed | 7 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.5 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 122536611 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-10-29 08:29:52 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.RUFI.EHN. | 2023-10-29T08:07:56.14 | 0.6 | undecidable | manual | S | 200 | 27.2505 | 104 | -0.21 | 46 |
IV.BOSL.HHZ. | 2023-10-29T08:07:55.67 | 0.6 | undecidable | manual | S | 233 | 25.1526 | 105 | 0.02 | 48 |
IV.RINC.EHE. | 2023-10-29T08:07:54.21 | 0.6 | undecidable | manual | S | 184 | 20.3685 | 108 | 0.17 | 47 |
IV.SEI.HHZ. | 2023-10-29T08:07:54.31 | 0.6 | undecidable | manual | S | 266 | 21.2676 | 107 | -0.04 | 48 |
IV.VISG.HHZ. | 2023-10-29T08:07:54.18 | 0.6 | undecidable | manual | S | 311 | 20.1687 | 108 | 0.21 | 47 |
IV.VMGN.HHZ. | 2023-10-29T08:07:52.44 | 0.6 | undecidable | manual | S | 210 | 14.6742 | 114 | 0.22 | 47 |
IV.BOSL.HHZ. | 2023-10-29T08:07:51.84 | 0.1 | undecidable | manual | P | 233 | 25.1526 | 105 | 0.01 | 96 |
IV.RUFI.EHN. | 2023-10-29T08:07:51.99 | 0.1 | undecidable | manual | P | 200 | 27.2505 | 104 | -0.25 | 91 |
IV.VMGN.HHZ. | 2023-10-29T08:07:50.09 | 0.3 | undecidable | manual | P | 210 | 14.6742 | 114 | 0.24 | 70 |
IV.RINC.EHE. | 2023-10-29T08:07:50.97 | 0.1 | undecidable | manual | P | 184 | 20.3685 | 108 | 0.07 | 96 |
IV.SEI.HHZ. | 2023-10-29T08:07:50.95 | 0.1 | undecidable | manual | P | 266 | 21.2676 | 107 | -0.13 | 95 |
IV.VISG.HHZ. | 2023-10-29T08:07:50.85 | 0.1 | undecidable | manual | P | 311 | 20.1687 | 108 | -0.01 | 97 |
IT.MRR.HGN. | 2023-10-29T08:07:48.83 | 0.6 | undecidable | manual | S | 251 | 1.7982 | 165 | -0.18 | 48 |
IT.MRR.HGN. | 2023-10-29T08:07:48.02 | 0.1 | undecidable | manual | P | 251 | 1.7982 | 165 | 0.02 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VMGN.HHE. | ML:0.4 | 0.0000259 | 0.54 | AML | other | m | 2023-10-29T08:07:52.92 |
IV.VMGN.HHN. | ML:0.4 | 0.00002675 | 0.6 | AML | other | m | 2023-10-29T08:07:53.96 |
IV.SEI.HHE. | ML:1.0 | 0.0000797 | 0.24 | AML | other | m | 2023-10-29T08:07:54.49 |
IV.VISG.HHE. | ML:0.7 | 0.0000422 | 0.5 | AML | other | m | 2023-10-29T08:07:54.53 |
IV.VISG.HHN. | ML:0.6 | 0.0000362 | 0.12 | AML | other | m | 2023-10-29T08:07:54.78 |
IV.SEI.HHN. | ML:1.1 | 0.0001012 | 0.42 | AML | other | m | 2023-10-29T08:07:54.85 |
IV.CAMP.HHE. | ML:2.0 | 0.000026375 | 0.48 | AML | other | m | 2023-10-29T08:08:52.68 |
IV.CAMP.HHN. | ML:2.3 | 0.00005005 | 1.4 | AML | other | m | 2023-10-29T08:08:54.75 |