Earthquake (quarry blast) with magnitude of ML 1.2 on date 08-07-2022 and time 06:25:54 (UTC) in region 4 km S Ottana (NU)

A magnitude ML 1.2 (quarry blast) earthquake occured in region: 4 km S Ottana (NU), on

  • 08-07-2022 06:25:54 (UTC)
  • 08-07-2022 08:25:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.2020, 9.0580 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Ottana NU 4 2334 2334
Olzai NU 8 875 3209
Sarule NU 10 1691 4900
Ollolai NU 11 1318 6218
Orani NU 12 2891 9109
Sedilo OR 12 2144 11253
Noragugume NU 12 324 11577
Orotelli NU 12 2054 13631
Oniferi NU 13 898 14529
Gavoi NU 13 2695 17224
Teti NU 13 677 17901
Dualchi NU 14 625 18526
Nughedu Santa Vittoria OR 14 489 19015
Bidonì OR 14 148 19163
Ovodda NU 15 1621 20784
Austis NU 15 828 21612
Sorradile OR 15 386 21998
Lodine NU 15 348 22346
Bolotana NU 16 2656 25002
Lei NU 17 516 25518
Tiana NU 17 503 26021
Soddì OR 17 115 26136
Aidomaggiore OR 17 460 26596
Silanus NU 17 2177 28773
Illorai SS 18 886 29659
Ardauli OR 18 874 30533
Tadasuni OR 18 152 30685
Neoneli OR 18 669 31354
Boroneddu OR 19 151 31505
Fonni NU 19 3970 35475
Ortueri NU 19 1175 36650
Mamoiada NU 19 2555 39205
Sorgono NU 20 1693 40898

Municipalities with at least 50000 inhabitants

An earthquake occurred to
72 Km SE of Sassari (127525 inhabitants)
89 Km SW of Olbia (59368 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 1.2 2022-07-08
06:25:54
40.2017 9.0582 1 2023-01-31
19:03:55
Bollettino Sismico Italiano INGV 111552981
Reviewed
Rev100
ML 1.2 2022-07-08
06:25:55
40.2297 9.1005 7 2022-07-08
06:46:50
Sala Sismica INGV-Roma 106946861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-07-08 06:25:54 ± 0.11
Latitude 40.2017 ± 0.0063
Longitude 9.0582 ± 0.0118
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 111552981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 980
Semi-minor axis of confidence ellipse (meter) 660
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 280
Circular confidence region, given by single value of horizontal uncertainty (meter) 980.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 155
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.30757
Epicentral distance of station farthest from the epicenter (degree) 1.16282
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 111552981
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-11-07 11:39:10

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 106946861
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-07-08 06:46:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
TV.SU26.HHZ. 2022-07-08T06:26:17.39 0.3 undecidable manual P 202 129.0708 50 0.2 61
IV.AGLI.HHZ. 2022-07-08T06:26:12.95 0.1 undecidable manual P 5 103.119 50 -0.24 86
MN.VSL.HHZ. 2022-07-08T06:26:09.88 0.3 undecidable manual P 161 82.8504 50 -0.19 67
IV.DGI.HHZ. 2022-07-08T06:26:04.25 0.1 undecidable manual P 74 48.2184 91 0.07 98
MN.SENA.HHZ. 2022-07-08T06:26:03.20 0.1 undecidable manual P 51 43.1235 91 0.03 100
IV.BULT.EHZ. 2022-07-08T06:26:01.48 0.1 undecidable manual P 357 34.1436 91 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BULT.EHN. ML:1.0 0.000040619105000000006 0.1824 AML other m 2022-07-08T06:26:06.57
IV.BULT.EHE. ML:1.0 0.000046678554999999994 0.08 AML other m 2022-07-08T06:26:06.69
IV.DGI.HHN. ML:1.2 0.00003792361 0.24 AML other m 2022-07-08T06:26:10.24
IV.DGI.HHE. ML:1.2 0.000038038925 0.5792 AML other m 2022-07-08T06:26:11.43
MN.VSL.HHN. ML:1.7 0.000057999999999999994 0.12 AML other m 2022-07-08T06:26:23.76
MN.VSL.HHE. ML:1.6 0.00005605 0.44 AML other m 2022-07-08T06:26:24.52
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download