A magnitude ML 1.5 earthquake occured in region: 3 km SW Marradi (FI), on
and geographic coordinates (lat, lon) 44.0520, 11.6010 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 | 3 | 3139 | 3139 |
Palazzuolo sul Senio | FI | 8 | 1154 | 4293 |
Tredozio | FC | 12 | 1212 | 5505 |
San Godenzo | FI | 14 | 1167 | 6672 |
Portico e San Benedetto | FC | 15 | 756 | 7428 |
Premilcuore | FC | 16 | 799 | 8227 |
Vicchio | FI | 17 | 8044 | 16271 |
Dicomano | FI | 19 | 5515 | 21786 |
Firenzuola | FI | 19 | 4726 | 26512 |
Casola Valsenio | RA | 19 | 2617 | 29129 |
Modigliana | FC | 19 | 4560 | 33689 |
Rocca San Casciano | FC | 19 | 1910 | 35599 |
Castel del Rio | BO | 20 | 1246 | 36845 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.5 | 2023-10-28 02:48:02 |
44.0522 | 11.6008 | 8 | 2023-10-28 02:55:47 |
Sala Sismica INGV-Roma | 122486141 |
Field | Value |
---|---|
Time (UTC) | 2023-10-28 02:48:02 ± 0.13 |
Latitude | 44.0522 ± 0.0045 |
Longitude | 11.6008 ± 0.0075 |
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 | 122486141 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 587 |
Semi-minor axis of confidence ellipse (meter) | 345 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 48 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 590.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 112 |
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) | 0.34 |
Epicentral distance of station closest to the epicenter (degree) | 0.10882 |
Epicentral distance of station farthest from the epicenter (degree) | 0.50182 |
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 | 0.2 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 122486141 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-10-28 02:55:47 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CRE.HHZ. | 2023-10-28T02:48:20.96 | 0.1 | undecidable | manual | S | 150 | 55.6998 | 50 | 0.45 | 87 |
IV.IMOL.EHZ. | 2023-10-28T02:48:15.83 | 0.1 | undecidable | manual | S | 18 | 35.9418 | 50 | 0.59 | 85 |
IV.MOCL.EHZ. | 2023-10-28T02:48:14.47 | 0.1 | undecidable | manual | S | 261 | 33.9438 | 103 | -0.11 | 96 |
IV.CRE.HHZ. | 2023-10-28T02:48:12.32 | 0.6 | positive | manual | P | 150 | 55.6998 | 50 | -0.58 | 41 |
IV.SFI.EHZ. | 2023-10-28T02:48:11.51 | 0.1 | undecidable | manual | S | 130 | 25.5522 | 107 | -0.28 | 95 |
IV.RUFI.EHZ. | 2023-10-28T02:48:11.73 | 0.1 | undecidable | manual | S | 197 | 24.8529 | 108 | 0.18 | 97 |
IV.VISG.HHZ. | 2023-10-28T02:48:10.04 | 0.3 | undecidable | manual | S | 319 | 20.1687 | 112 | 0.03 | 75 |
IV.IMOL.EHZ. | 2023-10-28T02:48:09.79 | 1.0 | positive | manual | P | 18 | 35.9418 | 50 | -0.06 | 24 |
IV.SEI.HHZ. | 2023-10-28T02:48:09.87 | 0.1 | undecidable | manual | S | 271 | 19.2696 | 112 | 0.12 | 99 |
IV.MOCL.EHZ. | 2023-10-28T02:48:09.04 | 1.0 | undecidable | manual | P | 261 | 33.9438 | 103 | -0.44 | 22 |
IV.VMGN.HHZ. | 2023-10-28T02:48:07.98 | 0.1 | undecidable | manual | S | 207 | 12.0768 | 123 | 0.45 | 93 |
IV.SFI.EHZ. | 2023-10-28T02:48:07.24 | 0.6 | negative | manual | P | 130 | 25.5522 | 107 | -0.62 | 43 |
IV.RUFI.EHZ. | 2023-10-28T02:48:07.47 | 0.3 | positive | manual | P | 197 | 24.8529 | 108 | -0.26 | 71 |
IV.SEI.HHZ. | 2023-10-28T02:48:06.43 | 0.1 | positive | manual | P | 271 | 19.2696 | 112 | -0.25 | 96 |
IV.VISG.HHZ. | 2023-10-28T02:48:06.37 | 0.3 | negative | manual | P | 319 | 20.1687 | 112 | -0.47 | 69 |
IV.VMGN.HHZ. | 2023-10-28T02:48:05.53 | 0.1 | positive | manual | P | 207 | 12.0768 | 123 | 0.13 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VMGN.HHE. | ML:1.3 | 0.000264 | 0.42 | AML | other | m | 2023-10-28T02:48:08.45 |
IV.VMGN.HHN. | ML:1.3 | 0.000253 | 0.42 | AML | other | m | 2023-10-28T02:48:08.47 |
IV.SEI.HHE. | ML:1.6 | 0.0003195 | 1.78 | AML | other | m | 2023-10-28T02:48:09.95 |
IV.VISG.HHN. | ML:1.3 | 0.0001525 | 1.08 | AML | other | m | 2023-10-28T02:48:10.00 |
IV.SEI.HHN. | ML:2.0 | 0.0007704999999999999 | 0.34 | AML | other | m | 2023-10-28T02:48:10.30 |
IV.VISG.HHE. | ML:1.0 | 0.00007515 | 1.22 | AML | other | m | 2023-10-28T02:48:11.96 |
IV.SFI.EHE. | ML:1.5 | 0.000202 | 0.16 | AML | other | m | 2023-10-28T02:48:11.37 |
IV.SFI.EHN. | ML:1.5 | 0.0001955 | 0.14 | AML | other | m | 2023-10-28T02:48:11.50 |
IV.RUFI.EHN. | ML:1.5 | 0.000188 | 1.52 | AML | other | m | 2023-10-28T02:48:12.83 |
IV.RUFI.EHE. | ML:0.9 | 0.000052310000000000006 | 0.5 | AML | other | m | 2023-10-28T02:48:12.47 |
IV.MOCL.EHN. | ML:1.7 | 0.0002 | 1.1 | AML | other | m | 2023-10-28T02:48:14.72 |
IV.MOCL.EHE. | ML:1.4 | 0.00010845000000000001 | 0.68 | AML | other | m | 2023-10-28T02:48:15.36 |
IV.CRE.HHE. | ML:1.6 | 0.000094 | 0.2 | AML | other | m | 2023-10-28T02:48:20.87 |
IV.CRE.HHN. | ML:1.6 | 0.000101 | 0.16 | AML | other | m | 2023-10-28T02:48:21.19 |