Earthquake (quarry blast) with magnitude of ML 1.5 on date 30-09-2022 and time 07:54:33 (UTC) in region 6 km NW Escalaplano (CA)

A magnitude ML 1.5 (quarry blast) earthquake occured in region: 6 km NW Escalaplano (CA), on

  • 30-09-2022 07:54:33 (UTC)
  • 30-09-2022 09:54:33 (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.

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 1.5 2022-09-30
07:54:33
39.6767 9.3253 1 2024-03-01
15:28:14
Bollettino Sismico Italiano INGV 113475251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-30 07:54:33 ± 0.08
Latitude 39.6767 ± 0.0045
Longitude 9.3253 ± 0.0164
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 113475251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1440
Semi-minor axis of confidence ellipse (meter) 470
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 277
Circular confidence region, given by single value of horizontal uncertainty (meter) 1440.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 149
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) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.18526
Epicentral distance of station farthest from the epicenter (degree) 0.84986
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 113475251
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-01-11 15:21:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
TV.SU26.HHZ. 2022-09-30T07:54:51.20 0.3 undecidable manual P 230 94.3389 50 0.08 66
MN.SENA.HHZ. 2022-09-30T07:54:49.84 0.1 undecidable manual P 7 85.8474 50 0.03 91
IV.DGI.HHZ. 2022-09-30T07:54:48.10 0.1 undecidable manual P 18 75.0693 50 -0.04 92
IV.CGL.HHZ. 2022-09-30T07:54:40.56 0.1 undecidable manual P 184 34.5432 91 -0.17 97
MN.VSL.HHZ. 2022-09-30T07:54:38.05 0.1 undecidable manual P 167 20.5683 91 0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.DGI.HNE. ML:1.7 0.00007226097 1.7792 AML other m 2022-09-30T07:54:59.05
IV.DGI.HHN. ML:1.5 0.00004360451499999999 1.44 AML other m 2022-09-30T07:54:58.54
MN.SENA.HHE. ML:1.4 0.00002916363 2.1632 AML other m 2022-09-30T07:55:01.13
MN.SENA.HHN. ML:1.4 0.00003194023999999999 2.3616 AML other m 2022-09-30T07:54:59.95
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