A magnitude ML 0.9 earthquake occured in region: 8 km SE Marradi (FI), on
and geographic coordinates (lat, lon) 44.0190, 11.6730 at 11 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 | 8 | 3139 | 3139 |
Portico e San Benedetto | FC | 9 | 756 | 3895 |
Tredozio | FC | 9 | 1212 | 5107 |
Premilcuore | FC | 10 | 799 | 5906 |
San Godenzo | FI | 11 | 1167 | 7073 |
Rocca San Casciano | FC | 14 | 1910 | 8983 |
Palazzuolo sul Senio | FI | 15 | 1154 | 10137 |
Modigliana | FC | 18 | 4560 | 14697 |
Dicomano | FI | 19 | 5515 | 20212 |
Vicchio | FI | 19 | 8044 | 28256 |
Galeata | FC | 19 | 2516 | 30772 |
Londa | FI | 20 | 1840 | 32612 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-02-24 03:39:21 |
44.0193 | 11.6733 | 11 | 2021-02-24 03:46:19 |
Sala Sismica INGV-Roma | 87428571 |
Field | Value |
---|---|
Time (UTC) | 2021-02-24 03:39:21 ± 0.09 |
Latitude | 44.0193 ± 0.0081 |
Longitude | 11.6733 ± 0.0075 |
Depth (km) | 11 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 87428571 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 900 |
Semi-minor axis of confidence ellipse (meter) | 557 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 176 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 900.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 109 |
Number of associated phases, regardless of their use for origin computation | 13 |
Number of defining phases | 13 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.2 |
Epicentral distance of station closest to the epicenter (degree) | 0.06295 |
Epicentral distance of station farthest from the epicenter (degree) | 0.24102 |
Number of stations at which the event was observed | 7 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.4 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 87428571 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-02-24 03:46:19 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.SEI.HHN. | 2021-02-24T03:39:30.47 | 0.6 | undecidable | manual | S | 279 | 25.3524 | 50 | -0.01 | 52 |
IV.BRIS.HHZ. | 2021-02-24T03:39:30.50 | 0.6 | undecidable | manual | S | 18 | 23.9538 | 50 | 0.41 | 48 |
IV.VISG.HHZ. | 2021-02-24T03:39:30.76 | 0.6 | undecidable | manual | S | 315 | 26.751 | 50 | -0.08 | 51 |
IV.RONT.HHZ. | 2021-02-24T03:39:29.07 | 0.6 | undecidable | manual | S | 262 | 19.3695 | 50 | 0.2 | 50 |
IV.SFI.EHZ. | 2021-02-24T03:39:28.71 | 0.6 | undecidable | manual | S | 132 | 18.7701 | 50 | -0.01 | 53 |
IV.RINC.HHZ. | 2021-02-24T03:39:27.90 | 0.6 | undecidable | manual | S | 200 | 15.6732 | 125 | 0.05 | 52 |
IV.BRIS.HHZ. | 2021-02-24T03:39:26.40 | 0.6 | undecidable | manual | P | 18 | 23.9538 | 50 | 0.06 | 52 |
IV.VISG.HHZ. | 2021-02-24T03:39:26.67 | 1.0 | undecidable | manual | P | 315 | 26.751 | 50 | -0.1 | 26 |
IV.SEI.HHN. | 2021-02-24T03:39:26.29 | 0.1 | undecidable | manual | P | 279 | 25.3524 | 50 | -0.27 | 99 |
IV.RINC.HHZ. | 2021-02-24T03:39:25.17 | 0.6 | undecidable | manual | P | 200 | 15.6732 | 125 | 0.12 | 51 |
IV.SFI.EHZ. | 2021-02-24T03:39:25.58 | 1.0 | undecidable | manual | P | 132 | 18.7701 | 50 | 0.03 | 26 |
IV.RONT.HHZ. | 2021-02-24T03:39:25.85 | 0.1 | negative | manual | P | 262 | 19.3695 | 50 | 0.21 | 100 |
IV.LMD.HHZ. | 2021-02-24T03:39:22.98 | 1.0 | undecidable | manual | P | 23 | 6.993 | 148 | -0.84 | 23 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.RONT.HHE. | ML:1.2 | 0.0001199 | 0.72 | AML | other | m | 2021-02-24T03:39:29.76 |
IV.SFI.EHN. | ML:0.7 | 0.0000371 | 0.14 | AML | other | m | 2021-02-24T03:39:29.40 |
IV.RONT.HHN. | ML:1.2 | 0.00010899999999999999 | 1.58 | AML | other | m | 2021-02-24T03:39:29.09 |
IV.SFI.EHE. | ML:0.5 | 0.000023899999999999998 | 0.52 | AML | other | m | 2021-02-24T03:39:34.29 |
IV.RINC.HHE. | ML:0.4 | 0.00002244361 | 0.1008 | AML | other | m | 2021-02-24T03:39:28.09 |
IV.RINC.HHN. | ML:0.4 | 0.000023976182000000003 | 2.44 | AML | other | m | 2021-02-24T03:39:29.26 |
IV.SFI.HNE. | ML:1.1 | 0.00008958680499999999 | 3.2992 | AML | other | m | 2021-02-24T03:39:28.72 |
IV.SFI.HNN. | ML:1.2 | 0.000118132035 | 2.4496 | AML | other | m | 2021-02-24T03:39:29.81 |
IV.BRIS.HNE. | ML:1.3 | 0.00011449100000000001 | 2.4496 | AML | other | m | 2021-02-24T03:39:31.80 |
IV.BRIS.HNN. | ML:2.0 | 0.0006883733 | 2.0896 | AML | other | m | 2021-02-24T03:39:31.24 |
IV.BRIS.HHE. | ML:0.9 | 0.000051353574999999994 | 0.4 | AML | other | m | 2021-02-24T03:39:34.64 |
IV.BRIS.HHN. | ML:1.0 | 0.000058298165 | 0.3392 | AML | other | m | 2021-02-24T03:39:31.41 |
IV.VISG.HHE. | ML:0.4 | 0.000016771164999999997 | 3.52 | AML | other | m | 2021-02-24T03:39:31.26 |
IV.VISG.HHN. | ML:0.8 | 0.000028294165 | 3.8992 | AML | other | m | 2021-02-24T03:39:31.00 |