A magnitude ML 1.1 earthquake occured in region: 6 km NE Firenzuola (FI), on
and geographic coordinates (lat, lon) 44.1600, 11.4350 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 |
---|---|---|---|---|
Firenzuola | FI | 6 | 4726 | 4726 |
Castel del Rio | BO | 8 | 1246 | 5972 |
Palazzuolo sul Senio | FI | 10 | 1154 | 7126 |
Monghidoro | BO | 12 | 3749 | 10875 |
Fontanelice | BO | 15 | 1943 | 12818 |
Loiano | BO | 15 | 4294 | 17112 |
Casola Valsenio | RA | 17 | 2617 | 19729 |
Marradi | FI | 17 | 3139 | 22868 |
San Benedetto Val di Sambro | BO | 17 | 4315 | 27183 |
Borgo Tossignano | BO | 18 | 3288 | 30471 |
Monzuno | BO | 18 | 6328 | 36799 |
Monterenzio | BO | 19 | 6035 | 42834 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.1 | 2021-04-09 18:41:26 |
44.1597 | 11.4348 | 10 | 2021-04-09 18:47:08 |
Sala Sismica INGV-Roma | 88948641 |
Field | Value |
---|---|
Time (UTC) | 2021-04-09 18:41:26 ± 0.2 |
Latitude | 44.1597 ± 0.0063 |
Longitude | 11.4348 ± 0.0226 |
Depth (km) | 10 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 88948641 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1791 |
Semi-minor axis of confidence ellipse (meter) | 386 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 281 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1790.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 149 |
Number of associated phases, regardless of their use for origin computation | 12 |
Number of defining phases | 9 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.23 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.24641 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.3 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 88948641 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-09 18:47:08 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CPGN.EHZ. | 2021-04-09T18:41:53.82 | 3.0 | undecidable | manual | S | -0.21 | 0 | |||
IV.APEC.HHZ. | 2021-04-09T18:41:45.66 | 3.0 | positive | manual | P | 0.09 | 0 | |||
IV.RONT.HHZ. | 2021-04-09T18:41:34.17 | 0.3 | undecidable | manual | S | 180 | 18.4704 | 119 | 0.24 | 71 |
IV.BRIS.HHZ. | 2021-04-09T18:41:32.56 | 0.6 | negative | manual | P | 75 | 27.3504 | 50 | 0.17 | 48 |
IV.SEI.HHE. | 2021-04-09T18:41:32.66 | 0.6 | undecidable | manual | S | 208 | 13.1757 | 127 | 0.25 | 48 |
IV.MOCL.EHZ. | 2021-04-09T18:41:31.93 | 3.0 | undecidable | manual | S | -2.9 | 0 | |||
IV.LMD.HHZ. | 2021-04-09T18:41:31.38 | 1.0 | negative | manual | P | 113 | 23.5542 | 113 | -0.39 | 23 |
IV.RONT.HHZ. | 2021-04-09T18:41:30.80 | 0.1 | undecidable | manual | P | 180 | 18.4704 | 119 | -0.06 | 99 |
IV.MTRZ.HHZ. | 2021-04-09T18:41:30.92 | 0.6 | negative | manual | P | 357 | 16.9719 | 121 | 0.32 | 47 |
IV.VISG.HHZ. | 2021-04-09T18:41:30.40 | 0.6 | undecidable | manual | S | 359 | 3.1968 | 162 | 0.08 | 51 |
IV.SEI.HHE. | 2021-04-09T18:41:29.68 | 0.1 | undecidable | manual | P | 208 | 13.1757 | 127 | -0.29 | 95 |
IV.VISG.HHZ. | 2021-04-09T18:41:28.64 | 0.1 | negative | manual | P | 359 | 3.1968 | 162 | -0.13 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.RONT.HHE. | ML:1.1 | 0.0001006333 | 0.1536 | AML | other | m | 2021-04-09T18:41:34.88 |
IV.MTRZ.HHN. | ML:0.0 | 0.00007296434 | 0.32 | AML | other | m | 2021-04-09T18:41:37.17 |
IV.MTRZ.HHE. | ML:0.0 | 0.00011544349 | 0.2304 | AML | other | m | 2021-04-09T18:41:35.36 |
IV.RONT.HHN. | ML:1.1 | 0.0001065 | 0.18 | AML | other | m | 2021-04-09T18:41:35.59 |
IV.VISG.HHE. | ML:0.6 | 0.00008173845 | 0.0512 | AML | other | m | 2021-04-09T18:41:30.44 |
IV.VISG.HHN. | ML:1.0 | 0.00016151323 | 0.1024 | AML | other | m | 2021-04-09T18:41:30.55 |
IV.MTRZ.HNE. | ML:1.6 | 0.000337938015 | 0.7808 | AML | other | m | 2021-04-09T18:41:37.37 |
IV.MTRZ.HNN. | ML:1.5 | 0.00025997170000000003 | 0.4096 | AML | other | m | 2021-04-09T18:41:37.53 |
IV.BRIS.HNE. | ML:1.4 | 0.00012250595 | 0.896 | AML | other | m | 2021-04-09T18:41:33.45 |
IV.BRIS.HNN. | ML:1.5 | 0.00017871740000000003 | 0.7424 | AML | other | m | 2021-04-09T18:41:45.55 |
IV.BRIS.HHE. | ML:0.8 | 0.0000333994 | 0.1664 | AML | other | m | 2021-04-09T18:41:37.68 |
IV.BRIS.HHN. | ML:1.0 | 0.000054091065 | 0.2816 | AML | other | m | 2021-04-09T18:41:37.95 |