A magnitude ML 0.9 earthquake occured in region: 2 km E Marradi (FI), on
and geographic coordinates (lat, lon) 44.0710, 11.6380 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 | 2 | 3139 | 3139 |
Tredozio | FC | 9 | 1212 | 4351 |
Palazzuolo sul Senio | FI | 9 | 1154 | 5505 |
Portico e San Benedetto | FC | 13 | 756 | 6261 |
Premilcuore | FC | 15 | 799 | 7060 |
Modigliana | FC | 16 | 4560 | 11620 |
San Godenzo | FI | 16 | 1167 | 12787 |
Rocca San Casciano | FC | 16 | 1910 | 14697 |
Casola Valsenio | RA | 17 | 2617 | 17314 |
Castel del Rio | BO | 19 | 1246 | 18560 |
Brisighella | RA | 20 | 7639 | 26199 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2023-10-28 05:11:51 |
44.0707 | 11.6385 | 10 | 2023-10-28 05:16:49 |
Sala Sismica INGV-Roma | 122495241 |
Field | Value |
---|---|
Time (UTC) | 2023-10-28 05:11:51 ± 0.09 |
Latitude | 44.0707 ± 0.0045 |
Longitude | 11.6385 ± 0.0038 |
Depth (km) | 10 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 122495241 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 481 |
Semi-minor axis of confidence ellipse (meter) | 285 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 358 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 480.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 177 |
Number of associated phases, regardless of their use for origin computation | 14 |
Number of defining phases | 8 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.11 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.25001 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 4 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.3 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 122495241 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-10-28 05:16:49 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.PZUN.HHZ. | 2023-10-28T05:13:43.74 | 3.0 | undecidable | manual | Sn | -3.66 | 0 | |||
GU.SATI.HHZ. | 2023-10-28T05:13:33.78 | 3.0 | undecidable | manual | Sg | 16.780001 | 0 | |||
IT.LRNO.HNZ. | 2023-10-28T05:13:28.36 | 3.0 | undecidable | manual | Sg | 13.43 | 0 | |||
GU.SATI.HHZ. | 2023-10-28T05:12:43.24 | 3.0 | undecidable | manual | Pn | 6.66 | 0 | |||
IV.CASP.HHZ. | 2023-10-28T05:12:38.04 | 3.0 | undecidable | manual | Sg | 0.13 | 0 | |||
IV.FRON.EHZ. | 2023-10-28T05:12:04.67 | 3.0 | undecidable | manual | P | 1.54 | 0 | |||
IV.RUFI.EHZ. | 2023-10-28T05:12:01.45 | 0.1 | undecidable | manual | S | 202 | 27.75 | 50 | -0.02 | 97 |
IV.SEI.HHZ. | 2023-10-28T05:11:59.77 | 0.1 | undecidable | manual | S | 265 | 22.3554 | 114 | -0.03 | 97 |
IV.RUFI.EHZ. | 2023-10-28T05:11:57.10 | 1.0 | negative | manual | P | 202 | 27.75 | 50 | -0.08 | 24 |
IV.VMGN.HHZ. | 2023-10-28T05:11:57.62 | 0.1 | undecidable | manual | S | 213 | 15.3735 | 123 | -0.04 | 98 |
IV.SEI.HHZ. | 2023-10-28T05:11:56.24 | 0.3 | positive | manual | P | 265 | 22.3554 | 114 | 0.02 | 73 |
IV.VMGN.HHZ. | 2023-10-28T05:11:55.26 | 0.6 | undecidable | manual | P | 213 | 15.3735 | 123 | 0.28 | 47 |
IV.LMD.HHZ. | 2023-10-28T05:11:55.19 | 0.1 | undecidable | manual | S | 82 | 5.4945 | 151 | -0.04 | 100 |
IV.LMD.HHZ. | 2023-10-28T05:11:53.65 | 1.0 | undecidable | manual | P | 82 | 5.4945 | 151 | 0.07 | 25 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LMD.HHN. | ML:1.3 | 0.00035150000000000003 | 0.12 | AML | other | m | 2023-10-28T05:11:55.23 |
IV.LMD.HHE. | ML:0.9 | 0.00014500000000000003 | 0.26 | AML | other | m | 2023-10-28T05:11:55.35 |
IV.VMGN.HHE. | ML:0.6 | 0.0000363 | 1.52 | AML | other | m | 2023-10-28T05:11:58.17 |
IV.VMGN.HHN. | ML:0.8 | 0.00005875 | 0.66 | AML | other | m | 2023-10-28T05:12:00.46 |