A magnitude ML 0.9 (quarry blast) earthquake occured in region: 2 km S Battifollo (CN), on
and geographic coordinates (lat, lon) 44.3020, 8.0160 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 |
---|---|---|---|---|
Battifollo | CN | 2 | 219 | 219 |
Bagnasco | CN | 2 | 1035 | 1254 |
Lisio | CN | 3 | 201 | 1455 |
Viola | CN | 4 | 391 | 1846 |
Scagnello | CN | 4 | 194 | 2040 |
Massimino | SV | 5 | 113 | 2153 |
Nucetto | CN | 6 | 430 | 2583 |
Priola | CN | 6 | 701 | 3284 |
Perlo | CN | 7 | 116 | 3400 |
Monasterolo Casotto | CN | 7 | 89 | 3489 |
Mombasiglio | CN | 8 | 609 | 4098 |
Pamparato | CN | 9 | 302 | 4400 |
Ceva | CN | 10 | 5782 | 10182 |
Roburent | CN | 10 | 495 | 10677 |
Priero | CN | 10 | 529 | 11206 |
Torre Mondovì | CN | 11 | 498 | 11704 |
Castelnuovo di Ceva | CN | 11 | 110 | 11814 |
Calizzano | SV | 11 | 1475 | 13289 |
Garessio | CN | 12 | 3244 | 16533 |
Lesegno | CN | 12 | 794 | 17327 |
Murialdo | SV | 12 | 841 | 18168 |
San Michele Mondovì | CN | 12 | 2003 | 20171 |
Sale delle Langhe | CN | 12 | 486 | 20657 |
Montaldo di Mondovì | CN | 12 | 557 | 21214 |
Sale San Giovanni | CN | 12 | 183 | 21397 |
Roascio | CN | 13 | 97 | 21494 |
Montezemolo | CN | 13 | 259 | 21753 |
Castellino Tanaro | CN | 14 | 312 | 22065 |
Vicoforte | CN | 15 | 3136 | 25201 |
Torresina | CN | 15 | 52 | 25253 |
Niella Tanaro | CN | 15 | 1046 | 26299 |
Osiglia | SV | 15 | 444 | 26743 |
Briaglia | CN | 15 | 318 | 27061 |
Paroldo | CN | 15 | 211 | 27272 |
Bardineto | SV | 15 | 756 | 28028 |
Roccavignale | SV | 16 | 752 | 28780 |
Igliano | CN | 16 | 74 | 28854 |
Monastero di Vasco | CN | 16 | 1297 | 30151 |
Cigliè | CN | 17 | 190 | 30341 |
Frabosa Soprana | CN | 17 | 759 | 31100 |
Rocca Cigliè | CN | 17 | 142 | 31242 |
Camerana | CN | 17 | 631 | 31873 |
Millesimo | SV | 17 | 3383 | 35256 |
Marsaglia | CN | 17 | 245 | 35501 |
Frabosa Sottana | CN | 17 | 1497 | 36998 |
Saliceto | CN | 17 | 1323 | 38321 |
Bormida | SV | 18 | 387 | 38708 |
Mondovì | CN | 18 | 22484 | 61192 |
Cengio | SV | 18 | 3563 | 64755 |
Bastia Mondovì | CN | 18 | 669 | 65424 |
Ormea | CN | 19 | 1617 | 67041 |
Cosseria | SV | 19 | 1105 | 68146 |
Plodio | SV | 19 | 650 | 68796 |
Murazzano | CN | 19 | 834 | 69630 |
Mombarcaro | CN | 19 | 268 | 69898 |
Erli | SV | 20 | 245 | 70143 |
Monesiglio | CN | 20 | 645 | 70788 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 0.9 | 2021-05-20 15:39:32 |
44.302 | 8.0158 | 1 | 2021-12-29 11:12:16 |
Bollettino Sismico Italiano INGV | 93580051 |
Reviewed Rev100 |
ML 0.9 | 2021-05-20 15:39:32 |
44.2738 | 8.0335 | 9 | 2021-05-20 15:48:35 |
Sala Sismica INGV-Roma | 90297431 |
Field | Value |
---|---|
Time (UTC) | 2021-05-20 15:39:32 ± 0.35 |
Latitude | 44.3020 ± 0.0288 |
Longitude | 8.0158 ± 0.0176 |
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 | 93580051 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 3220 |
Semi-minor axis of confidence ellipse (meter) | 1410 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 358 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 3220.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 184 |
Number of associated phases, regardless of their use for origin computation | 5 |
Number of defining phases | 5 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.5 |
Epicentral distance of station closest to the epicenter (degree) | 0.13939 |
Epicentral distance of station farthest from the epicenter (degree) | 0.43347 |
Number of stations at which the event was observed | 5 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.2 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 93580051 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-08-02 23:04:23 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.2 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 90297431 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-05-20 15:48:35 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.ENR.HHZ. | 2021-05-20T15:39:41.44 | 0.1 | undecidable | manual | P | 261 | 48.1185 | 91 | -0.5 | 87 |
IV.QLNO.HHZ. | 2021-05-20T15:39:37.67 | 0.1 | undecidable | manual | P | 85 | 26.3514 | 91 | 0.11 | 98 |
GU.RORO.HHZ. | 2021-05-20T15:39:36.48 | 0.1 | undecidable | manual | P | 169 | 21.3675 | 91 | -0.1 | 99 |
GU.CANO.HHZ. | 2021-05-20T15:39:36.33 | 0.1 | undecidable | manual | P | 121 | 20.4684 | 91 | -0.07 | 100 |
GU.GBOS.HHZ. | 2021-05-20T15:39:35.96 | 0.1 | undecidable | manual | P | 244 | 15.4734 | 92 | 0.56 | 90 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.GBOS.HHE. | ML:0.3 | 0.000025159769999999997 | 0.0896 | AML | other | m | 2021-05-20T15:39:36.06 |
IV.QLNO.HHE. | ML:0.8 | 0.00004024328 | 0.1536 | AML | other | m | 2021-05-20T15:39:38.07 |
GU.GBOS.HHN. | ML:0.7 | 0.000052699999999999993 | 0.18 | AML | other | m | 2021-05-20T15:39:38.26 |
GU.CANO.HHN. | ML:1.1 | 0.00009620000000000001 | 1.76 | AML | other | m | 2021-05-20T15:39:39.96 |
GU.CANO.HHE. | ML:0.9 | 0.00006656642 | 0.2816 | AML | other | m | 2021-05-20T15:39:39.74 |
IV.QLNO.HHN. | ML:0.9 | 0.000049925565000000006 | 0.1408 | AML | other | m | 2021-05-20T15:39:41.75 |
GU.ENR.HHE. | ML:1.0 | 0.000025636929999999997 | 0.064 | AML | other | m | 2021-05-20T15:39:42.07 |
GU.ENR.HHN. | ML:1.0 | 0.00002589934 | 0.1024 | AML | other | m | 2021-05-20T15:39:48.85 |