A magnitude ML 0.8 earthquake occured in region: 2 km NE Certaldo (FI), on
and geographic coordinates (lat, lon) 43.5600, 11.0600 at 14 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 |
---|---|---|---|---|
Certaldo | FI | 2 | 16121 | 16121 |
Castelfiorentino | FI | 9 | 17504 | 33625 |
Gambassi Terme | FI | 9 | 4870 | 38495 |
Tavarnelle Val di Pesa | FI | 9 | 7800 | 46295 |
Barberino Val d'Elsa | FI | 9 | 4386 | 50681 |
Montespertoli | FI | 9 | 13537 | 64218 |
San Gimignano | SI | 10 | 7820 | 72038 |
Montaione | FI | 12 | 3700 | 75738 |
Poggibonsi | SI | 13 | 29196 | 104934 |
San Casciano in Val di Pesa | FI | 15 | 17062 | 121996 |
Colle di Val d'Elsa | SI | 16 | 21620 | 143616 |
Montelupo Fiorentino | FI | 19 | 14098 | 157714 |
Empoli | FI | 20 | 48109 | 205823 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.8 | 2021-10-30 03:30:02 |
43.5603 | 11.0597 | 14 | 2021-10-30 03:35:06 |
Sala Sismica INGV-Roma | 97076941 |
Field | Value |
---|---|
Time (UTC) | 2021-10-30 03:30:02 ± 0.11 |
Latitude | 43.5603 ± 0.0063 |
Longitude | 11.0597 ± 0.0099 |
Depth (km) | 14 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 97076941 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 676 |
Semi-minor axis of confidence ellipse (meter) | 639 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 234 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 680.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 119 |
Number of associated phases, regardless of their use for origin computation | 13 |
Number of defining phases | 13 |
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) | 0.13939 |
Epicentral distance of station farthest from the epicenter (degree) | 0.53150 |
Number of stations at which the event was observed | 8 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 0.8 |
Uncertainty | 0.1 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 97076941 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-30 03:35:06 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.PII.HHZ. | 2021-10-30T03:30:17.77 | 0.6 | undecidable | manual | S | 293 | 46.5201 | 95 | -0.11 | 47 |
IV.FROS.CHZ. | 2021-10-30T03:30:15.65 | 0.3 | undecidable | manual | S | 169 | 39.627 | 96 | -0.41 | 67 |
GU.POPM.HHZ. | 2021-10-30T03:30:14.36 | 1.0 | positive | manual | P | 336 | 58.9965 | 93 | 0.86 | 18 |
IV.TRIF.CHE. | 2021-10-30T03:30:12.42 | 0.1 | undecidable | manual | P | 194 | 51.0156 | 94 | 0.14 | 94 |
IV.CRMI.HHZ. | 2021-10-30T03:30:12.43 | 0.1 | undecidable | manual | S | 346 | 26.8509 | 101 | -0.25 | 96 |
IV.CSNT.HHZ. | 2021-10-30T03:30:11.08 | 0.3 | undecidable | manual | S | 118 | 20.9679 | 107 | -0.05 | 76 |
IV.PII.HHZ. | 2021-10-30T03:30:11.68 | 0.3 | negative | manual | P | 293 | 46.5201 | 95 | 0.1 | 72 |
IV.MAGO.CHZ. | 2021-10-30T03:30:11.33 | 0.6 | undecidable | manual | P | 226 | 45.4212 | 95 | -0.08 | 48 |
IV.FROS.CHZ. | 2021-10-30T03:30:10.90 | 0.6 | positive | manual | P | 169 | 39.627 | 96 | 0.37 | 46 |
IV.OSSC.HHZ. | 2021-10-30T03:30:09.79 | 0.3 | undecidable | manual | S | 105 | 15.4734 | 117 | 0 | 77 |
IV.CRMI.HHZ. | 2021-10-30T03:30:08.61 | 0.3 | undecidable | manual | P | 346 | 26.8509 | 101 | 0.03 | 75 |
IV.OSSC.HHZ. | 2021-10-30T03:30:07.03 | 0.1 | negative | manual | P | 105 | 15.4734 | 117 | 0.12 | 100 |
IV.CSNT.HHZ. | 2021-10-30T03:30:07.58 | 0.1 | undecidable | manual | P | 118 | 20.9679 | 107 | -0.1 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.OSSC.HHE. | ML:0.9 | 0.00006085 | 1.54 | AML | other | m | 2021-10-30T03:30:10.89 |
IV.OSSC.HHN. | ML:0.8 | 0.000054499999999999997 | 0.44 | AML | other | m | 2021-10-30T03:30:10.52 |
IV.CRMI.HHE. | ML:0.6 | 0.00002165 | 0.42 | AML | other | m | 2021-10-30T03:30:13.41 |
IV.CRMI.HHN. | ML:0.8 | 0.0000322 | 1.16 | AML | other | m | 2021-10-30T03:30:13.66 |