A magnitude ML 1.5 earthquake occured in region: 9 km SW Marradi (FI), on
and geographic coordinates (lat, lon) 44.0140, 11.5360 at 10 km depth.
The earthquake was located by: Bollettino Sismico Italiano INGV.
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 | 9 | 3139 | 3139 |
Vicchio | FI | 10 | 8044 | 11183 |
Palazzuolo sul Senio | FI | 11 | 1154 | 12337 |
San Godenzo | FI | 12 | 1167 | 13504 |
Borgo San Lorenzo | FI | 14 | 18211 | 31715 |
Dicomano | FI | 14 | 5515 | 37230 |
Firenzuola | FI | 17 | 4726 | 41956 |
Londa | FI | 17 | 1840 | 43796 |
Scarperia e San Piero | FI | 18 | 12217 | 56013 |
Tredozio | FC | 18 | 1212 | 57225 |
Premilcuore | FC | 20 | 799 | 58024 |
Portico e San Benedetto | FC | 20 | 756 | 58780 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.5 | 2021-08-01 12:02:21 |
44.0137 | 11.5363 | 10 | 2021-12-29 11:12:36 |
Bollettino Sismico Italiano INGV | 96387651 |
Reviewed Rev100 |
ML 1.5 | 2021-08-01 12:02:21 |
44.0122 | 11.5457 | 9 | 2021-08-01 12:07:00 |
Sala Sismica INGV-Roma | 93500641 |
Field | Value |
---|---|
Time (UTC) | 2021-08-01 12:02:21 ± 0.06 |
Latitude | 44.0137 ± 0.0036 |
Longitude | 11.5363 ± 0.0038 |
Depth (km) | 10 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 96387651 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 336 |
Semi-minor axis of confidence ellipse (meter) | 271 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 188 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 340.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 70 |
Number of associated phases, regardless of their use for origin computation | 16 |
Number of defining phases | 16 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.19 |
Epicentral distance of station closest to the epicenter (degree) | 0.13400 |
Epicentral distance of station farthest from the epicenter (degree) | 0.32555 |
Number of stations at which the event was observed | 8 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 1.5 |
Uncertainty | 0.2 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 93500641 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-08-01 12:07:00 |
Field | Value |
---|---|
Value | 1.5 |
Uncertainty | 0.2 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 96387651 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-10-09 16:19:59 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.MPPT.EHZ. | 2021-08-01T12:02:33.10 | 0.3 | undecidable | manual | S | 260 | 36.1416 | 50 | -0.38 | 67 |
IV.BRIS.HHZ. | 2021-08-01T12:02:32.33 | 0.6 | undecidable | manual | S | 38 | 29.748 | 50 | 0.56 | 43 |
IV.SFI.EHZ. | 2021-08-01T12:02:31.12 | 0.6 | undecidable | manual | S | 116 | 27.5502 | 50 | -0.07 | 48 |
IV.RUFI.EHZ. | 2021-08-01T12:02:28.63 | 0.6 | undecidable | manual | S | 186 | 19.5693 | 117 | -0.1 | 49 |
IV.VISG.HHZ. | 2021-08-01T12:02:28.93 | 0.1 | undecidable | manual | S | 337 | 21.0678 | 115 | -0.26 | 94 |
IV.MPPT.EHZ. | 2021-08-01T12:02:28.43 | 0.6 | undecidable | manual | P | 260 | 36.1416 | 50 | 0.18 | 47 |
IV.BOSL.HHZ. | 2021-08-01T12:02:27.85 | 0.6 | undecidable | manual | S | 235 | 15.873 | 122 | 0.26 | 48 |
IV.BRIS.HHZ. | 2021-08-01T12:02:27.42 | 0.1 | undecidable | manual | P | 38 | 29.748 | 50 | 0.16 | 95 |
IV.SEI.HHZ. | 2021-08-01T12:02:27.45 | 0.1 | undecidable | manual | S | 288 | 14.874 | 124 | 0.14 | 98 |
IV.LMD.HHZ. | 2021-08-01T12:02:27.37 | 0.3 | undecidable | manual | S | 62 | 15.3735 | 123 | -0.08 | 74 |
IV.SFI.EHZ. | 2021-08-01T12:02:26.78 | 0.1 | negative | manual | P | 116 | 27.5502 | 50 | -0.15 | 95 |
IV.VISG.HHZ. | 2021-08-01T12:02:25.72 | 0.1 | undecidable | manual | P | 337 | 21.0678 | 115 | -0.06 | 98 |
IV.BOSL.HHZ. | 2021-08-01T12:02:25.02 | 0.1 | positive | manual | P | 235 | 15.873 | 122 | 0.17 | 97 |
IV.RUFI.EHZ. | 2021-08-01T12:02:25.46 | 0.1 | positive | manual | P | 186 | 19.5693 | 117 | -0.05 | 99 |
IV.SEI.HHZ. | 2021-08-01T12:02:24.72 | 0.1 | negative | manual | P | 288 | 14.874 | 124 | 0.03 | 100 |
IV.LMD.HHZ. | 2021-08-01T12:02:24.73 | 0.1 | positive | manual | P | 62 | 15.3735 | 123 | -0.04 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.SEI.HHN. | ML:1.8 | 0.0006515 | 0.26 | AML | other | m | 2021-08-01T12:02:27.77 |
IV.LMD.HHN. | ML:2.0 | 0.0008945000000000001 | 0.12 | AML | other | m | 2021-08-01T12:02:27.66 |
IV.LMD.HHE. | ML:1.7 | 0.0005365 | 0.4 | AML | other | m | 2021-08-01T12:02:27.65 |
IV.BOSL.HHE. | ML:1.6 | 0.000395 | 1.72 | AML | other | m | 2021-08-01T12:02:27.98 |
IV.BOSL.HHN. | ML:1.6 | 0.00037050000000000006 | 0.1 | AML | other | m | 2021-08-01T12:02:28.08 |
IV.VISG.HHE. | ML:1.3 | 0.000141 | 0.32 | AML | other | m | 2021-08-01T12:02:29.05 |
IV.VISG.HHN. | ML:1.3 | 0.0001495 | 0.58 | AML | other | m | 2021-08-01T12:02:29.21 |
IV.SEI.HHE. | ML:1.5 | 0.000321 | 0.24 | AML | other | m | 2021-08-01T12:02:29.56 |
IV.SFI.EHN. | ML:1.2 | 0.00009584999999999999 | 0.86 | AML | other | m | 2021-08-01T12:02:31.29 |
IV.SFI.EHE. | ML:1.4 | 0.0001325 | 0.38 | AML | other | m | 2021-08-01T12:02:31.55 |