A magnitude ML 0.5 earthquake occured in region: 5 km E Marradi (FI), on
and geographic coordinates (lat, lon) 44.0760, 11.6730 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 | 5 | 3139 | 3139 |
Tredozio | FC | 6 | 1212 | 4351 |
Portico e San Benedetto | FC | 10 | 756 | 5107 |
Palazzuolo sul Senio | FI | 11 | 1154 | 6261 |
Modigliana | FC | 13 | 4560 | 10821 |
Rocca San Casciano | FC | 14 | 1910 | 12731 |
Premilcuore | FC | 14 | 799 | 13530 |
Casola Valsenio | RA | 17 | 2617 | 16147 |
San Godenzo | FI | 17 | 1167 | 17314 |
Brisighella | RA | 18 | 7639 | 24953 |
Dovadola | FC | 18 | 1653 | 26606 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.5 | 2023-09-22 00:17:23 |
44.0763 | 11.673 | 10 | 2023-09-22 00:23:49 |
Sala Sismica INGV-Roma | 121332791 |
Field | Value |
---|---|
Time (UTC) | 2023-09-22 00:17:23 ± 0.16 |
Latitude | 44.0763 ± 0.0072 |
Longitude | 11.6730 ± 0.0100 |
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 | 121332791 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 945 |
Semi-minor axis of confidence ellipse (meter) | 567 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 44 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 950.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 145 |
Number of associated phases, regardless of their use for origin computation | 12 |
Number of defining phases | 10 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.22 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.26530 |
Number of stations at which the event was observed | 7 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 0.5 |
Uncertainty | 0.0 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 121332791 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-22 00:23:49 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.GSCL.HHZ. | 2023-09-22T00:17:56.06 | 3.0 | undecidable | manual | S | 0.73 | 0 | |||
IV.ZCCA.HNZ. | 2023-09-22T00:17:36.91 | 3.0 | undecidable | manual | P | -0.08 | 0 | |||
IV.RUFI.EHZ. | 2023-09-22T00:17:34.11 | 0.6 | undecidable | manual | S | 206 | 29.4483 | 50 | -0.26 | 46 |
IV.VISG.HHZ. | 2023-09-22T00:17:32.33 | 0.6 | undecidable | manual | S | 303 | 22.755 | 113 | 0.1 | 48 |
IV.SFI.EHZ. | 2023-09-22T00:17:32.86 | 0.6 | undecidable | manual | S | 144 | 23.5542 | 112 | 0.36 | 45 |
IV.VMGN.HHZ. | 2023-09-22T00:17:30.53 | 0.6 | undecidable | manual | S | 220 | 17.5713 | 118 | -0.07 | 49 |
IV.RUFI.EHZ. | 2023-09-22T00:17:29.73 | 0.3 | positive | manual | P | 206 | 29.4483 | 50 | -0.13 | 71 |
IV.VISG.HHZ. | 2023-09-22T00:17:28.80 | 0.3 | positive | manual | P | 303 | 22.755 | 113 | 0.18 | 71 |
IV.SFI.EHZ. | 2023-09-22T00:17:28.97 | 0.6 | positive | manual | P | 144 | 23.5542 | 112 | 0.2 | 47 |
IV.VMGN.HHZ. | 2023-09-22T00:17:27.89 | 0.6 | undecidable | manual | P | 220 | 17.5713 | 118 | 0.21 | 47 |
IV.LMD.HHZ. | 2023-09-22T00:17:26.62 | 0.6 | undecidable | manual | S | 88 | 2.6973 | 164 | -0.48 | 46 |
IV.LMD.HHZ. | 2023-09-22T00:17:25.59 | 0.1 | undecidable | manual | P | 88 | 2.6973 | 164 | -0.07 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VISG.HHE. | ML:0.5 | 0.00002065 | 0.3 | AML | other | m | 2023-09-22T00:17:32.68 |
IV.VISG.HHN. | ML:0.5 | 0.00002155 | 0.46 | AML | other | m | 2023-09-22T00:17:33.62 |