A magnitude ML 0.8 earthquake occured in region: 1 km NW Premilcuore (FC), on
and geographic coordinates (lat, lon) 43.9860, 11.7680 at 7 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 |
---|---|---|---|---|
Premilcuore | FC | 1 | 799 | 799 |
Portico e San Benedetto | FC | 5 | 756 | 1555 |
Rocca San Casciano | FC | 10 | 1910 | 3465 |
Tredozio | FC | 11 | 1212 | 4677 |
Galeata | FC | 12 | 2516 | 7193 |
Santa Sofia | FC | 12 | 4136 | 11329 |
San Godenzo | FI | 14 | 1167 | 12496 |
Civitella di Romagna | FC | 14 | 3786 | 16282 |
Marradi | FI | 16 | 3139 | 19421 |
Dovadola | FC | 18 | 1653 | 21074 |
Modigliana | FC | 19 | 4560 | 25634 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.8 | 2021-09-01 02:44:49 |
43.9857 | 11.7677 | 7 | 2021-09-01 02:49:27 |
Sala Sismica INGV-Roma | 94893711 |
Field | Value |
---|---|
Time (UTC) | 2021-09-01 02:44:49 ± 0.18 |
Latitude | 43.9857 ± 0.0036 |
Longitude | 11.7677 ± 0.0075 |
Depth (km) | 7 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 94893711 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 522 |
Semi-minor axis of confidence ellipse (meter) | 281 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 249 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 520.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 145 |
Number of associated phases, regardless of their use for origin computation | 12 |
Number of defining phases | 12 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.22 |
Epicentral distance of station closest to the epicenter (degree) | 0.09893 |
Epicentral distance of station farthest from the epicenter (degree) | 0.30217 |
Number of stations at which the event was observed | 6 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 0.8 |
Uncertainty | 0.2 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 94893711 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-09-01 02:49:27 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.SEI.HHZ. | 2021-09-01T02:45:01.15 | 0.3 | undecidable | manual | S | 283 | 33.5442 | 101 | 0.26 | 69 |
IV.BRIS.HHZ. | 2021-09-01T02:44:59.16 | 0.6 | undecidable | manual | S | 360 | 26.4513 | 104 | 0.64 | 42 |
IV.RUFI.EHZ. | 2021-09-01T02:44:58.64 | 0.3 | undecidable | manual | S | 232 | 26.3514 | 104 | 0.18 | 71 |
IV.ASQU.HHZ. | 2021-09-01T02:44:56.79 | 0.3 | undecidable | manual | S | 175 | 21.0678 | 108 | 0.1 | 73 |
IV.SEI.HHZ. | 2021-09-01T02:44:55.57 | 0.1 | undecidable | manual | P | 283 | 33.5442 | 101 | -0.31 | 91 |
IV.BRIS.HHZ. | 2021-09-01T02:44:54.53 | 0.1 | undecidable | manual | P | 360 | 26.4513 | 104 | 0.02 | 97 |
IV.RUFI.EHZ. | 2021-09-01T02:44:54.41 | 0.1 | undecidable | manual | P | 232 | 26.3514 | 104 | -0.07 | 96 |
IV.ASQU.HHZ. | 2021-09-01T02:44:53.42 | 0.1 | undecidable | manual | P | 175 | 21.0678 | 108 | -0.04 | 98 |
IV.LMD.HHZ. | 2021-09-01T02:44:53.44 | 0.1 | undecidable | manual | S | 335 | 11.2776 | 121 | -0.14 | 98 |
IV.SFI.EHZ. | 2021-09-01T02:44:53.52 | 0.1 | undecidable | manual | S | 145 | 10.9779 | 121 | 0.02 | 100 |
IV.LMD.HHZ. | 2021-09-01T02:44:51.51 | 0.1 | undecidable | manual | P | 335 | 11.2776 | 121 | -0.15 | 97 |
IV.SFI.EHZ. | 2021-09-01T02:44:51.58 | 0.1 | undecidable | manual | P | 145 | 10.9779 | 121 | -0.03 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LMD.HHE. | ML:0.7 | 0.00007630000000000001 | 0.4 | AML | other | m | 2021-09-01T02:44:53.64 |
IV.SFI.EHN. | ML:0.7 | 0.000075 | 0.4 | AML | other | m | 2021-09-01T02:44:53.65 |
IV.LMD.HHN. | ML:0.7 | 0.00007525 | 0.28 | AML | other | m | 2021-09-01T02:44:53.67 |
IV.SFI.EHE. | ML:0.9 | 0.0001154 | 0.1 | AML | other | m | 2021-09-01T02:44:53.70 |
IV.ASQU.HHE. | ML:0.7 | 0.00003995 | 0.18 | AML | other | m | 2021-09-01T02:44:57.27 |
IV.ASQU.HHN. | ML:0.4 | 0.000019549999999999997 | 0.36 | AML | other | m | 2021-09-01T02:44:59.63 |
IV.BRIS.HHE. | ML:1.1 | 0.00007025000000000001 | 0.36 | AML | other | m | 2021-09-01T02:44:59.46 |
IV.BRIS.HHN. | ML:1.0 | 0.00006665000000000001 | 0.78 | AML | other | m | 2021-09-01T02:45:00.57 |