A magnitude ML 1.5 earthquake occured in region: 2 km SE Marradi (FI), on
and geographic coordinates (lat, lon) 44.0630, 11.6270 at 8 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 | 2 | 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 | 15 | 1167 | 7428 |
Premilcuore | FC | 15 | 799 | 8227 |
Modigliana | FC | 17 | 4560 | 12787 |
Rocca San Casciano | FC | 17 | 1910 | 14697 |
Casola Valsenio | RA | 18 | 2617 | 17314 |
Vicchio | FI | 19 | 8044 | 25358 |
Castel del Rio | BO | 19 | 1246 | 26604 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.5 | 2023-10-28 03:10:53 |
44.0628 | 11.6268 | 8 | 2023-10-28 03:16:55 |
Sala Sismica INGV-Roma | 122487831 |
Field | Value |
---|---|
Time (UTC) | 2023-10-28 03:10:53 ± 0.18 |
Latitude | 44.0628 ± 0.0045 |
Longitude | 11.6268 ± 0.0050 |
Depth (km) | 8 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 122487831 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 457 |
Semi-minor axis of confidence ellipse (meter) | 186 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 205 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 460.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 66 |
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) | 0.24 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.30757 |
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 | 1.5 |
Uncertainty | 0.3 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 122487831 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-10-28 03:16:55 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.FNVD.HHZ. | 2023-10-28T03:11:10.30 | 0.6 | undecidable | manual | S | 0.6 | 0.76 | |||
IV.CRE.HHZ. | 2023-10-28T03:11:03.23 | 3.0 | negative | manual | P | 3.71 | 0 | |||
IV.RUFI.EHZ. | 2023-10-28T03:11:02.66 | 0.1 | undecidable | manual | S | 201 | 26.6511 | 106 | -0.04 | 98 |
IV.SFI.EHZ. | 2023-10-28T03:11:02.17 | 0.1 | undecidable | manual | S | 135 | 24.8529 | 107 | 0.08 | 98 |
IV.VISG.HHZ. | 2023-10-28T03:11:00.81 | 0.1 | undecidable | manual | S | 312 | 20.7681 | 110 | 0.06 | 99 |
IV.IMOL.EHZ. | 2023-10-28T03:11:00.86 | 0.6 | positive | manual | P | 16 | 34.1436 | 103 | 0.77 | 40 |
IV.SEI.HHZ. | 2023-10-28T03:11:00.84 | 0.1 | undecidable | manual | S | 268 | 21.3675 | 110 | -0.12 | 98 |
IV.SFI.EHZ. | 2023-10-28T03:10:58.14 | 0.1 | undecidable | manual | P | 135 | 24.8529 | 107 | -0.14 | 97 |
IV.RUFI.EHZ. | 2023-10-28T03:10:58.43 | 0.1 | undecidable | manual | P | 201 | 26.6511 | 106 | -0.2 | 95 |
IV.VMGN.HHZ. | 2023-10-28T03:10:58.99 | 0.1 | undecidable | manual | S | 212 | 14.1747 | 118 | 0.32 | 95 |
IV.VISG.HHZ. | 2023-10-28T03:10:57.41 | 0.6 | negative | manual | P | 312 | 20.7681 | 110 | -0.1 | 49 |
IV.SEI.HHZ. | 2023-10-28T03:10:57.42 | 0.1 | positive | manual | P | 268 | 21.3675 | 110 | -0.21 | 96 |
IV.VMGN.HHZ. | 2023-10-28T03:10:56.49 | 0.1 | positive | manual | P | 212 | 14.1747 | 118 | 0.19 | 98 |
IV.LMD.HHZ. | 2023-10-28T03:10:56.45 | 0.1 | undecidable | manual | S | 76 | 6.5934 | 139 | -0.13 | 100 |
IV.LMD.HHZ. | 2023-10-28T03:10:55.03 | 0.3 | undecidable | manual | P | 76 | 6.5934 | 139 | -0.07 | 76 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LMD.HHN. | ML:2.1 | 0.0024699999999999995 | 0.1 | AML | other | m | 2023-10-28T03:10:56.52 |
IV.LMD.HHE. | ML:1.8 | 0.0010875 | 0.3 | AML | other | m | 2023-10-28T03:10:56.52 |
IV.VMGN.HHE. | ML:1.4 | 0.00026450000000000003 | 0.36 | AML | other | m | 2023-10-28T03:10:59.40 |
IV.VMGN.HHN. | ML:1.5 | 0.0003325 | 0.42 | AML | other | m | 2023-10-28T03:10:59.44 |
IV.VISG.HHN. | ML:1.3 | 0.00014150000000000002 | 0.12 | AML | other | m | 2023-10-28T03:11:01.07 |
IV.SEI.HHE. | ML:1.7 | 0.000374 | 0.6 | AML | other | m | 2023-10-28T03:11:01.53 |
IV.SEI.HHN. | ML:2.1 | 0.0009295 | 0.3 | AML | other | m | 2023-10-28T03:11:01.29 |
IV.VISG.HHE. | ML:1.1 | 0.00009695 | 1.22 | AML | other | m | 2023-10-28T03:11:02.06 |
IV.SFI.EHE. | ML:1.3 | 0.00012235 | 0.2 | AML | other | m | 2023-10-28T03:11:02.24 |
IV.SFI.EHN. | ML:1.4 | 0.000161 | 0.52 | AML | other | m | 2023-10-28T03:11:02.58 |