A magnitude ML 0.9 earthquake occured in region: 4 km W Premilcuore (FC), on
and geographic coordinates (lat, lon) 43.9770, 11.7330 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 |
---|---|---|---|---|
Premilcuore | FC | 4 | 799 | 799 |
Portico e San Benedetto | FC | 7 | 756 | 1555 |
San Godenzo | FI | 11 | 1167 | 2722 |
Tredozio | FC | 12 | 1212 | 3934 |
Rocca San Casciano | FC | 13 | 1910 | 5844 |
Santa Sofia | FC | 15 | 4136 | 9980 |
Galeata | FC | 15 | 2516 | 12496 |
Marradi | FI | 15 | 3139 | 15635 |
Civitella di Romagna | FC | 17 | 3786 | 19421 |
Londa | FI | 18 | 1840 | 21261 |
Dicomano | FI | 19 | 5515 | 26776 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-08-10 00:01:11 |
43.9768 | 11.7328 | 8 | 2021-08-10 00:09:00 |
Sala Sismica INGV-Roma | 93903121 |
Field | Value |
---|---|
Time (UTC) | 2021-08-10 00:01:11 ± 0.09 |
Latitude | 43.9768 ± 0.0036 |
Longitude | 11.7328 ± 0.0062 |
Depth (km) | 8 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 93903121 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 475 |
Semi-minor axis of confidence ellipse (meter) | 162 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 250 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 480.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 125 |
Number of associated phases, regardless of their use for origin computation | 17 |
Number of defining phases | 16 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.21 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.39120 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.3 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 93903121 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-08-10 00:09:00 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.APEC.HHZ. | 2021-08-10T00:01:35.36 | 3.0 | undecidable | manual | S | -0.05 | 0 | |||
IV.CRE.HHZ. | 2021-08-10T00:01:26.54 | 0.6 | undecidable | manual | S | 156 | 43.4232 | 50 | 0.01 | 48 |
IV.SEI.HHZ. | 2021-08-10T00:01:23.22 | 0.6 | undecidable | manual | S | 286 | 31.0467 | 105 | 0.24 | 47 |
IV.BOSL.HHZ. | 2021-08-10T00:01:22.50 | 0.6 | undecidable | manual | S | 260 | 29.0487 | 106 | 0.19 | 47 |
IV.BRIS.HHZ. | 2021-08-10T00:01:22.53 | 0.6 | undecidable | manual | S | 6 | 27.6501 | 106 | 0.71 | 41 |
IV.RUFI.EHZ. | 2021-08-10T00:01:20.51 | 0.6 | undecidable | manual | S | 229 | 23.5542 | 109 | 0.02 | 49 |
IV.CRE.HHZ. | 2021-08-10T00:01:20.04 | 0.3 | negative | manual | P | 156 | 43.4232 | 50 | -0.28 | 68 |
IV.ASQU.HHZ. | 2021-08-10T00:01:19.48 | 0.6 | undecidable | manual | S | 167 | 20.4684 | 112 | 0 | 50 |
IV.SEI.HHZ. | 2021-08-10T00:01:18.01 | 0.6 | undecidable | manual | P | 286 | 31.0467 | 105 | -0.26 | 46 |
IV.BRIS.HHZ. | 2021-08-10T00:01:17.80 | 0.1 | positive | manual | P | 6 | 27.6501 | 106 | 0.2 | 94 |
IV.BOSL.HHZ. | 2021-08-10T00:01:17.89 | 1.0 | negative | manual | P | 260 | 29.0487 | 106 | 0.01 | 25 |
IV.SFI.EHZ. | 2021-08-10T00:01:16.95 | 0.1 | undecidable | manual | S | 131 | 12.0768 | 124 | 0.06 | 100 |
IV.ASQU.HHZ. | 2021-08-10T00:01:16.35 | 0.6 | negative | manual | P | 167 | 20.4684 | 112 | 0.1 | 49 |
IV.LMD.HHZ. | 2021-08-10T00:01:16.26 | 0.1 | undecidable | manual | S | 350 | 11.3775 | 126 | -0.41 | 93 |
IV.RUFI.EHZ. | 2021-08-10T00:01:16.82 | 0.3 | positive | manual | P | 229 | 23.5542 | 109 | -0.01 | 74 |
IV.LMD.HHZ. | 2021-08-10T00:01:14.47 | 0.1 | positive | manual | P | 350 | 11.3775 | 126 | -0.16 | 98 |
IV.SFI.EHZ. | 2021-08-10T00:01:14.85 | 0.6 | undecidable | manual | P | 131 | 12.0768 | 124 | 0.09 | 50 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LMD.HHE. | ML:1.3 | 0.0002395 | 0.1 | AML | other | m | 2021-08-10T00:01:16.56 |
IV.LMD.HHN. | ML:1.1 | 0.000163 | 0.52 | AML | other | m | 2021-08-10T00:01:16.49 |
IV.SFI.EHE. | ML:0.6 | 0.00005265 | 0.1 | AML | other | m | 2021-08-10T00:01:17.06 |
IV.SFI.EHN. | ML:0.6 | 0.00005415 | 0.3 | AML | other | m | 2021-08-10T00:01:17.26 |
IV.ASQU.HHN. | ML:0.7 | 0.000038650000000000004 | 1.72 | AML | other | m | 2021-08-10T00:01:20.12 |
IV.ASQU.HHE. | ML:0.6 | 0.00003015 | 1.1 | AML | other | m | 2021-08-10T00:01:20.70 |
IV.BRIS.HHE. | ML:1.2 | 0.00008165 | 0.22 | AML | other | m | 2021-08-10T00:01:22.75 |
IV.BRIS.HHN. | ML:1.2 | 0.00009375 | 0.28 | AML | other | m | 2021-08-10T00:01:22.75 |
IV.SEI.HHN. | ML:1.4 | 0.00011410000000000001 | 0.32 | AML | other | m | 2021-08-10T00:01:23.47 |
IV.BOSL.HHN. | ML:0.5 | 0.00001475 | 0.08 | AML | other | m | 2021-08-10T00:01:23.54 |
IV.BOSL.HHE. | ML:0.5 | 0.000013549999999999999 | 0.66 | AML | other | m | 2021-08-10T00:01:23.59 |
IV.SEI.HHE. | ML:1.1 | 0.00005415 | 0.7 | AML | other | m | 2021-08-10T00:01:23.82 |
IV.CRE.HHE. | ML:0.9 | 0.00002295 | 0.24 | AML | other | m | 2021-08-10T00:01:26.79 |
IV.CRE.HHN. | ML:1.0 | 0.0000305 | 0.26 | AML | other | m | 2021-08-10T00:01:27.82 |