A magnitude ML 0.9 earthquake occured in region: 4 km SW Palazzuolo sul Senio (FI), on
and geographic coordinates (lat, lon) 44.0920, 11.5020 at 8 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 |
---|---|---|---|---|
Palazzuolo sul Senio | FI | 4 | 1154 | 1154 |
Marradi | FI | 9 | 3139 | 4293 |
Firenzuola | FI | 10 | 4726 | 9019 |
Castel del Rio | BO | 14 | 1246 | 10265 |
Borgo San Lorenzo | FI | 18 | 18211 | 28476 |
Vicchio | FI | 18 | 8044 | 36520 |
Casola Valsenio | RA | 18 | 2617 | 39137 |
Fontanelice | BO | 19 | 1943 | 41080 |
Tredozio | FC | 19 | 1212 | 42292 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-05-29 02:04:31 |
44.0918 | 11.5017 | 8 | 2021-05-29 02:10:40 |
Sala Sismica INGV-Roma | 90588531 |
Field | Value |
---|---|
Time (UTC) | 2021-05-29 02:04:31 ± 0.08 |
Latitude | 44.0918 ± 0.0045 |
Longitude | 11.5017 ± 0.0050 |
Depth (km) | 8 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 90588531 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 430 |
Semi-minor axis of confidence ellipse (meter) | 404 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 325 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 430.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 84 |
Number of associated phases, regardless of their use for origin computation | 17 |
Number of defining phases | 17 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.21 |
Epicentral distance of station closest to the epicenter (degree) | 0.10792 |
Epicentral distance of station farthest from the epicenter (degree) | 0.36063 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.2 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 90588531 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-05-29 02:10:40 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ASQU.HHN. | 2021-05-29T02:04:45.94 | 0.6 | undecidable | manual | S | 145 | 40.0266 | 50 | 0.42 | 44 |
IV.SFI.EHZ. | 2021-05-29T02:04:43.89 | 0.3 | undecidable | manual | S | 127 | 34.5432 | 50 | -0.16 | 71 |
IV.BRIS.HHE. | 2021-05-29T02:04:41.79 | 0.6 | undecidable | manual | S | 55 | 25.6521 | 108 | 0.63 | 43 |
IV.MOCL.EHZ. | 2021-05-29T02:04:41.89 | 0.6 | undecidable | manual | S | 249 | 27.3504 | 107 | 0.18 | 48 |
IV.RUFI.EHZ. | 2021-05-29T02:04:41.98 | 0.6 | undecidable | manual | S | 179 | 28.1496 | 107 | 0 | 49 |
IV.ASQU.HHN. | 2021-05-29T02:04:39.56 | 0.1 | undecidable | manual | P | 145 | 40.0266 | 50 | -0.15 | 94 |
IV.LMD.HHZ. | 2021-05-29T02:04:38.19 | 0.6 | undecidable | manual | S | 96 | 16.4724 | 117 | 0 | 51 |
IV.SFI.EHZ. | 2021-05-29T02:04:38.91 | 1.0 | positive | manual | P | 127 | 34.5432 | 50 | 0.05 | 24 |
IV.RUFI.EHZ. | 2021-05-29T02:04:37.58 | 1.0 | positive | manual | P | 179 | 28.1496 | 107 | -0.09 | 24 |
IV.BRIS.HHE. | 2021-05-29T02:04:37.16 | 0.1 | undecidable | manual | P | 55 | 25.6521 | 108 | -0.04 | 99 |
IV.MOCL.EHZ. | 2021-05-29T02:04:37.38 | 0.1 | undecidable | manual | P | 249 | 27.3504 | 107 | -0.14 | 96 |
IV.MTRZ.HNN. | 2021-05-29T02:04:37.42 | 0.1 | undecidable | manual | P | 346 | 25.2525 | 108 | 0.31 | 93 |
IV.SEI.HHZ. | 2021-05-29T02:04:37.19 | 0.6 | undecidable | manual | S | 250 | 12.1767 | 125 | 0.28 | 48 |
IV.VISG.HHZ. | 2021-05-29T02:04:36.50 | 0.6 | undecidable | manual | S | 334 | 11.9769 | 125 | -0.37 | 47 |
IV.LMD.HHZ. | 2021-05-29T02:04:35.29 | 0.1 | undecidable | manual | P | 96 | 16.4724 | 117 | -0.19 | 97 |
IV.VISG.HHZ. | 2021-05-29T02:04:34.46 | 0.1 | undecidable | manual | P | 334 | 11.9769 | 125 | -0.26 | 97 |
IV.SEI.HHZ. | 2021-05-29T02:04:34.83 | 0.1 | positive | manual | P | 250 | 12.1767 | 125 | 0.09 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VISG.HHN. | ML:1.1 | 0.00013900000000000002 | 0.36 | AML | other | m | 2021-05-29T02:04:36.68 |
IV.VISG.HHE. | ML:0.8 | 0.0000873 | 0.42 | AML | other | m | 2021-05-29T02:04:36.76 |
IV.LMD.HHN. | ML:0.7 | 0.00005235 | 0.48 | AML | other | m | 2021-05-29T02:04:38.34 |
IV.SEI.HHN. | ML:1.2 | 0.000194 | 0.26 | AML | other | m | 2021-05-29T02:04:38.89 |
IV.SEI.HHE. | ML:1.1 | 0.0001375 | 0.36 | AML | other | m | 2021-05-29T02:04:39.47 |
IV.LMD.HHE. | ML:0.7 | 0.000045600000000000004 | 0.74 | AML | other | m | 2021-05-29T02:04:40.16 |
IV.MOCL.EHN. | ML:0.7 | 0.00003052 | 0.86 | AML | other | m | 2021-05-29T02:04:42.49 |
IV.MOCL.EHE. | ML:0.8 | 0.000034250000000000006 | 0.14 | AML | other | m | 2021-05-29T02:04:42.71 |