Earthquake with magnitude of ML 1.5 on date 23-01-2020 and time 00:04:58 (Italy) in region 5 km W Campomorone (GE)

A magnitude ML 1.5 earthquake occured in region: 5 km W Campomorone (GE), on

  • 22-01-2020 23:04:58 (UTC)
  • 23-01-2020 00:04:58 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.49, 8.83 at 9 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
Campomorone GE 5 6996 6996
Ceranesi GE 5 3875 10871
Mignanego GE 8 3675 14546
Mele GE 8 2725 17271
Serra Riccò GE 9 7885 25156
Masone GE 10 3679 28835
Sant'Olcese GE 11 5906 34741
Campo Ligure GE 12 2955 37696
Genova GE 12 586655 624351
Fraconalto AL 12 336 624687
Busalla GE 13 5563 630250
Casella GE 14 3144 633394
Voltaggio AL 15 738 634132
Rossiglione GE 15 2779 636911
Savignone GE 15 3205 640116
Arenzano GE 15 11519 651635
Ronco Scrivia GE 17 4417 656052
Tiglieto GE 17 546 656598
Montoggio GE 17 2067 658665
Mornese AL 18 737 659402
Casaleggio Boiro AL 18 372 659774
Bosio AL 18 1227 661001
Cogoleto GE 18 9172 670173
Crocefieschi GE 19 548 670721
Lerma AL 19 869 671590
Urbe SV 19 700 672290
Carrosio AL 19 510 672800

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km NW of Genova (586655 inhabitants)
34 Km NE of Savona (61345 inhabitants)
50 Km SE of Alessandria (93943 inhabitants)
67 Km SE of Asti (76202 inhabitants)
82 Km SW of Pavia (72576 inhabitants)
90 Km W of La Spezia (93959 inhabitants)
92 Km S of Vigevano (63310 inhabitants)
93 Km SW of Piacenza (102191 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.5 2020-01-22
23:04:58
44.49 8.83 9 2020-01-22
23:09:55
Sala Sismica INGV-Roma 75750611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-22 23:04:58 ± 0.17
Latitude 44.49 ± 0.02
Longitude 8.83 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 75750611

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1723
Semi-minor axis of confidence ellipse (meter) 491
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 177
Circular confidence region, given by single value of horizontal uncertainty (meter) 1720
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.42
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.22218
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 75750611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-22 23:09:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.NDIM.HHZ. 2020-01-22T23:05:24.98 3.0 positive manual Pn 0.12 0
GU.PZZ.HHZ. 2020-01-22T23:05:21.47 0.1 undecidable manual P 271 1.2222 50 0.7 69
GU.CANO.HHZ. 2020-01-22T23:05:16.01 0.3 undecidable manual S 237 0.509 50 -0.19 70
GU.ROTM.HHZ. 2020-01-22T23:05:16.47 0.6 undecidable manual S 317 0.4937 50 0.72 40
GU.GORR.HHZ. 2020-01-22T23:05:10.77 0.3 undecidable manual S 70 0.3498 50 -0.69 63
GU.ROTM.HHZ. 2020-01-22T23:05:08.52 0.3 undecidable manual P 317 0.4937 50 0.21 70
GU.CANO.HHZ. 2020-01-22T23:05:08.58 0.1 undecidable manual P 237 0.509 50 0.01 97
IV.SARZ.HHZ. 2020-01-22T23:05:06.73 1.0 undecidable manual P 9 0.3813 50 0.34 23
GU.PCP.HHZ. 2020-01-22T23:05:06.04 0.6 undecidable manual S 284 0.2095 111 -0.74 42
GU.GORR.HHZ. 2020-01-22T23:05:05.49 0.6 positive manual P 70 0.3498 50 -0.34 47
GU.RNCA.HHZ. 2020-01-22T23:05:03.06 0.6 undecidable manual S 102 0.0881 132 0.34 49
GU.PCP.HHZ. 2020-01-22T23:05:02.74 0.1 negative manual P 284 0.2095 111 -0.39 95
GU.RNCA.HHZ. 2020-01-22T23:05:01.04 0.1 undecidable manual P 102 0.0881 132 0.25 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RNCA.HHN. ML:1.5 0.000476 0.46 AML other m 2020-01-22T23:05:03.11
GU.RNCA.HHE. ML:1.4 0.0003125 0.88 AML other m 2020-01-22T23:05:03.20
GU.PCP.HHN. ML:1.5 0.0001975 1.44 AML other m 2020-01-22T23:05:06.27
GU.PCP.HHE. ML:1.5 0.000218 0.28 AML other m 2020-01-22T23:05:06.48
GU.GORR.HHE. ML:1.5 0.000113 0.44 AML other m 2020-01-22T23:05:11.51
GU.GORR.HHN. ML:1.6 0.00015 1.5 AML other m 2020-01-22T23:05:12.00
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download