A magnitude ML 1.2 earthquake occured in region: 5 km NE Marradi (FI), on
and geographic coordinates (lat, lon) 44.1170, 11.6510 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 |
---|---|---|---|---|
Marradi | FI | 5 | 3139 | 3139 |
Palazzuolo sul Senio | FI | 8 | 1154 | 4293 |
Tredozio | FC | 9 | 1212 | 5505 |
Casola Valsenio | RA | 12 | 2617 | 8122 |
Modigliana | FC | 12 | 4560 | 12682 |
Portico e San Benedetto | FC | 15 | 756 | 13438 |
Brisighella | RA | 15 | 7639 | 21077 |
Castel del Rio | BO | 16 | 1246 | 22323 |
Rocca San Casciano | FC | 17 | 1910 | 24233 |
Fontanelice | BO | 17 | 1943 | 26176 |
Premilcuore | FC | 19 | 799 | 26975 |
Borgo Tossignano | BO | 19 | 3288 | 30263 |
Riolo Terme | RA | 19 | 5720 | 35983 |
Dovadola | FC | 19 | 1653 | 37636 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.2 | 2020-02-28 03:46:26 |
44.1172 | 11.6513 | 9 | 2020-02-28 03:51:47 |
Sala Sismica INGV-Roma | 76882031 |
Field | Value |
---|---|
Time (UTC) | 2020-02-28 03:46:26 ± 0.1 |
Latitude | 44.1172 ± 0.0036 |
Longitude | 11.6513 ± 0.0050 |
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 | 76882031 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 369 |
Semi-minor axis of confidence ellipse (meter) | 195 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 176 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 370.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 103 |
Number of associated phases, regardless of their use for origin computation | 19 |
Number of defining phases | 16 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.2 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.29678 |
Number of stations at which the event was observed | 11 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.2 |
Num. used stations | 11 |
Type of magnitude | ML |
Reference to an origin | 76882031 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-02-28 03:51:47 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.MONC.HHZ. | 2020-02-28T03:47:17.61 | 3.0 | undecidable | manual | Pn | 6.41 | 0 | |||
IV.LPEL.HHZ. | 2020-02-28T03:47:16.15 | 3.0 | negative | manual | Pg | 5.6 | 0 | |||
IV.CPGN.HNZ. | 2020-02-28T03:46:47.42 | 3.0 | undecidable | manual | S | 0 | 0 | |||
IV.RUFI.EHZ. | 2020-02-28T03:46:38.31 | 0.6 | undecidable | manual | S | 200 | 32.9448 | 50 | 0.31 | 46 |
IV.SFI.HNZ. | 2020-02-28T03:46:36.74 | 0.1 | undecidable | manual | S | 146 | 28.2495 | 108 | 0.08 | 98 |
IV.SEI.HHZ. | 2020-02-28T03:46:35.34 | 0.1 | undecidable | manual | S | 253 | 24.3534 | 111 | -0.04 | 99 |
IV.RINC.HHZ. | 2020-02-28T03:46:35.98 | 0.1 | undecidable | manual | S | 188 | 25.8519 | 110 | 0.11 | 97 |
IV.RONT.HHZ. | 2020-02-28T03:46:35.12 | 0.3 | undecidable | manual | S | 232 | 22.1556 | 113 | 0.44 | 68 |
IV.VISG.HHZ. | 2020-02-28T03:46:33.62 | 0.6 | undecidable | manual | S | 295 | 19.0698 | 116 | -0.06 | 50 |
IV.RUFI.EHZ. | 2020-02-28T03:46:32.83 | 0.3 | positive | manual | P | 200 | 32.9448 | 50 | -0.24 | 70 |
IV.SFI.HNZ. | 2020-02-28T03:46:32.09 | 0.1 | undecidable | manual | P | 146 | 28.2495 | 108 | -0.21 | 95 |
IV.BRIS.HHZ. | 2020-02-28T03:46:32.82 | 0.3 | undecidable | manual | S | 38 | 14.9739 | 122 | 0.35 | 71 |
IV.RONT.HHZ. | 2020-02-28T03:46:31.22 | 0.1 | positive | manual | P | 232 | 22.1556 | 113 | 0.07 | 99 |
IV.SEI.HHZ. | 2020-02-28T03:46:31.35 | 0.1 | positive | manual | P | 253 | 24.3534 | 111 | -0.21 | 96 |
IV.RINC.HHZ. | 2020-02-28T03:46:31.81 | 1.0 | positive | manual | P | 188 | 25.8519 | 110 | -0.03 | 25 |
IV.VISG.HHZ. | 2020-02-28T03:46:30.45 | 0.1 | negative | manual | P | 295 | 19.0698 | 116 | -0.13 | 98 |
IV.LMD.HHZ. | 2020-02-28T03:46:30.03 | 0.3 | undecidable | manual | S | 135 | 6.2937 | 146 | -0.19 | 74 |
IV.BRIS.HHZ. | 2020-02-28T03:46:30.01 | 0.3 | negative | manual | P | 38 | 14.9739 | 122 | 0.13 | 74 |
IV.LMD.HHZ. | 2020-02-28T03:46:28.44 | 0.1 | positive | manual | P | 135 | 6.2937 | 146 | -0.14 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LMD.HHE. | ML:1.2 | 0.0002565817 | 0.3008 | AML | other | m | 2020-02-28T03:46:30.42 |
IV.LMD.HHN. | ML:1.3 | 0.00033777659999999996 | 0.2816 | AML | other | m | 2020-02-28T03:46:30.08 |
IV.BRIS.HHE. | ML:1.1 | 0.00012305524 | 0.48 | AML | other | m | 2020-02-28T03:46:33.53 |
IV.BRIS.HHN. | ML:1.6 | 0.00034855800000000006 | 0.2976 | AML | other | m | 2020-02-28T03:46:33.75 |
IV.VISG.HHE. | ML:0.7 | 0.000042365723 | 0.3584 | AML | other | m | 2020-02-28T03:46:38.37 |
IV.VISG.HHN. | ML:0.8 | 0.00005324089499999999 | 0.8384 | AML | other | m | 2020-02-28T03:46:34.90 |
IV.RONT.HHE. | ML:1.3 | 0.00012669152 | 0.3392 | AML | other | m | 2020-02-28T03:46:34.00 |
IV.RONT.HHN. | ML:1.3 | 0.0001398355 | 0.3616 | AML | other | m | 2020-02-28T03:46:35.88 |
IV.SEI.HHE. | ML:1.4 | 0.0001626998 | 0.56 | AML | other | m | 2020-02-28T03:46:35.77 |
IV.SEI.HHN. | ML:1.5 | 0.00018749389999999998 | 0.3616 | AML | other | m | 2020-02-28T03:46:35.72 |
IV.RINC.HHE. | ML:1.0 | 0.000064204545 | 0.96 | AML | other | m | 2020-02-28T03:46:37.37 |