A magnitude ML 1.5 earthquake occured in region: 1 km SE Marradi (FI), on
and geographic coordinates (lat, lon) 44.0710, 11.6190 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 | 7 | 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 | 18 | 1246 | 18560 |
Vicchio | FI | 20 | 8044 | 26604 |
Firenzuola | FI | 20 | 4726 | 31330 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.5 | 2023-10-28 04:21:04 |
44.0712 | 11.6188 | 7 | 2023-10-28 04:25:11 |
Sala Sismica INGV-Roma | 122492641 |
Field | Value |
---|---|
Time (UTC) | 2023-10-28 04:21:04 ± 0.1 |
Latitude | 44.0712 ± 0.0036 |
Longitude | 11.6188 ± 0.0050 |
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 | 122492641 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 398 |
Semi-minor axis of confidence ellipse (meter) | 182 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 218 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 400.0 |
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 | 16 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.22 |
Epicentral distance of station closest to the epicenter (degree) | 0.06385 |
Epicentral distance of station farthest from the epicenter (degree) | 0.51171 |
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 | 1.5 |
Uncertainty | 0.3 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 122492641 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-10-28 04:25:11 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CRE.HHZ. | 2023-10-28T04:21:23.21 | 0.1 | undecidable | manual | S | 152 | 56.7987 | 50 | 0.23 | 88 |
IV.MOCL.EHZ. | 2023-10-28T04:21:17.02 | 0.1 | undecidable | manual | S | 258 | 35.742 | 101 | -0.08 | 94 |
IV.CRE.HHZ. | 2023-10-28T04:21:14.61 | 1.0 | positive | manual | P | 152 | 56.7987 | 50 | -0.54 | 20 |
IV.RUFI.EHZ. | 2023-10-28T04:21:14.00 | 0.1 | undecidable | manual | S | 199 | 27.3504 | 105 | -0.25 | 92 |
IV.RINC.EHZ. | 2023-10-28T04:21:12.15 | 0.1 | undecidable | manual | S | 183 | 20.5683 | 109 | 0.16 | 95 |
IV.VISG.HHZ. | 2023-10-28T04:21:12.06 | 0.1 | undecidable | manual | S | 312 | 19.6692 | 110 | 0.34 | 92 |
IV.SEI.HHZ. | 2023-10-28T04:21:12.02 | 0.1 | undecidable | manual | S | 265 | 20.868 | 109 | -0.08 | 97 |
IV.MOCL.EHZ. | 2023-10-28T04:21:11.43 | 0.6 | undecidable | manual | P | 258 | 35.742 | 101 | -0.33 | 45 |
IV.VMGN.HHZ. | 2023-10-28T04:21:10.48 | 0.1 | undecidable | manual | S | 208 | 14.6742 | 116 | 0.37 | 92 |
IV.RUFI.EHZ. | 2023-10-28T04:21:09.79 | 0.3 | positive | manual | P | 199 | 27.3504 | 105 | -0.33 | 68 |
IV.VISG.HHZ. | 2023-10-28T04:21:08.61 | 0.3 | undecidable | manual | P | 312 | 19.6692 | 110 | -0.04 | 73 |
IV.SEI.HHZ. | 2023-10-28T04:21:08.74 | 0.1 | positive | manual | P | 265 | 20.868 | 109 | -0.13 | 96 |
IV.RINC.EHZ. | 2023-10-28T04:21:08.80 | 0.6 | positive | manual | P | 183 | 20.5683 | 109 | -0.01 | 49 |
IV.LMD.HHZ. | 2023-10-28T04:21:07.86 | 0.1 | undecidable | manual | S | 84 | 7.0929 | 135 | -0.08 | 99 |
IV.VMGN.HHZ. | 2023-10-28T04:21:07.85 | 0.1 | positive | manual | P | 208 | 14.6742 | 116 | 0.12 | 97 |
IV.LMD.HHZ. | 2023-10-28T04:21:06.44 | 0.1 | undecidable | manual | P | 84 | 7.0929 | 135 | -0.03 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LMD.HHE. | ML:1.6 | 0.0008070000000000001 | 1.88 | AML | other | m | 2023-10-28T04:21:08.99 |
IV.LMD.HHN. | ML:1.9 | 0.00157 | 1.7 | AML | other | m | 2023-10-28T04:21:08.99 |
IV.VMGN.HHE. | ML:1.3 | 0.0002045 | 0.38 | AML | other | m | 2023-10-28T04:21:10.58 |
IV.VMGN.HHN. | ML:1.4 | 0.000249 | 0.4 | AML | other | m | 2023-10-28T04:21:10.79 |
IV.RINC.EHE. | ML:1.6 | 0.0003055 | 0.22 | AML | other | m | 2023-10-28T04:21:12.18 |
IV.SEI.HHE. | ML:1.7 | 0.00038500000000000003 | 0.22 | AML | other | m | 2023-10-28T04:21:12.27 |
IV.RINC.EHN. | ML:1.6 | 0.00026749999999999994 | 0.66 | AML | other | m | 2023-10-28T04:21:12.66 |
IV.VISG.HHE. | ML:1.0 | 0.0000751 | 0.6 | AML | other | m | 2023-10-28T04:21:13.49 |
IV.SEI.HHN. | ML:1.9 | 0.0005854999999999999 | 1.54 | AML | other | m | 2023-10-28T04:21:14.79 |
IV.RUFI.EHN. | ML:1.5 | 0.000158 | 0.52 | AML | other | m | 2023-10-28T04:21:14.13 |
IV.RUFI.EHE. | ML:0.9 | 0.0000394 | 0.28 | AML | other | m | 2023-10-28T04:21:14.67 |
IV.VISG.HHN. | ML:1.1 | 0.00011 | 1.18 | AML | other | m | 2023-10-28T04:21:14.15 |
IV.CRE.HHN. | ML:1.8 | 0.000127 | 1.48 | AML | other | m | 2023-10-28T04:21:23.98 |
IV.CRE.HHE. | ML:1.6 | 0.00007919999999999999 | 1.38 | AML | other | m | 2023-10-28T04:21:23.10 |