A magnitude ML 1.2 earthquake occured in region: 4 km W Palazzuolo sul Senio (FI), on
and geographic coordinates (lat, lon) 44.1300, 11.5020 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 |
---|---|---|---|---|
Palazzuolo sul Senio | FI | 4 | 1154 | 1154 |
Castel del Rio | BO | 9 | 1246 | 2400 |
Firenzuola | FI | 10 | 4726 | 7126 |
Marradi | FI | 11 | 3139 | 10265 |
Casola Valsenio | RA | 14 | 2617 | 12882 |
Fontanelice | BO | 15 | 1943 | 14825 |
Monghidoro | BO | 18 | 3749 | 18574 |
Borgo Tossignano | BO | 18 | 3288 | 21862 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.2 | 2021-04-22 06:35:13 |
44.1298 | 11.502 | 10 | 2021-04-22 06:44:41 |
Sala Sismica INGV-Roma | 89349521 |
Field | Value |
---|---|
Time (UTC) | 2021-04-22 06:35:13 ± 0.05 |
Latitude | 44.1298 ± 0.0027 |
Longitude | 11.5020 ± 0.0050 |
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 | 89349521 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 375 |
Semi-minor axis of confidence ellipse (meter) | 320 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 306 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 380.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 80 |
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) | 0.13 |
Epicentral distance of station closest to the epicenter (degree) | 0.07644 |
Epicentral distance of station farthest from the epicenter (degree) | 0.39210 |
Number of stations at which the event was observed | 11 |
Number of stations from which data was used for origin computation | 11 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.3 |
Num. used stations | 16 |
Type of magnitude | ML |
Reference to an origin | 89349521 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-22 06:44:41 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ASQU.HHZ. | 2021-04-22T06:35:27.46 | 0.3 | undecidable | manual | S | 148 | 43.5231 | 50 | 0.12 | 70 |
IV.SFI.EHZ. | 2021-04-22T06:35:25.79 | 0.6 | undecidable | manual | S | 132 | 37.1295 | 50 | 0.14 | 47 |
IV.RINC.HHZ. | 2021-04-22T06:35:23.20 | 0.6 | undecidable | manual | S | 163 | 28.2495 | 50 | -0.07 | 48 |
IV.ASQU.HHZ. | 2021-04-22T06:35:21.26 | 0.6 | positive | manual | P | 148 | 43.5231 | 50 | -0.06 | 47 |
IV.SFI.EHZ. | 2021-04-22T06:35:20.25 | 1.0 | positive | manual | P | 132 | 37.1295 | 50 | -0.09 | 24 |
IV.RUFI.EHZ. | 2021-04-22T06:35:19.42 | 1.0 | positive | manual | P | 179 | 32.3454 | 50 | -0.19 | 23 |
IV.RONT.HHZ. | 2021-04-22T06:35:19.71 | 0.3 | undecidable | manual | S | 200 | 16.0728 | 123 | -0.03 | 75 |
IV.SEI.HHZ. | 2021-04-22T06:35:19.24 | 0.3 | undecidable | manual | S | 234 | 14.1747 | 126 | 0.05 | 74 |
IV.MOCL.EHZ. | 2021-04-22T06:35:19.15 | 0.3 | negative | manual | P | 242 | 29.1486 | 50 | 0.05 | 73 |
IV.BRIS.HHZ. | 2021-04-22T06:35:18.52 | 0.3 | positive | manual | P | 63 | 23.5542 | 50 | 0.27 | 69 |
IV.RINC.HHZ. | 2021-04-22T06:35:18.84 | 0.3 | undecidable | manual | P | 163 | 28.2495 | 50 | -0.14 | 71 |
IV.VISG.HHZ. | 2021-04-22T06:35:17.73 | 0.3 | undecidable | manual | S | 321 | 8.4804 | 141 | -0.02 | 76 |
IV.MTRZ.HNZ. | 2021-04-22T06:35:17.25 | 1.0 | undecidable | manual | P | 343 | 21.1677 | 116 | -0.58 | 21 |
IV.RONT.HHZ. | 2021-04-22T06:35:17.02 | 0.1 | positive | manual | P | 200 | 16.0728 | 123 | 0.08 | 98 |
IV.LMD.HHZ. | 2021-04-22T06:35:16.96 | 0.1 | positive | manual | P | 109 | 17.3715 | 121 | -0.19 | 97 |
IV.SEI.HHZ. | 2021-04-22T06:35:16.61 | 0.1 | positive | manual | P | 234 | 14.1747 | 126 | -0.01 | 100 |
IV.VISG.HHZ. | 2021-04-22T06:35:15.87 | 0.1 | undecidable | manual | P | 321 | 8.4804 | 141 | 0.08 | 99 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VISG.HHN. | ML:1.5 | 0.00041049999999999995 | 1.66 | AML | other | m | 2021-04-22T06:35:17.01 |
IV.VISG.HHE. | ML:1.4 | 0.000321 | 0.22 | AML | other | m | 2021-04-22T06:35:18.62 |
IV.SEI.HHE. | ML:1.8 | 0.00061 | 0.2 | AML | other | m | 2021-04-22T06:35:19.34 |
IV.SEI.HHN. | ML:2.1 | 0.001345 | 0.18 | AML | other | m | 2021-04-22T06:35:19.46 |
IV.RONT.HHE. | ML:1.8 | 0.0005105 | 0.32 | AML | other | m | 2021-04-22T06:35:19.83 |
IV.RONT.HHN. | ML:1.7 | 0.0004625 | 0.2 | AML | other | m | 2021-04-22T06:35:20.41 |
IV.LMD.HHE. | ML:1.1 | 0.0001003 | 0.42 | AML | other | m | 2021-04-22T06:35:21.78 |
IV.LMD.HHN. | ML:1.1 | 0.0001001 | 0.6 | AML | other | m | 2021-04-22T06:35:23.55 |
IV.MOCL.EHE. | ML:1.0 | 0.00005705 | 0.22 | AML | other | m | 2021-04-22T06:35:24.59 |
IV.MOCL.EHN. | ML:1.0 | 0.000054550000000000005 | 1.54 | AML | other | m | 2021-04-22T06:35:24.88 |
IV.BRIS.HHE. | ML:1.1 | 0.0000839 | 1.58 | AML | other | m | 2021-04-22T06:35:26.97 |
IV.SFI.EHN. | ML:1.0 | 0.0000367 | 0.24 | AML | other | m | 2021-04-22T06:35:26.30 |
IV.BRIS.HHN. | ML:1.2 | 0.0001023 | 0.6 | AML | other | m | 2021-04-22T06:35:26.58 |
IV.SFI.EHE. | ML:1.0 | 0.0000389 | 0.34 | AML | other | m | 2021-04-22T06:35:26.70 |
IV.ASQU.HHE. | ML:1.0 | 0.0000296 | 1.02 | AML | other | m | 2021-04-22T06:35:27.58 |
IV.ASQU.HHN. | ML:1.0 | 0.00002825 | 0.84 | AML | other | m | 2021-04-22T06:35:28.47 |