A magnitude ML 0.7 earthquake occured in region: 3 km E Marradi (FI), on
and geographic coordinates (lat, lon) 44.0760, 11.6570 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 | 3 | 3139 | 3139 |
Tredozio | FC | 7 | 1212 | 4351 |
Palazzuolo sul Senio | FI | 10 | 1154 | 5505 |
Portico e San Benedetto | FC | 11 | 756 | 6261 |
Modigliana | FC | 14 | 4560 | 10821 |
Premilcuore | FC | 15 | 799 | 11620 |
Rocca San Casciano | FC | 15 | 1910 | 13530 |
San Godenzo | FI | 17 | 1167 | 14697 |
Casola Valsenio | RA | 17 | 2617 | 17314 |
Brisighella | RA | 19 | 7639 | 24953 |
Dovadola | FC | 19 | 1653 | 26606 |
Castel del Rio | BO | 20 | 1246 | 27852 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.7 | 2023-09-21 21:40:45 |
44.0755 | 11.6567 | 7 | 2023-09-21 21:44:47 |
Sala Sismica INGV-Roma | 121325051 |
Field | Value |
---|---|
Time (UTC) | 2023-09-21 21:40:45 ± 0.11 |
Latitude | 44.0755 ± 0.0027 |
Longitude | 11.6567 ± 0.0038 |
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 | 121325051 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 330 |
Semi-minor axis of confidence ellipse (meter) | 177 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 212 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 330.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 142 |
Number of associated phases, regardless of their use for origin computation | 12 |
Number of defining phases | 12 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.1 |
Epicentral distance of station closest to the epicenter (degree) | 0.03597 |
Epicentral distance of station farthest from the epicenter (degree) | 0.21854 |
Number of stations at which the event was observed | 6 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 0.7 |
Uncertainty | 0.2 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 121325051 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-21 21:44:47 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.VISG.HHZ. | 2023-09-21T21:40:53.16 | 0.6 | undecidable | manual | S | 305 | 21.7671 | 108 | 0.16 | 49 |
IV.SFI.EHZ. | 2023-09-21T21:40:53.99 | 0.6 | undecidable | manual | S | 141 | 24.2535 | 106 | 0.15 | 49 |
IV.SEI.HHZ. | 2023-09-21T21:40:53.60 | 0.6 | undecidable | manual | S | 264 | 23.8539 | 106 | -0.11 | 50 |
IV.RINC.EHZ. | 2023-09-21T21:40:52.70 | 0.6 | undecidable | manual | S | 191 | 21.3675 | 108 | -0.17 | 49 |
IV.VMGN.HHZ. | 2023-09-21T21:40:51.50 | 0.6 | undecidable | manual | S | 216 | 16.6722 | 113 | 0.14 | 50 |
IV.SFI.EHZ. | 2023-09-21T21:40:50.08 | 0.1 | undecidable | manual | P | 141 | 24.2535 | 106 | -0.06 | 100 |
IV.SEI.HHZ. | 2023-09-21T21:40:49.88 | 0.6 | negative | manual | P | 264 | 23.8539 | 106 | -0.18 | 49 |
IV.VISG.HHZ. | 2023-09-21T21:40:49.64 | 0.6 | undecidable | manual | P | 305 | 21.7671 | 108 | -0.01 | 51 |
IV.RINC.EHZ. | 2023-09-21T21:40:49.68 | 1.0 | positive | manual | P | 191 | 21.3675 | 108 | 0.1 | 25 |
IV.VMGN.HHZ. | 2023-09-21T21:40:48.87 | 0.6 | positive | manual | P | 216 | 16.6722 | 113 | 0.17 | 50 |
IV.LMD.HHZ. | 2023-09-21T21:40:47.82 | 0.6 | undecidable | manual | S | 87 | 3.996 | 150 | -0.06 | 52 |
IV.LMD.HHZ. | 2023-09-21T21:40:46.72 | 1.0 | undecidable | manual | P | 87 | 3.996 | 150 | 0.02 | 26 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.SFI.EHE. | ML:0.8 | 0.00004745 | 0.42 | AML | other | m | 2023-09-21T21:40:52.91 |
IV.SFI.EHN. | ML:0.9 | 0.0000501 | 0.42 | AML | other | m | 2023-09-21T21:40:52.75 |
IV.VISG.HHE. | ML:0.5 | 0.00002555 | 0.16 | AML | other | m | 2023-09-21T21:40:53.37 |
IV.VISG.HHN. | ML:0.6 | 0.00003245 | 0.5 | AML | other | m | 2023-09-21T21:40:53.55 |