A magnitude ML 0.5 earthquake occured in region: 2 km S Marradi (FI), on
and geographic coordinates (lat, lon) 44.0600, 11.6140 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 | 11 | 1212 | 5505 |
Portico e San Benedetto | FC | 14 | 756 | 6261 |
San Godenzo | FI | 15 | 1167 | 7428 |
Premilcuore | FC | 16 | 799 | 8227 |
Modigliana | FC | 18 | 4560 | 12787 |
Vicchio | FI | 18 | 8044 | 20831 |
Rocca San Casciano | FC | 18 | 1910 | 22741 |
Casola Valsenio | RA | 18 | 2617 | 25358 |
Castel del Rio | BO | 19 | 1246 | 26604 |
Firenzuola | FI | 20 | 4726 | 31330 |
Dicomano | FI | 20 | 5515 | 36845 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.5 | 2023-09-18 22:25:02 |
44.0602 | 11.6145 | 8 | 2023-09-18 22:36:02 |
Sala Sismica INGV-Roma | 121210381 |
Field | Value |
---|---|
Time (UTC) | 2023-09-18 22:25:02 ± 0.3 |
Latitude | 44.0602 ± 0.0081 |
Longitude | 11.6145 ± 0.0113 |
Depth (km) | 8 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 121210381 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 961 |
Semi-minor axis of confidence ellipse (meter) | 377 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 320 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 960.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 137 |
Number of associated phases, regardless of their use for origin computation | 12 |
Number of defining phases | 9 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.27 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.18436 |
Number of stations at which the event was observed | 8 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 0.5 |
Uncertainty | 0.2 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 121210381 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-18 22:36:02 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ARVD.HHZ. | 2023-09-18T22:25:15.06 | 3.0 | undecidable | manual | P | -1.52 | 0 | |||
IV.CPGN.EHZ. | 2023-09-18T22:25:14.72 | 3.0 | undecidable | manual | S | 0.03 | 0 | |||
IV.SEI.HHZ. | 2023-09-18T22:25:09.25 | 0.6 | undecidable | manual | S | 268 | 20.4684 | 111 | -0.53 | 45 |
IV.RINC.EHZ. | 2023-09-18T22:25:09.38 | 0.6 | undecidable | manual | S | 182 | 19.2696 | 112 | -0.02 | 51 |
IV.SEI.HHZ. | 2023-09-18T22:25:07.07 | 0.3 | undecidable | manual | P | 268 | 20.4684 | 111 | 0.5 | 68 |
IV.VMGN.HHZ. | 2023-09-18T22:25:07.82 | 0.6 | undecidable | manual | S | 209 | 13.3755 | 120 | 0.24 | 49 |
IV.RINC.EHZ. | 2023-09-18T22:25:06.20 | 0.1 | undecidable | manual | P | 182 | 19.2696 | 112 | -0.16 | 98 |
IV.LMD.HHZ. | 2023-09-18T22:25:05.94 | 0.6 | undecidable | manual | S | 75 | 7.6812 | 136 | -0.05 | 51 |
IV.VMGN.HHZ. | 2023-09-18T22:25:05.21 | 0.6 | positive | manual | P | 209 | 13.3755 | 120 | -0.09 | 50 |
IT.MOG.HNZ. | 2023-09-18T22:25:05.89 | 0.1 | undecidable | manual | P | 45 | 17.2716 | 114 | -0.09 | 100 |
IV.LMD.HHZ. | 2023-09-18T22:25:04.54 | 0.3 | undecidable | manual | P | 75 | 7.6812 | 136 | 0.16 | 75 |
IV.BRSN.EHZ. | 2023-09-18T22:24:59.67 | 3.0 | undecidable | manual | P | 0 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LMD.HHN. | ML:0.6 | 0.0000662 | 0.28 | AML | other | m | 2023-09-18T22:25:06.02 |
IV.LMD.HHE. | ML:0.4 | 0.00004697706 | 0.3072 | AML | other | m | 2023-09-18T22:25:05.00 |
IV.RINC.EHE. | ML:0.4 | 0.000019297146 | 0.1792 | AML | other | m | 2023-09-18T22:25:10.04 |
IV.RINC.EHN. | ML:0.3 | 0.000016101899 | 0.8448 | AML | other | m | 2023-09-18T22:25:19.49 |
IV.SEI.HHE. | ML:0.6 | 0.000029803514999999998 | 0.4224 | AML | other | m | 2023-09-18T22:25:14.15 |
IV.SEI.HHN. | ML:0.7 | 0.000036849805 | 0.4224 | AML | other | m | 2023-09-18T22:25:10.85 |