A magnitude ML 1.2 earthquake occured in region: 1 km SE Marradi (FI), on
and geographic coordinates (lat, lon) 44.0710, 11.6280 at 10 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 | 9 | 1212 | 5505 |
Portico e San Benedetto | FC | 13 | 756 | 6261 |
Premilcuore | FC | 16 | 799 | 7060 |
San Godenzo | FI | 16 | 1167 | 8227 |
Modigliana | FC | 16 | 4560 | 12787 |
Casola Valsenio | RA | 17 | 2617 | 15404 |
Rocca San Casciano | FC | 17 | 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 1.2 | 2023-10-28 02:59:44 |
44.0707 | 11.6275 | 10 | 2023-10-28 03:04:35 |
Sala Sismica INGV-Roma | 122486891 |
Field | Value |
---|---|
Time (UTC) | 2023-10-28 02:59:44 ± 0.09 |
Latitude | 44.0707 ± 0.0036 |
Longitude | 11.6275 ± 0.0050 |
Depth (km) | 10 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 122486891 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 435 |
Semi-minor axis of confidence ellipse (meter) | 216 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 29 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 440.0 |
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 | 14 |
Number of defining phases | 14 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.17 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.24731 |
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 | 1.2 |
Uncertainty | 0.2 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 122486891 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-10-28 03:04:35 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.PARC.HHZ. | 2023-10-28T02:59:57.89 | 1.0 | undecidable | manual | S | -0.04 | 0.62 | |||
IV.RUFI.EHZ. | 2023-10-28T02:59:54.88 | 0.1 | undecidable | manual | S | 200 | 27.4503 | 50 | -0.12 | 96 |
IV.SFI.EHZ. | 2023-10-28T02:59:54.62 | 0.1 | undecidable | manual | S | 136 | 25.4523 | 111 | 0.2 | 95 |
IV.SEI.HHZ. | 2023-10-28T02:59:53.06 | 0.1 | undecidable | manual | S | 265 | 21.5673 | 115 | -0.12 | 97 |
IV.IMOL.EHZ. | 2023-10-28T02:59:53.12 | 0.6 | undecidable | manual | S | -0.02 | 1.24 | |||
IV.VISG.HHZ. | 2023-10-28T02:59:52.84 | 0.1 | undecidable | manual | S | 311 | 20.2686 | 116 | 0.07 | 99 |
IV.VMGN.HHZ. | 2023-10-28T02:59:51.14 | 0.1 | undecidable | manual | S | 210 | 14.9739 | 124 | -0.04 | 100 |
IV.RUFI.EHZ. | 2023-10-28T02:59:50.67 | 0.1 | undecidable | manual | P | 200 | 27.4503 | 50 | -0.08 | 97 |
IV.SFI.EHZ. | 2023-10-28T02:59:50.45 | 0.1 | undecidable | manual | P | 136 | 25.4523 | 111 | 0.03 | 98 |
IV.VISG.HHZ. | 2023-10-28T02:59:49.67 | 0.3 | undecidable | manual | P | 311 | 20.2686 | 116 | 0.2 | 72 |
IV.SEI.HHZ. | 2023-10-28T02:59:49.67 | 1.0 | positive | manual | P | 265 | 21.5673 | 115 | -0.03 | 25 |
IV.LMD.HHZ. | 2023-10-28T02:59:48.77 | 0.1 | undecidable | manual | S | 83 | 6.3936 | 147 | -0.29 | 96 |
IV.VMGN.HHZ. | 2023-10-28T02:59:48.76 | 0.1 | positive | manual | P | 210 | 14.9739 | 124 | 0.21 | 97 |
IV.LMD.HHZ. | 2023-10-28T02:59:47.33 | 1.0 | undecidable | manual | P | 83 | 6.3936 | 147 | 0.01 | 26 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VMGN.HHE. | ML:1.1 | 0.00011224999999999999 | 0.4 | AML | other | m | 2023-10-28T02:59:51.48 |
IV.VMGN.HHN. | ML:1.2 | 0.000133 | 0.42 | AML | other | m | 2023-10-28T02:59:51.70 |
IV.SEI.HHE. | ML:1.4 | 0.000188 | 1.1 | AML | other | m | 2023-10-28T02:59:53.75 |
IV.VISG.HHE. | ML:1.0 | 0.00006775000000000001 | 1.08 | AML | other | m | 2023-10-28T02:59:53.81 |
IV.SEI.HHN. | ML:1.7 | 0.0003285 | 0.58 | AML | other | m | 2023-10-28T02:59:54.72 |
IV.SFI.EHN. | ML:1.3 | 0.00010585 | 1.28 | AML | other | m | 2023-10-28T02:59:55.70 |
IV.VISG.HHN. | ML:1.1 | 0.0000893 | 0.18 | AML | other | m | 2023-10-28T02:59:55.40 |
IV.SFI.EHE. | ML:1.2 | 0.00008365 | 0.16 | AML | other | m | 2023-10-28T02:59:55.50 |