Earthquake with magnitude of ML 1.9 on date 09-01-2020 and time 11:57:57 (Italy) in region 3 km SW Busalla (GE)

A magnitude ML 1.9 earthquake occured in region: 3 km SW Busalla (GE), on

  • 09-01-2020 10:57:57 (UTC)
  • 09-01-2020 11:57:57 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.5550, 8.9180 at 8 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Busalla GE 3 5563 5563
Mignanego GE 3 3675 9238
Fraconalto AL 5 336 9574
Serra Riccò GE 5 7885 17459
Campomorone GE 6 6996 24455
Savignone GE 6 3205 27660
Ceranesi GE 6 3875 31535
Ronco Scrivia GE 7 4417 35952
Casella GE 7 3144 39096
Sant'Olcese GE 9 5906 45002
Crocefieschi GE 9 548 45550
Voltaggio AL 9 738 46288
Isola del Cantone GE 11 1540 47828
Vobbia GE 11 409 48237
Montoggio GE 11 2067 50304
Valbrevenna GE 12 798 51102
Carrosio AL 14 510 51612
Bosio AL 14 1227 52839
Mongiardino Ligure AL 15 165 53004
Arquata Scrivia AL 15 6409 59413
Mornese AL 16 737 60150
Genova GE 16 586655 646805
Grondona AL 16 510 647315
Roccaforte Ligure AL 16 136 647451
Davagna GE 17 1884 649335
Casaleggio Boiro AL 17 372 649707
Masone GE 17 3679 653386
Vignole Borbera AL 17 2182 655568
Campo Ligure GE 17 2955 658523
Gavi AL 17 4614 663137
Mele GE 18 2725 665862
Parodi Ligure AL 18 715 666577
Bargagli GE 18 2708 669285
Lerma AL 19 869 670154
Serravalle Scrivia AL 19 6128 676282
Montaldeo AL 19 265 676547
Cabella Ligure AL 19 528 677075
Torriglia GE 20 2311 679386
Rossiglione GE 20 2779 682165
Stazzano AL 20 2486 684651
Borghetto di Borbera AL 20 1966 686617
Rocchetta Ligure AL 20 200 686817

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km N of Genova (586655 inhabitants)
44 Km NE of Savona (61345 inhabitants)
46 Km SE of Alessandria (93943 inhabitants)
68 Km SE of Asti (76202 inhabitants)
73 Km S of Pavia (72576 inhabitants)
83 Km SW of Piacenza (102191 inhabitants)
85 Km S of Vigevano (63310 inhabitants)
88 Km NW of La Spezia (93959 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 1.9 2020-01-09
10:57:57
44.5552 8.9177 8 2020-07-18
21:08:18
Bollettino Sismico Italiano INGV 75583951
Reviewed
Rev100
ML 1.9 2020-01-09
10:57:57
44.5562 8.9182 8 2020-01-09
11:06:56
Sala Sismica INGV-Roma 75408411
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-09 10:57:57 ± 0.08
Latitude 44.5552 ± 0.0054
Longitude 8.9177 ± 0.0038
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 75583951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 511
Semi-minor axis of confidence ellipse (meter) 337
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 169
Circular confidence region, given by single value of horizontal uncertainty (meter) 510.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 172
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.08723
Epicentral distance of station farthest from the epicenter (degree) 0.83817
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 75583951
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-03 09:10:41

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 75408411
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-09 11:06:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.RORO.HHZ. 2020-01-09T10:58:13.68 3.0 undecidable manual P 83.5497 1.58 0
GU.GBOS.HHE. 2020-01-09T10:58:13.71 0.3 undecidable manual P 248 92.241 50 0.27 62
IV.PLMA.HHZ. 2020-01-09T10:58:13.60 0.3 undecidable manual P 127 93.0402 50 0.03 66
GU.CANO.HHZ. 2020-01-09T10:58:11.11 3.0 undecidable manual P 66.2781 1.66 0
GU.PCP.HHZ. 2020-01-09T10:58:08.00 0.3 undecidable manual S 267 29.4483 105 -0.05 73
GU.GORR.HHZ. 2020-01-09T10:58:08.30 0.3 undecidable manual S 79 30.1476 105 0.02 74
IV.QLNO.HHE. 2020-01-09T10:58:06.91 0.3 undecidable manual P 241 52.0035 50 -0.33 67
GU.GORR.HHZ. 2020-01-09T10:58:03.58 0.1 undecidable manual P 79 30.1476 105 -0.12 97
GU.PCP.HHZ. 2020-01-09T10:58:03.59 0.1 undecidable manual P 267 29.4483 105 0.03 98
IT.GNV.HGZ. 2020-01-09T10:58:02.90 0.1 undecidable manual S 175 13.7751 121 -0.09 100
GU.RNCA.HHZ. 2020-01-09T10:58:01.70 0.3 undecidable manual S 164 9.6792 130 -0.13 75
IT.GNV.HGZ. 2020-01-09T10:58:00.78 0.1 undecidable manual P 175 13.7751 121 0.14 99
GU.RNCA.HHZ. 2020-01-09T10:58:00.18 0.1 undecidable manual P 164 9.6792 130 0.21 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RNCA.HHE. ML:2.0 0.001565 0.16 AML other m 2020-01-09T10:58:01.86
GU.RNCA.HHN. ML:2.0 0.001425 0.1 AML other m 2020-01-09T10:58:01.92
GU.PCP.HHN. ML:1.3 0.00011205 0.86 AML other m 2020-01-09T10:58:08.27
GU.PCP.HHE. ML:1.3 0.00010489999999999999 1.38 AML other m 2020-01-09T10:58:09.77
GU.GORR.HHE. ML:1.9 0.0003875 0.66 AML other m 2020-01-09T10:58:10.13
GU.GORR.HHN. ML:2.1 0.000628 0.66 AML other m 2020-01-09T10:58:10.30
GU.CANO.HHE. ML:1.9 0.000134 1.08 AML other m 2020-01-09T10:58:19.34
GU.CANO.HHN. ML:1.8 0.00011449999999999999 1.7 AML other m 2020-01-09T10:58:20.05
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