Earthquake with magnitude of ML 1.3 on date 19-08-2021 and time 06:39:23 (Italy) in region 2 km NE Savignone (GE)

A magnitude ML 1.3 earthquake occured in region: 2 km NE Savignone (GE), on

  • 19-08-2021 04:39:23 (UTC)
  • 19-08-2021 06:39:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.5750, 9.0010 at 10 km depth.

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

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
Savignone GE 2 3205 3205
Crocefieschi GE 2 548 3753
Vobbia GE 4 409 4162
Busalla GE 4 5563 9725
Casella GE 4 3144 12869
Ronco Scrivia GE 5 4417 17286
Valbrevenna GE 6 798 18084
Montoggio GE 7 2067 20151
Mignanego GE 9 3675 23826
Mongiardino Ligure AL 9 165 23991
Isola del Cantone GE 9 1540 25531
Serra Riccò GE 9 7885 33416
Fraconalto AL 10 336 33752
Sant'Olcese GE 10 5906 39658
Campomorone GE 11 6996 46654
Ceranesi GE 12 3875 50529
Roccaforte Ligure AL 12 136 50665
Cabella Ligure AL 13 528 51193
Voltaggio AL 14 738 51931
Torriglia GE 14 2311 54242
Grondona AL 14 510 54752
Davagna GE 14 1884 56636
Carrega Ligure AL 15 84 56720
Propata GE 15 142 56862
Albera Ligure AL 15 325 57187
Rocchetta Ligure AL 15 200 57387
Arquata Scrivia AL 15 6409 63796
Bargagli GE 16 2708 66504
Carrosio AL 16 510 67014
Cantalupo Ligure AL 17 527 67541
Vignole Borbera AL 17 2182 69723
Rondanina GE 17 62 69785
Borghetto di Borbera AL 18 1966 71751
Lumarzo GE 18 1535 73286
Bosio AL 18 1227 74513
Fascia GE 19 81 74594
Genova GE 19 586655 661249
Serravalle Scrivia AL 20 6128 667377
Stazzano AL 20 2486 669863

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NE of Genova (586655 inhabitants)
48 Km SE of Alessandria (93943 inhabitants)
51 Km NE of Savona (61345 inhabitants)
69 Km S of Pavia (72576 inhabitants)
73 Km E of Asti (76202 inhabitants)
76 Km SW of Piacenza (102191 inhabitants)
83 Km S of Vigevano (63310 inhabitants)
84 Km NW of La Spezia (93959 inhabitants)
100 Km S of Milano (1345851 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 1.3 2021-08-19
04:39:23
44.5753 9.0013 10 2021-08-19
04:49:04
Sala Sismica INGV-Roma 94357371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-19 04:39:23 ± 0.21
Latitude 44.5753 ± 0.0135
Longitude 9.0013 ± 0.0114
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 94357371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1541
Semi-minor axis of confidence ellipse (meter) 501
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 161
Circular confidence region, given by single value of horizontal uncertainty (meter) 1540.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 177
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.11062
Epicentral distance of station farthest from the epicenter (degree) 0.65830
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 94357371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-19 04:49:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.CANO.HHE. 2021-08-19T04:39:46.29 0.6 undecidable manual S 236 73.0713 50 0.46 54
IV.MSSA.HHZ. 2021-08-19T04:39:39.09 0.3 undecidable manual S 125 50.0166 50 -0.58 82
GU.CANO.HHE. 2021-08-19T04:39:36.64 0.3 undecidable manual P 236 73.0713 50 0.19 86
GU.PCP.HHZ. 2021-08-19T04:39:35.63 0.6 undecidable manual S 264 36.2415 50 -0.37 59
IV.MSSA.HHZ. 2021-08-19T04:39:33.66 0.3 undecidable manual P 125 50.0166 50 0.77 76
GU.GORR.HHZ. 2021-08-19T04:39:32.40 0.6 undecidable manual S 81 23.2545 113 -0.02 65
GU.PCP.HHZ. 2021-08-19T04:39:30.52 0.3 undecidable manual P 264 36.2415 50 -0.26 91
IT.GNV.HGZ. 2021-08-19T04:39:30.74 0.3 undecidable manual S 199 16.872 121 0.31 93
GU.GORR.HHZ. 2021-08-19T04:39:28.76 0.3 undecidable manual P 81 23.2545 113 0.05 97
GU.RNCA.HHZ. 2021-08-19T04:39:28.67 0.3 undecidable manual S 199 12.2766 129 -0.44 91
IT.GNV.HGZ. 2021-08-19T04:39:27.58 0.3 undecidable manual P 199 16.872 121 0.02 99
GU.RNCA.HHZ. 2021-08-19T04:39:26.79 0.3 undecidable manual P 199 12.2766 129 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RNCA.HHE. ML:1.2 0.0001684465 0.1024 AML other m 2021-08-19T04:39:29.43
GU.RNCA.HHN. ML:1.3 0.000209 0.12 AML other m 2021-08-19T04:39:29.68
GU.GORR.HHN. ML:1.4 0.00018139171999999998 0.2208 AML other m 2021-08-19T04:39:32.86
GU.GORR.HHE. ML:1.4 0.00017579885 0.2208 AML other m 2021-08-19T04:39:33.61
IV.MSSA.HHN. ML:1.4 0.00006637578500000001 0.0992 AML other m 2021-08-19T04:39:43.39
IV.MSSA.HHE. ML:1.8 0.00015289550000000001 0.0992 AML other m 2021-08-19T04:39:40.31
GU.PCP.HHE. ML:0.8 0.000023494040000000002 0.16 AML other m 2021-08-19T04:39:37.35
GU.PCP.HHN. ML:0.7 0.00002190054 0.1408 AML other m 2021-08-19T04:39:36.79
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