A magnitude ML 0.9 earthquake occured in region: 5 km NE Palazzuolo sul Senio (FI), on
and geographic coordinates (lat, lon) 44.1360, 11.6010 at 9 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 | 5 | 1154 | 1154 |
Marradi | FI | 7 | 3139 | 4293 |
Casola Valsenio | RA | 10 | 2617 | 6910 |
Castel del Rio | BO | 12 | 1246 | 8156 |
Tredozio | FC | 13 | 1212 | 9368 |
Fontanelice | BO | 14 | 1943 | 11311 |
Modigliana | FC | 16 | 4560 | 15871 |
Borgo Tossignano | BO | 16 | 3288 | 19159 |
Brisighella | RA | 17 | 7639 | 26798 |
Firenzuola | FI | 18 | 4726 | 31524 |
Casalfiumanese | BO | 18 | 3438 | 34962 |
Riolo Terme | RA | 19 | 5720 | 40682 |
Portico e San Benedetto | FC | 19 | 756 | 41438 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-05-25 00:53:28 |
44.136 | 11.601 | 9 | 2021-05-25 01:06:50 |
Sala Sismica INGV-Roma | 90468421 |
Field | Value |
---|---|
Time (UTC) | 2021-05-25 00:53:28 ± 0.08 |
Latitude | 44.1360 ± 0.0063 |
Longitude | 11.6010 ± 0.0063 |
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 | 90468421 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 584 |
Semi-minor axis of confidence ellipse (meter) | 481 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 354 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 580.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 87 |
Number of associated phases, regardless of their use for origin computation | 19 |
Number of defining phases | 17 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.24 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.36512 |
Number of stations at which the event was observed | 10 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.3 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 90468421 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-05-25 01:06:50 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ASQU.HHE. | 2021-05-25T00:53:42.94 | 0.6 | undecidable | manual | S | 158 | 40.5261 | 50 | 0.53 | 43 |
IV.FAZ.HNZ. | 2021-05-25T00:53:41.77 | 3.0 | undecidable | manual | S | 0 | ||||
IV.RUFI.EHN. | 2021-05-25T00:53:40.86 | 0.6 | undecidable | manual | S | 192 | 33.8439 | 50 | 0.23 | 47 |
IV.SFI.EHE. | 2021-05-25T00:53:40.60 | 0.6 | undecidable | manual | S | 143 | 32.3454 | 50 | 0.39 | 45 |
IV.MTRZ.HNZ. | 2021-05-25T00:53:38.48 | 0.6 | undecidable | manual | S | 325 | 24.0537 | 111 | 0.81 | 40 |
IV.SEI.HHZ. | 2021-05-25T00:53:37.10 | 0.6 | undecidable | manual | S | 245 | 21.3675 | 113 | 0.32 | 47 |
IV.ASQU.HHE. | 2021-05-25T00:53:36.48 | 0.1 | undecidable | manual | P | 158 | 40.5261 | 50 | -0.14 | 95 |
IV.FAZ.HNZ. | 2021-05-25T00:53:36.84 | 3.0 | undecidable | manual | P | 0 | ||||
IV.BRIS.HHZ. | 2021-05-25T00:53:35.27 | 0.6 | undecidable | manual | S | 53 | 16.4724 | 119 | 0.02 | 51 |
IV.RUFI.EHN. | 2021-05-25T00:53:35.23 | 0.1 | undecidable | manual | P | 192 | 33.8439 | 50 | -0.36 | 91 |
IV.SFI.EHE. | 2021-05-25T00:53:35.11 | 0.1 | undecidable | manual | P | 143 | 32.3454 | 50 | -0.24 | 94 |
IV.FAEN.HNZ. | 2021-05-25T00:53:34.63 | 0.1 | undecidable | manual | P | 52 | 27.75 | 108 | 0.05 | 98 |
IV.VISG.HHZ. | 2021-05-25T00:53:34.42 | 0.6 | undecidable | manual | S | 294 | 14.4744 | 122 | -0.26 | 48 |
IV.LMD.HHZ. | 2021-05-25T00:53:33.74 | 0.6 | undecidable | manual | S | 127 | 10.6782 | 131 | 0.13 | 50 |
IV.SEI.HHZ. | 2021-05-25T00:53:33.33 | 0.1 | undecidable | manual | P | 245 | 21.3675 | 113 | -0.04 | 100 |
IV.MTRZ.HNZ. | 2021-05-25T00:53:33.89 | 0.1 | undecidable | manual | P | 325 | 24.0537 | 111 | 0.01 | 100 |
IV.BRIS.HHZ. | 2021-05-25T00:53:32.38 | 0.1 | positive | manual | P | 53 | 16.4724 | 119 | -0.11 | 99 |
IV.LMD.HHZ. | 2021-05-25T00:53:31.56 | 0.6 | positive | manual | P | 127 | 10.6782 | 131 | 0.02 | 51 |
IV.VISG.HHZ. | 2021-05-25T00:53:31.98 | 0.1 | undecidable | manual | P | 294 | 14.4744 | 122 | -0.18 | 98 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LMD.HHN. | ML:0.8 | 0.00007305 | 0.22 | AML | other | m | 2021-05-25T00:53:33.87 |
IV.LMD.HHE. | ML:0.7 | 0.00005895 | 1.06 | AML | other | m | 2021-05-25T00:53:34.82 |
IV.VISG.HHE. | ML:0.7 | 0.000048799999999999994 | 0.12 | AML | other | m | 2021-05-25T00:53:34.60 |
IV.VISG.HHN. | ML:0.7 | 0.00005185 | 1.16 | AML | other | m | 2021-05-25T00:53:34.07 |
IV.BRIS.HHE. | ML:1.3 | 0.000185 | 0.36 | AML | other | m | 2021-05-25T00:53:35.52 |
IV.BRIS.HHN. | ML:1.4 | 0.000251 | 0.22 | AML | other | m | 2021-05-25T00:53:35.52 |
IV.SEI.HHE. | ML:0.9 | 0.000055507215 | 0.44 | AML | other | m | 2021-05-25T00:53:37.73 |
IV.SEI.HHN. | ML:1.0 | 0.000073964875 | 0.3 | AML | other | m | 2021-05-25T00:53:38.14 |