A magnitude ML 0.7 earthquake occured in region: 4 km W Palazzuolo sul Senio (FI), on
and geographic coordinates (lat, lon) 44.1260, 11.4980 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 |
Firenzuola | FI | 10 | 4726 | 5880 |
Castel del Rio | BO | 10 | 1246 | 7126 |
Marradi | FI | 11 | 3139 | 10265 |
Casola Valsenio | RA | 15 | 2617 | 12882 |
Fontanelice | BO | 16 | 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 0.7 | 2021-04-22 05:16:11 |
44.1262 | 11.498 | 9 | 2021-04-22 05:55:53 |
Sala Sismica INGV-Roma | 89348941 |
Field | Value |
---|---|
Time (UTC) | 2021-04-22 05:16:11 ± 0.12 |
Latitude | 44.1262 ± 0.0018 |
Longitude | 11.4980 ± 0.0088 |
Depth (km) | 9 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 89348941 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 608 |
Semi-minor axis of confidence ellipse (meter) | 439 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 282 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 610.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 235 |
Number of associated phases, regardless of their use for origin computation | 16 |
Number of defining phases | 6 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.06 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.14029 |
Number of stations at which the event was observed | 13 |
Number of stations from which data was used for origin computation | 3 |
Field | Value |
---|---|
Value | 0.7 |
Uncertainty | 0.3 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 89348941 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-22 05:55:53 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IT.LRNO.HNZ. | 2021-04-22T05:17:46.19 | 3.0 | undecidable | manual | Sg | 6.38 | 0 | |||
IV.IFIL.HHZ. | 2021-04-22T05:17:39.21 | 3.0 | negative | manual | Pn | 2.71 | 0 | |||
IV.LAV9.HNZ. | 2021-04-22T05:17:25.74 | 3.0 | undecidable | manual | Sg | 3.64 | 0 | |||
IT.PLTA.HNZ. | 2021-04-22T05:17:10.15 | 3.0 | positive | manual | Pg | 12.15 | 0 | |||
IV.SGG.HHZ. | 2021-04-22T05:17:07.72 | 3.0 | undecidable | manual | Pg | 6.96 | 0 | |||
IV.RM33.EHZ. | 2021-04-22T05:17:01.60 | 3.0 | undecidable | manual | Sn | -5.51 | 0 | |||
IV.ZEN8.EHZ. | 2021-04-22T05:16:56.93 | 3.0 | undecidable | manual | Sg | 0 | 0 | |||
IV.MOMA.HHZ. | 2021-04-22T05:16:55.21 | 3.0 | undecidable | manual | Sg | -0.12 | 0 | |||
IV.RIBO.EHZ.01 | 2021-04-22T05:16:51.68 | 3.0 | undecidable | manual | Sg | 0.68 | 0 | |||
MN.TRI.HHZ. | 2021-04-22T05:16:49.38 | 3.0 | positive | manual | Pg | 7.09 | 0 | |||
IV.SEI.HHZ. | 2021-04-22T05:16:17.40 | 0.6 | undecidable | manual | S | 234 | 13.6752 | 122 | 0.06 | 49 |
IV.RONT.HHZ. | 2021-04-22T05:16:17.90 | 0.6 | undecidable | manual | S | 199 | 15.5733 | 119 | -0.01 | 50 |
IV.VISG.HHZ. | 2021-04-22T05:16:15.90 | 0.6 | undecidable | manual | S | 324 | 8.5803 | 135 | -0.05 | 50 |
IV.RONT.HHZ. | 2021-04-22T05:16:15.32 | 0.3 | undecidable | manual | P | 199 | 15.5733 | 119 | 0.01 | 75 |
IV.VISG.HHZ. | 2021-04-22T05:16:14.22 | 0.1 | undecidable | manual | P | 324 | 8.5803 | 135 | 0.04 | 100 |
IV.SEI.HHZ. | 2021-04-22T05:16:14.92 | 0.1 | positive | manual | P | 234 | 13.6752 | 122 | -0.06 | 99 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VISG.HHE. | ML:0.7 | 0.000068 | 0.32 | AML | other | m | 2021-04-22T05:16:16.02 |
IV.VISG.HHN. | ML:0.5 | 0.0000438 | 1.08 | AML | other | m | 2021-04-22T05:16:16.44 |
IV.SEI.HHE. | ML:0.7 | 0.000060150000000000005 | 0.18 | AML | other | m | 2021-04-22T05:16:17.72 |
IV.SEI.HHN. | ML:1.1 | 0.000144 | 0.14 | AML | other | m | 2021-04-22T05:16:17.74 |
IV.BDI.HHE. | ML:1.8 | 0.0001145 | 0.06 | AML | other | m | 2021-04-22T05:16:52.63 |
IV.BDI.HHN. | ML:1.6 | 0.00006735 | 0.06 | AML | other | m | 2021-04-22T05:16:56.68 |