A magnitude ML 0.2 (quarry blast) earthquake occured in region: 4 km SE Pietralunga (PG), on
and geographic coordinates (lat, lon) 43.4220, 12.4800 at 0 km depth.
The earthquake was located by: Bollettino Sismico Italiano INGV.
Event type: quarry blast.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 |
---|---|---|---|---|
Pietralunga | PG | 4 | 2111 | 2111 |
Gubbio | PG | 11 | 32216 | 34327 |
Cantiano | PU | 13 | 2245 | 36572 |
Montone | PG | 14 | 1680 | 38252 |
Scheggia e Pascelupo | PG | 15 | 1393 | 39645 |
Apecchio | PU | 16 | 1882 | 41527 |
Umbertide | PG | 18 | 16681 | 58208 |
Piobbico | PU | 19 | 2029 | 60237 |
Cagli | PU | 20 | 8731 | 68968 |
CittĂ di Castello | PG | 20 | 39913 | 108881 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 0.2 | 2021-09-11 14:04:20 |
43.4222 | 12.4803 | 1 | 2022-03-30 13:04:40 |
Bollettino Sismico Italiano INGV | 101756741 |
Reviewed Rev100 |
ML 0.4 | 2021-09-11 14:04:19 |
43.4288 | 12.4637 | 9 | 2021-09-11 14:10:51 |
Sala Sismica INGV-Roma | 95306331 |
Field | Value |
---|---|
Time (UTC) | 2021-09-11 14:04:20 ± 0.08 |
Latitude | 43.4222 ± 0.0054 |
Longitude | 12.4803 ± 0.0074 |
Depth (km) | 1 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | quarry blast |
Origin ID | 101756741 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 660 |
Semi-minor axis of confidence ellipse (meter) | 510 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 313 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 660.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 96 |
Number of associated phases, regardless of their use for origin computation | 9 |
Number of defining phases | 9 |
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) | 0.05216 |
Epicentral distance of station farthest from the epicenter (degree) | 0.20235 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 0.2 |
Uncertainty | 0.4 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 101756741 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2022-03-07 15:06:45 |
Field | Value |
---|---|
Value | 0.4 |
Uncertainty | 0.3 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 95306331 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-09-11 14:10:51 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.NARO.HHZ. | 2021-09-11T14:04:24.42 | 0.3 | undecidable | manual | P | 21 | 22.4553 | 91 | -0.38 | 68 |
IV.MURB.HHZ. | 2021-09-11T14:04:23.95 | 0.3 | undecidable | manual | P | 169 | 17.9709 | 92 | 0.03 | 74 |
IV.ATSC.EHZ. | 2021-09-11T14:04:23.63 | 0.3 | undecidable | manual | P | 89 | 16.5723 | 92 | -0.01 | 74 |
IV.ATPC.HNE. | 2021-09-11T14:04:22.00 | 0.3 | undecidable | manual | P | 344 | 6.7932 | 94 | 0.33 | 70 |
IV.ATFO.HNZ. | 2021-09-11T14:04:22.45 | 0.3 | undecidable | manual | P | 130 | 9.5793 | 93 | 0.21 | 72 |
IV.ATLO.EHZ. | 2021-09-11T14:04:22.77 | 0.1 | undecidable | manual | P | 206 | 13.2756 | 92 | -0.2 | 95 |
IV.ATVO.HHZ. | 2021-09-11T14:04:21.77 | 0.1 | positive | manual | P | 233 | 7.3815 | 94 | -0.03 | 100 |
IV.TB03.DH1.01 | 2021-09-11T14:04:21.57 | 0.1 | undecidable | manual | P | 248 | 6.0939 | 95 | 0.03 | 100 |
IV.TB01.DHZ.01 | 2021-09-11T14:04:21.52 | 0.1 | undecidable | manual | P | 219 | 5.7942 | 95 | 0.05 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NARO.HHN. | ML:-0.2 | 0.0000059494760000000006 | 0.064 | AML | other | m | 2021-09-11T14:04:28.28 |
IV.MURB.HHE. | ML:0.6 | 0.000036145140000000003 | 0.2624 | AML | other | m | 2021-09-11T14:04:28.68 |
IV.MURB.HHN. | ML:0.6 | 0.000032599535 | 0.256 | AML | other | m | 2021-09-11T14:04:28.74 |
IV.NARO.HHE. | ML:-0.2 | 0.000004789773000000001 | 0.0448 | AML | other | m | 2021-09-11T14:04:29.07 |