A magnitude ML 1.4 earthquake occured in region: 1 km SE Marradi (FI), on
and geographic coordinates (lat, lon) 44.0700, 11.6240 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 | 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 | 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 1.4 | 2023-09-18 03:41:11 |
44.0705 | 11.6237 | 10 | 2023-09-18 04:03:58 |
Sala Sismica INGV-Roma | 121154381 |
Field | Value |
---|---|
Time (UTC) | 2023-09-18 03:41:11 ± 0.1 |
Latitude | 44.0705 ± 0.0045 |
Longitude | 11.6237 ± 0.0063 |
Depth (km) | 10 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 121154381 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 555 |
Semi-minor axis of confidence ellipse (meter) | 65 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 228 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 550.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 166 |
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) | 0.21 |
Epicentral distance of station closest to the epicenter (degree) | 0.13310 |
Epicentral distance of station farthest from the epicenter (degree) | 0.32466 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 1.4 |
Uncertainty | 0.3 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 121154381 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-18 04:03:58 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.RUFI.EHZ. | 2023-09-18T03:41:21.25 | 0.1 | undecidable | manual | S | 200 | 27.3504 | 50 | -0.07 | 99 |
IV.BOSL.HHZ. | 2023-09-18T03:41:20.81 | 0.3 | undecidable | manual | S | 232 | 25.2525 | 111 | 0.14 | 73 |
IV.SFI.EHZ. | 2023-09-18T03:41:20.86 | 0.1 | undecidable | manual | S | 136 | 25.5522 | 111 | 0.07 | 99 |
IV.SEI.HHZ. | 2023-09-18T03:41:19.35 | 0.3 | undecidable | manual | S | 265 | 21.2676 | 115 | -0.04 | 76 |
IV.RINC.EHZ. | 2023-09-18T03:41:19.33 | 0.3 | undecidable | manual | S | 184 | 20.4684 | 116 | 0.18 | 74 |
IV.VISG.HHZ. | 2023-09-18T03:41:18.91 | 0.3 | undecidable | manual | S | 311 | 19.9689 | 116 | -0.1 | 75 |
IV.MOCL.EHZ. | 2023-09-18T03:41:18.42 | 0.1 | undecidable | manual | P | 259 | 36.0417 | 50 | 0 | 99 |
IV.MTRZ.HNN. | 2023-09-18T03:41:18.38 | 0.3 | undecidable | manual | P | 330 | 31.1466 | 50 | 0.71 | 62 |
IV.VMGN.HHZ. | 2023-09-18T03:41:17.56 | 0.3 | undecidable | manual | S | 209 | 14.7741 | 124 | 0.13 | 75 |
IV.SFI.EHZ. | 2023-09-18T03:41:16.54 | 0.1 | undecidable | manual | P | 136 | 25.5522 | 111 | -0.23 | 96 |
IV.RUFI.EHZ. | 2023-09-18T03:41:16.84 | 0.1 | undecidable | manual | P | 200 | 27.3504 | 50 | -0.24 | 96 |
IV.BOSL.HHZ. | 2023-09-18T03:41:16.66 | 0.1 | undecidable | manual | P | 232 | 25.2525 | 111 | -0.04 | 100 |
IV.RINC.EHZ. | 2023-09-18T03:41:15.88 | 0.3 | undecidable | manual | P | 184 | 20.4684 | 116 | 0.05 | 75 |
IV.VISG.HHZ. | 2023-09-18T03:41:15.63 | 0.1 | undecidable | manual | P | 311 | 19.9689 | 116 | -0.11 | 99 |
IV.SEI.HHZ. | 2023-09-18T03:41:15.78 | 0.1 | undecidable | manual | P | 265 | 21.2676 | 115 | -0.18 | 98 |
IV.VMGN.HHZ. | 2023-09-18T03:41:14.93 | 0.3 | undecidable | manual | P | 209 | 14.7741 | 124 | 0.1 | 75 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VMGN.HHE. | ML:1.2 | 0.00017649999999999998 | 0.46 | AML | other | m | 2023-09-18T03:41:21.47 |
IV.VISG.HHE. | ML:1.2 | 0.00010714999999999999 | 0.54 | AML | other | m | 2023-09-18T03:41:22.53 |
IV.VISG.HHN. | ML:1.2 | 0.0001265 | 0.1 | AML | other | m | 2023-09-18T03:41:23.11 |
IV.SEI.HHE. | ML:1.8 | 0.0004895 | 0.4 | AML | other | m | 2023-09-18T03:41:23.18 |
IV.SEI.HHN. | ML:2.2 | 0.001042 | 0.2 | AML | other | m | 2023-09-18T03:41:23.34 |
IV.VMGN.HHN. | ML:1.2 | 0.000143 | 0.3 | AML | other | m | 2023-09-18T03:41:23.51 |
IV.SFI.EHN. | ML:1.4 | 0.0001555 | 0.2 | AML | other | m | 2023-09-18T03:41:24.46 |
IV.SFI.EHE. | ML:1.5 | 0.0002 | 0.6 | AML | other | m | 2023-09-18T03:41:24.57 |
IV.MOCL.EHN. | ML:1.6 | 0.00014050000000000003 | 0.14 | AML | other | m | 2023-09-18T03:41:28.21 |
IV.MOCL.EHE. | ML:1.5 | 0.000133 | 0.14 | AML | other | m | 2023-09-18T03:41:28.43 |