Earthquake (mining explosion) with magnitude of ML 1.1 on date 26-07-2024 and time 10:20:15 (UTC) in region 4 km W Macomer (NU)

A magnitude ML 1.1 (mining explosion) earthquake occured in region: 4 km W Macomer (NU), on

  • 26-07-2024 10:20:15 (UTC)
  • 26-07-2024 12:20:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.2750, 8.7420 at 1 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Event type: mining explosion.

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
Macomer NU 4 10226 10226
Birori NU 6 540 10766
Sindia NU 7 1733 12499
Bortigali NU 8 1342 13841
Borore NU 8 2143 15984
Silanus NU 13 2177 18161
Semestene SS 14 163 18324
Sagama OR 14 197 18521
Dualchi NU 14 625 19146
Scano di Montiferro OR 15 1522 20668
Aidomaggiore OR 15 460 21128
Pozzomaggiore SS 16 2646 23774
Lei NU 16 516 24290
Bonorva SS 16 3470 27760
Noragugume NU 16 324 28084
Suni OR 16 1118 29202
Tinnura OR 16 257 29459
Padria SS 17 635 30094
Flussio OR 17 455 30549
Santu Lussurgiu OR 17 2383 32932
Sennariolo OR 17 183 33115
Cuglieri OR 17 2697 35812
Norbello OR 17 1210 37022
Mara SS 18 622 37644
Cossoine SS 18 860 38504
Modolo OR 18 171 38675
Abbasanta OR 18 2747 41422
Magomadas OR 18 661 42083
Ghilarza OR 19 4489 46572
Sedilo OR 19 2144 48716
Tresnuraghes OR 19 1178 49894
Bolotana NU 19 2656 52550
Giave SS 20 551 53101
Soddì OR 20 115 53216

Municipalities with at least 50000 inhabitants

An earthquake occurred to
53 Km S of Sassari (127525 inhabitants)
97 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
Reviewed
Rev100
ML 1.1 2024-07-26
10:20:15
40.2753 8.7418 1 2024-07-26
11:01:42
Sala Sismica INGV-Roma 130183631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-07-26 10:20:15 ± 0.11
Latitude 40.2753 ± 0.0054
Longitude 8.7418 ± 0.0071
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type mining explosion
Origin ID 130183631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 630
Semi-minor axis of confidence ellipse (meter) 570
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 10
Circular confidence region, given by single value of horizontal uncertainty (meter) 630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.04317
Epicentral distance of station farthest from the epicenter (degree) 1.16732
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 130183631
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-07-26 11:01:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.AGLI.HHZ. 2024-07-26T10:20:46.57 0.3 undecidable manual S 21 101.2209 50 -0.19 85
4P.IT26A.HHZ. 2024-07-26T10:20:42.81 0.6 undecidable manual S 45 85.248 50 0.3 57
TV.SU26.HHE. 2024-07-26T10:20:38.15 0.3 undecidable manual P 190 129.5703 50 0.4 77
MN.SENA.HHZ. 2024-07-26T10:20:36.57 0.3 undecidable manual S 73 63.2922 50 -0.07 94
IV.CGL.HHE. 2024-07-26T10:20:34.88 0.3 undecidable manual P 155 111.3996 50 -0.05 86
IV.AGLI.HHZ. 2024-07-26T10:20:33.38 0.3 undecidable manual P 21 101.2209 50 0.01 89
MN.VSL.HHE. 2024-07-26T10:20:33.49 0.3 undecidable manual P 148 102.0201 50 0 89
4P.IT26A.HHZ. 2024-07-26T10:20:30.75 0.3 undecidable manual P 45 85.248 50 -0.16 89
4P.IT24A.HHZ. 2024-07-26T10:20:29.56 0.3 undecidable manual S 308 42.0246 91 -0.07 98
IV.BULT.EHZ. 2024-07-26T10:20:28.29 0.6 undecidable manual S 44 36.1416 92 0.68 56
MN.SENA.HHZ. 2024-07-26T10:20:26.95 0.3 undecidable manual P 73 63.2922 50 -0.57 84
4P.IT24A.HHZ. 2024-07-26T10:20:23.57 0.3 undecidable manual P 308 42.0246 91 0.1 97
IV.BULT.EHZ. 2024-07-26T10:20:22.28 0.3 undecidable manual P 44 36.1416 92 -0.02 100
4P.IT23A.HHZ. 2024-07-26T10:20:17.23 3.0 undecidable manual S 4.7952 0.47 0
4P.IT23A.HHZ. 2024-07-26T10:20:16.14 3.0 undecidable manual P 4.7952 0.1 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
4P.IT23A.HHE. ML:0.0 0.02130833 0.34 AML other m 2024-07-26T10:20:19.85
IV.BULT.EHN. ML:0.6 0.0000163325245 0.24 AML other m 2024-07-26T10:20:30.66
IV.BULT.EHE. ML:0.7 0.00002163461 0.18 AML other m 2024-07-26T10:20:29.55
4P.IT24A.HHE. ML:1.3 0.00007165664499999999 0.38 AML other m 2024-07-26T10:20:30.16
4P.IT24A.HHN. ML:1.3 0.000072044385 0.42 AML other m 2024-07-26T10:20:32.84
4P.IT26A.HHN. ML:1.3 0.00002376974 0.08 AML other m 2024-07-26T10:20:45.50
4P.IT26A.HHE. ML:1.4 0.00002877809 0.2 AML other m 2024-07-26T10:20:46.50
IV.AGLI.HHE. ML:1.0 0.000008197886500000001 2.24 AML other m 2024-07-26T10:20:46.12
IV.AGLI.HHN. ML:0.7 0.0000040780199999999995 0.14 AML other m 2024-07-26T10:20:47.73
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download