A magnitude ML 1.0 earthquake occured in region: 3 km SE Colle di Val d'Elsa (SI), on
and geographic coordinates (lat, lon) 43.4010, 11.1460 at 5 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 |
---|---|---|---|---|
Colle di Val d'Elsa | SI | 3 | 21620 | 21620 |
Monteriggioni | SI | 6 | 9810 | 31430 |
Poggibonsi | SI | 8 | 29196 | 60626 |
Casole d'Elsa | SI | 11 | 3897 | 64523 |
San Gimignano | SI | 11 | 7820 | 72343 |
Castellina in Chianti | SI | 14 | 2859 | 75202 |
Sovicille | SI | 15 | 10116 | 85318 |
Barberino Val d'Elsa | FI | 16 | 4386 | 89704 |
Radicondoli | SI | 18 | 914 | 90618 |
Siena | SI | 18 | 53903 | 144521 |
Tavarnelle Val di Pesa | FI | 18 | 7800 | 152321 |
Certaldo | FI | 19 | 16121 | 168442 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.0 | 2020-04-11 23:09:13 |
43.4008 | 11.1462 | 5 | 2020-04-11 23:18:40 |
Sala Sismica INGV-Roma | 78124261 |
Field | Value |
---|---|
Time (UTC) | 2020-04-11 23:09:13 ± 0.08 |
Latitude | 43.4008 ± 0.0045 |
Longitude | 11.1462 ± 0.0062 |
Depth (km) | 5 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 78124261 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 551 |
Semi-minor axis of confidence ellipse (meter) | 223 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 297 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 550.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 102 |
Number of associated phases, regardless of their use for origin computation | 16 |
Number of defining phases | 16 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.25 |
Epicentral distance of station closest to the epicenter (degree) | 0.12680 |
Epicentral distance of station farthest from the epicenter (degree) | 0.73475 |
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 | 1.0 |
Uncertainty | 0.2 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 78124261 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-04-11 23:18:40 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.SSP9.EHZ. | 2020-04-11T23:09:39.71 | 0.6 | undecidable | manual | S | 76 | 81.5517 | 50 | 0.29 | 57 |
IV.PII.HHZ. | 2020-04-11T23:09:33.73 | 0.6 | undecidable | manual | S | 306 | 61.2942 | 50 | -0.29 | 59 |
IV.RUFI.EHZ. | 2020-04-11T23:09:32.38 | 0.3 | undecidable | manual | S | 31 | 56.5989 | 50 | -0.37 | 88 |
IV.CRMI.HNN. | 2020-04-11T23:09:29.71 | 0.3 | undecidable | manual | S | 343 | 45.8208 | 96 | -0.09 | 95 |
IV.SSP9.EHZ. | 2020-04-11T23:09:28.75 | 0.3 | undecidable | manual | P | 76 | 81.5517 | 50 | 0.15 | 87 |
IV.MAGO.CHN. | 2020-04-11T23:09:28.41 | 0.6 | undecidable | manual | S | 250 | 41.8248 | 97 | -0.04 | 64 |
IV.TRIF.CHE. | 2020-04-11T23:09:26.29 | 0.3 | undecidable | manual | S | 212 | 37.3293 | 98 | -0.6 | 85 |
IV.PII.HHZ. | 2020-04-11T23:09:25.99 | 0.3 | undecidable | manual | P | 306 | 61.2942 | 50 | 0.51 | 84 |
IV.RUFI.EHZ. | 2020-04-11T23:09:24.52 | 0.3 | undecidable | manual | P | 31 | 56.5989 | 50 | -0.22 | 90 |
IV.CRMI.HNN. | 2020-04-11T23:09:23.20 | 0.3 | undecidable | manual | P | 343 | 45.8208 | 96 | 0.16 | 93 |
IV.MAGO.CHN. | 2020-04-11T23:09:22.45 | 0.3 | undecidable | manual | P | 250 | 41.8248 | 97 | 0.19 | 93 |
IV.FROS.CHZ. | 2020-04-11T23:09:21.26 | 0.3 | undecidable | manual | S | 178 | 21.2676 | 103 | -0.12 | 98 |
IV.TRIF.CHE. | 2020-04-11T23:09:21.68 | 0.6 | undecidable | manual | P | 212 | 37.3293 | 98 | 0.31 | 61 |
IV.CSNT.HHZ. | 2020-04-11T23:09:18.82 | 0.3 | undecidable | manual | S | 55 | 14.0748 | 109 | -0.18 | 98 |
IV.FROS.CHZ. | 2020-04-11T23:09:18.48 | 0.3 | undecidable | manual | P | 178 | 21.2676 | 103 | 0.29 | 95 |
IV.CSNT.HHZ. | 2020-04-11T23:09:16.91 | 0.3 | undecidable | manual | P | 55 | 14.0748 | 109 | 0.09 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.FROS.CHE. | ML:1.2 | 0.0001325 | 0.7 | AML | other | m | 2020-04-11T23:09:22.98 |
IV.CSNT.HHN. | ML:0.8 | 0.0000703 | 1.54 | AML | other | m | 2020-04-11T23:09:19.91 |
IV.FROS.CHN. | ML:1.3 | 0.0001421581 | 0.3584 | AML | other | m | 2020-04-11T23:09:23.59 |
IV.RUFI.EHE. | ML:1.0 | 0.000022372025 | 0.5632 | AML | other | m | 2020-04-11T23:09:32.64 |
IV.RUFI.EHN. | ML:0.8 | 0.000014482336500000002 | 0.3712 | AML | other | m | 2020-04-11T23:09:32.76 |
IV.PII.HHE. | ML:1.1 | 0.000024531064999999997 | 0.4608 | AML | other | m | 2020-04-11T23:09:35.65 |
IV.PII.HHN. | ML:1.1 | 0.000026858659999999998 | 0.2816 | AML | other | m | 2020-04-11T23:09:35.99 |