Istituto Nazionale di Geofisica e Vulcanologia

Earthquake (quarry blast) with magnitude of ML 1.6 on date 27-05-2022 and time 07:53:19 (UTC) in region 6 km NW Escalaplano (CA)

A magnitude ML 1.6 (quarry blast) earthquake occured in region: 6 km NW Escalaplano (CA), on

  • 27-05-2022 07:53:19 (UTC)
  • 27-05-2022 09:53:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.6770, 9.3250 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Escalaplano CA 6 2201 2201
Orroli CA 7 2298 4499
Nurri CA 9 2184 6683
Perdasdefogu OG 10 1957 8640
Goni CA 11 492 9132
Esterzili CA 12 668 9800
Ballao CA 15 831 10631
Siurgus Donigala CA 15 2028 12659
Villanova Tulo CA 15 1108 13767
Serri CA 15 660 14427
Sadali CA 16 971 15398
Ussassai OG 16 575 15973
Mandas CA 17 2201 18174
Escolca CA 17 594 18768
Armungia CA 18 481 19249
Silius CA 18 1202 20451
Seui OG 18 1310 21761
San Basilio CA 19 1251 23012
Gergei CA 19 1236 24248
Gesico CA 20 849 25097

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km N of Quartu Sant'Elena (71125 inhabitants)
54 Km NE of Cagliari (154460 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 1.6 2022-05-27
07:53:19		 39.6767 9.3252 1 2023-01-31
19:03:38		 Bollettino Sismico Italiano INGV 109363851
Reviewed
Rev100 		ML 1.7 2022-05-27
07:53:19		 39.6613 9.385 6 2022-05-27
08:04:15		 Sala Sismica INGV-Roma 105205191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-05-27 07:53:19 ± 0.12
Latitude 39.6767 ± 0.0072
Longitude 9.3252 ± 0.0234
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 109363851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2030
Semi-minor axis of confidence ellipse (meter) 750
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 271
Circular confidence region, given by single value of horizontal uncertainty (meter) 2030.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 148
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.45420
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 109363851
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-09-05 11:02:36

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 105205191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-05-27 08:04:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RESU.HHZ. 2022-05-27T07:55:16.89 3.0 undecidable manual Sn -2.46 0
IV.RM33.EHZ. 2022-05-27T07:55:09.00 3.0 undecidable manual Sn -7.91 0
IV.MDI.HHZ. 2022-05-27T07:55:06.10 3.0 positive manual Pg 11.23 0
IT.DANT.HNZ. 2022-05-27T07:55:05.33 3.0 positive manual Pn -5.66 0
IV.NDIM.HNZ. 2022-05-27T07:54:56.40 3.0 undecidable manual Pg 11.97 0
IV.NOCI.HHZ. 2022-05-27T07:54:55.97 3.0 negative manual Pn 2.37 0
GU.PZZ.HHZ. 2022-05-27T07:54:54.83 3.0 negative manual Pg 13.64 0
IV.TDS.HHZ. 2022-05-27T07:54:51.16 3.0 undecidable manual Pg 6.12 0
IV.CAVT.HHZ. 2022-05-27T07:54:50.26 3.0 undecidable manual Sn -7.5 0
IV.IMOL.HNZ. 2022-05-27T07:54:45.58 3.0 positive manual Pg 5.6 0
IV.PAOL.HHZ. 2022-05-27T07:54:39.24 3.0 undecidable manual Pg 10.35 0
IV.LPEL.HHZ. 2022-05-27T07:54:36.96 3.0 undecidable manual Pg 5.89 0
IV.SFI.EHZ. 2022-05-27T07:54:33.68 3.0 undecidable manual Pn -0.97 0
IV.ARVD.HHZ. 2022-05-27T07:54:32.63 3.0 undecidable manual Pn -2.75 0
IV.MIDA.HHZ. 2022-05-27T07:54:29.72 3.0 negative manual Pn 0.71 0
IV.RM33.EHZ. 2022-05-27T07:54:24.67 3.0 undecidable manual Pn -2.36 0
IV.CSNT.HHZ. 2022-05-27T07:54:20.29 3.0 negative manual Pn -6.73 0
IV.TOLF.HHZ. 2022-05-27T07:54:15.16 3.0 undecidable manual Pg 1.12 0
IV.AGLI.HHE. 2022-05-27T07:53:47.78 0.3 undecidable manual P 355 161.4162 50 0.51 50
IV.BULT.EHZ. 2022-05-27T07:53:37.08 0.1 undecidable manual P 345 95.4378 50 -0.03 88
TV.SU26.HHZ. 2022-05-27T07:53:36.81 0.3 undecidable manual P 230 94.3389 50 -0.12 65
MN.SENA.HHZ. 2022-05-27T07:53:35.58 0.1 undecidable manual P 7 85.8474 50 -0.05 89
IV.DGI.HHZ. 2022-05-27T07:53:33.77 0.1 undecidable manual P 19 75.0693 50 -0.19 88
MN.VSL.HHZ. 2022-05-27T07:53:23.80 0.1 positive manual P 167 20.5683 91 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.VSL.HHE. ML:1.8 0.0004975 0.12 AML other m 2022-05-27T07:53:26.80
MN.VSL.HHN. ML:1.8 0.0005225 0.14 AML other m 2022-05-27T07:53:26.88
IV.DGI.HHN. ML:1.5 0.000046242325 0.2624 AML other m 2022-05-27T07:53:48.22
IV.DGI.HNN. ML:1.5 0.000046035495 0.1856 AML other m 2022-05-27T07:53:48.75
IV.DGI.HHE. ML:1.5 0.00004548571 0.2368 AML other m 2022-05-27T07:53:49.31
IV.DGI.HNE. ML:1.5 0.00004444865 0.2496 AML other m 2022-05-27T07:53:49.31
MN.SENA.HHE. ML:1.7 0.00006675000000000001 0.7 AML other m 2022-05-27T07:53:51.52
IV.BULT.EHE. ML:1.8 0.00006665000000000001 0.42 AML other m 2022-05-27T07:53:51.74
IV.BULT.EHN. ML:1.8 0.00007125000000000001 1.58 AML other m 2022-05-27T07:53:52.98
MN.SENA.HHN. ML:1.7 0.0000616 0.48 AML other m 2022-05-27T07:53:52.57
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