A magnitude ML 0.5 earthquake occured in region: 5 km SE Marradi (FI), on
and geographic coordinates (lat, lon) 44.0550, 11.6640 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 | 5 | 3139 | 3139 |
Tredozio | FC | 7 | 1212 | 4351 |
Portico e San Benedetto | FC | 10 | 756 | 5107 |
Palazzuolo sul Senio | FI | 11 | 1154 | 6261 |
Premilcuore | FC | 13 | 799 | 7060 |
Rocca San Casciano | FC | 14 | 1910 | 8970 |
San Godenzo | FI | 15 | 1167 | 10137 |
Modigliana | FC | 15 | 4560 | 14697 |
Casola Valsenio | RA | 19 | 2617 | 17314 |
Dovadola | FC | 20 | 1653 | 18967 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.5 | 2023-09-18 17:07:44 |
44.0547 | 11.6637 | 7 | 2023-09-18 17:13:48 |
Sala Sismica INGV-Roma | 121199391 |
Field | Value |
---|---|
Time (UTC) | 2023-09-18 17:07:44 ± 0.14 |
Latitude | 44.0547 ± 0.0036 |
Longitude | 11.6637 ± 0.0063 |
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 | 121199391 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 514 |
Semi-minor axis of confidence ellipse (meter) | 191 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 121 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 510.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 111 |
Number of associated phases, regardless of their use for origin computation | 17 |
Number of defining phases | 14 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.18 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.24372 |
Number of stations at which the event was observed | 11 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 0.5 |
Uncertainty | 0.0 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 121199391 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-18 17:13:48 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.PESA.HHE. | 2023-09-18T17:08:15.55 | 3.0 | undecidable | manual | S | 1.01 | 0 | |||
GU.GSCL.HHN. | 2023-09-18T17:08:02.29 | 3.0 | undecidable | manual | P | 2.51 | 0 | |||
IV.RSM2.HHE. | 2023-09-18T17:07:55.83 | 3.0 | negative | manual | P | -0.11 | 0 | |||
IV.RINC.EHZ. | 2023-09-18T17:07:52.07 | 0.3 | undecidable | manual | S | 194 | 19.1697 | 109 | 0.17 | 71 |
IV.SFI.EHZ. | 2023-09-18T17:07:52.83 | 0.6 | undecidable | manual | S | 139 | 22.1556 | 107 | -0.04 | 48 |
IV.RUFI.EHZ. | 2023-09-18T17:07:50.09 | 0.6 | positive | manual | P | 207 | 27.0507 | 104 | -0.33 | 45 |
IT.MOG.HNZ. | 2023-09-18T17:07:50.98 | 0.3 | undecidable | manual | S | 33 | 15.2736 | 113 | 0.37 | 68 |
IV.VMGN.HHZ. | 2023-09-18T17:07:50.95 | 0.6 | undecidable | manual | S | 223 | 15.2736 | 113 | 0.33 | 46 |
IV.SFI.EHZ. | 2023-09-18T17:07:49.29 | 1.0 | undecidable | manual | P | 139 | 22.1556 | 107 | -0.19 | 23 |
IV.SEI.HHZ. | 2023-09-18T17:07:49.57 | 0.6 | negative | manual | P | 270 | 24.3534 | 105 | -0.33 | 45 |
IV.RINC.EHZ. | 2023-09-18T17:07:49.01 | 1.0 | undecidable | manual | P | 194 | 19.1697 | 109 | 0.09 | 24 |
IT.MOG.HNZ. | 2023-09-18T17:07:48.19 | 0.1 | undecidable | manual | P | 33 | 15.2736 | 113 | 0.01 | 98 |
IV.VMGN.HHZ. | 2023-09-18T17:07:48.31 | 0.6 | positive | manual | P | 223 | 15.2736 | 113 | 0.13 | 48 |
IV.LMD.HHZ. | 2023-09-18T17:07:47.44 | 0.3 | undecidable | manual | S | 54 | 4.2957 | 147 | -0.14 | 73 |
IT.MRR.HGZ. | 2023-09-18T17:07:47.68 | 0.6 | undecidable | manual | S | 282 | 4.8951 | 143 | -0.03 | 50 |
IV.LMD.HHZ. | 2023-09-18T17:07:46.29 | 0.1 | undecidable | manual | P | 54 | 4.2957 | 147 | -0.14 | 97 |
IT.MRR.HGZ. | 2023-09-18T17:07:46.50 | 0.1 | undecidable | manual | P | 282 | 4.8951 | 143 | 0 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VMGN.HHE. | ML:0.5 | 0.00002975 | 0.34 | AML | other | m | 2023-09-18T17:07:51.19 |
IV.VMGN.HHN. | ML:0.5 | 0.0000279 | 0.18 | AML | other | m | 2023-09-18T17:07:51.21 |