Earthquake with magnitude of ML 1.6 on date 28-08-2022 and time 09:40:26 (Italy) in region Confine Italia Francia (FRANCIA)

A magnitude ML 1.6 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 28-08-2022 07:40:26 (UTC)
  • 28-08-2022 09:40:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2360, 6.7530 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
66 Km W of Cuneo (56081 inhabitants)
95 Km W of Sanremo (54807 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 2022-08-28
07:40:26
44.2358 6.7533 10 2023-01-31
19:03:46
Bollettino Sismico Italiano INGV 109889911
Reviewed
Rev100
ML 1.6 2022-08-28
07:40:26
44.232 6.7593 13 2022-08-28
07:52:52
Sala Sismica INGV-Roma 109029611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-08-28 07:40:26 ± 0.31
Latitude 44.2358 ± 0.0117
Longitude 6.7533 ± 0.0213
Depth (km) 10 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 109889911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1749
Semi-minor axis of confidence ellipse (meter) 941
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 236
Circular confidence region, given by single value of horizontal uncertainty (meter) 1750.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 190
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.37412
Epicentral distance of station farthest from the epicenter (degree) 1.31571
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 109029611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-08-28 07:52:52

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 109889911
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-01-16 16:55:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.GBOS.HHZ. 2022-08-28T07:40:52.00 0.3 undecidable manual S 89 86.3469 50 -0.1 73
GU.MGRO.HHZ. 2022-08-28T07:40:52.75 0.6 undecidable manual S 104 86.6466 50 0.57 43
GU.PCP.HHZ. 2022-08-28T07:40:50.86 0.3 undecidable manual P 76 146.0427 50 0.43 60
GU.BHB.HHZ. 2022-08-28T07:40:50.16 0.3 undecidable manual S 31 77.7666 50 0.35 70
GU.RRL.HHE. 2022-08-28T07:40:49.58 0.6 undecidable manual S 2 76.0683 50 0.23 48
FR.SAOF.HHE.00 2022-08-28T07:40:47.71 0.6 undecidable manual S 113 69.4749 50 0.12 50
GU.CANO.HHZ. 2022-08-28T07:40:46.48 0.1 undecidable manual P 91 117.993 50 0.38 86
GU.RSP.HHZ. 2022-08-28T07:40:45.31 0.1 undecidable manual P 22 108.9132 50 0.6 82
RD.ORIF.BHE. 2022-08-28T07:40:43.33 0.3 undecidable manual P 318 102.4197 50 -0.38 66
GU.ENR.HHE. 2022-08-28T07:40:42.78 0.3 undecidable manual S 91 52.8027 50 -0.38 73
GU.MGRO.HHZ. 2022-08-28T07:40:41.40 0.3 undecidable manual P 104 86.6466 50 0.13 72
GU.STV.HHE. 2022-08-28T07:40:41.24 0.3 undecidable manual S 89 45.5211 50 0.04 79
GU.GBOS.HHZ. 2022-08-28T07:40:41.27 0.1 undecidable manual P 89 86.3469 50 0.04 98
GU.BHB.HHZ. 2022-08-28T07:40:40.18 0.3 undecidable manual P 31 77.7666 50 0.28 71
GU.BURY.HHE. 2022-08-28T07:40:40.82 1.0 undecidable manual P 128 81.4518 50 0.34 23
GU.PZZ.HHZ. 2022-08-28T07:40:39.80 0.1 undecidable manual S 44 41.5251 50 -0.34 100
GU.RRL.HHE. 2022-08-28T07:40:39.49 0.3 undecidable manual P 2 76.0683 50 -0.15 73
FR.SAOF.HHE.00 2022-08-28T07:40:38.56 0.3 undecidable manual P 113 69.4749 50 -0.06 75
GU.ENR.HHE. 2022-08-28T07:40:35.79 0.3 undecidable manual P 91 52.8027 50 -0.27 75
GU.STV.HHE. 2022-08-28T07:40:34.48 0.1 undecidable manual P 89 45.5211 50 -0.46 97
GU.PZZ.HHZ. 2022-08-28T07:40:33.89 0.1 undecidable manual P 44 41.5251 50 -0.43 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PZZ.HHE. ML:2.0 0.0003095 0.22 AML other m 2022-08-28T07:40:40.78
GU.PZZ.HHN. ML:1.8 0.0002075 0.66 AML other m 2022-08-28T07:40:41.05
GU.BHB.HHE. ML:1.6 0.000060150000000000005 0.5 AML other m 2022-08-28T07:40:50.87
GU.BHB.HHN. ML:1.6 0.0000593 0.54 AML other m 2022-08-28T07:40:51.97
GU.GBOS.HHE. ML:1.6 0.00004495 0.94 AML other m 2022-08-28T07:40:54.49
GU.MGRO.HHE. ML:1.6 0.00004565 0.74 AML other m 2022-08-28T07:40:54.24
GU.GBOS.HHN. ML:1.6 0.0000431 1.52 AML other m 2022-08-28T07:40:55.80
GU.MGRO.HHN. ML:1.6 0.000047350000000000006 1.04 AML other m 2022-08-28T07:40:56.33
GU.RSP.HHN. ML:1.5 0.000028650000000000002 0.16 AML other m 2022-08-28T07:40:59.86
GU.RSP.HHE. ML:1.5 0.000032149999999999995 1.24 AML other m 2022-08-28T07:41:00.98
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