Earthquake with magnitude of ML 0.8 on date 19-01-2021 and time 10:00:41 (UTC) in region 2 km S Roccasparvera (CN)

A magnitude ML 0.8 earthquake occured in region: 2 km S Roccasparvera (CN), on

  • 19-01-2021 10:00:41 (UTC)
  • 19-01-2021 11:00:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.32, 7.44 at 5 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
Roccasparvera CN 2 741 741
Gaiola CN 3 582 1323
Roccavione CN 3 2761 4084
Borgo San Dalmazzo CN 4 12468 16552
Moiola CN 4 234 16786
Rittana CN 5 109 16895
Vignolo CN 5 2600 19495
Valloriate CN 6 109 19604
Roaschia CN 6 107 19711
Valdieri CN 6 935 20646
Robilante CN 6 2306 22952
Cervasca CN 7 5013 27965
Bernezzo CN 8 4104 32069
Boves CN 9 9835 41904
Entracque CN 9 774 42678
Caraglio CN 11 6836 49514
Valgrana CN 11 786 50300
Vernante CN 11 1178 51478
Demonte CN 11 2003 53481
Cuneo CN 12 56081 109562
Monterosso Grana CN 14 505 110067
Peveragno CN 14 5543 115610
Montemale di Cuneo CN 14 241 115851
Pradleves CN 17 250 116101
Limone Piemonte CN 17 1485 117586
Beinette CN 17 3423 121009
Dronero CN 18 7035 128044
Aisone CN 18 248 128292
Villar San Costanzo CN 19 1547 129839
Chiusa di Pesio CN 19 3676 133515
Roccabruna CN 19 1585 135100

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km SW of Cuneo (56081 inhabitants)
62 Km NW of Sanremo (54807 inhabitants)
78 Km S of Moncalieri (57294 inhabitants)
83 Km W of Savona (61345 inhabitants)
86 Km S of Torino (890529 inhabitants)
88 Km SW of Asti (76202 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
Reviewed
Rev100
ML 0.8 2021-01-19
10:00:41
44.32 7.44 5 2021-01-19
10:09:18
Sala Sismica INGV-Roma 86375561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-19 10:00:41 ± 0.34
Latitude 44.32 ± 0.02
Longitude 7.44 ± 0.02
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86375561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1817
Semi-minor axis of confidence ellipse (meter) 910
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 333
Circular confidence region, given by single value of horizontal uncertainty (meter) 1820
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 237
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 5
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.29588
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 3
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.6
Num. used stations 4
Type of magnitude ML
Reference to an origin 86375561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-19 10:09:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.BHB.HHZ. 2021-01-19T10:01:01.35 3.0 undecidable manual S 0
GU.BHB.HHZ. 2021-01-19T10:00:56.69 3.0 undecidable manual P 0
GU.PZZ.HHZ. 2021-01-19T10:00:50.29 3.0 negative manual P 0.07 0
GU.GBOS.HHZ. 2021-01-19T10:00:47.72 0.6 undecidable manual P 105 0.2959 98 0.07 49
GU.ENR.HHZ. 2021-01-19T10:00:45.08 0.6 undecidable manual S 190 0.0926 114 0.14 50
GU.STV.HHZ. 2021-01-19T10:00:45.58 0.6 undecidable manual S 228 0.1115 111 -0.04 51
GU.ENR.HHZ. 2021-01-19T10:00:43.10 0.1 undecidable manual P 190 0.0926 114 -0.18 100
GU.STV.HHZ. 2021-01-19T10:00:43.78 0.3 undecidable manual P 228 0.1115 111 0.12 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.ENR.HHE. ML:1.3 0.0003555 0.8 AML other m 2021-01-19T10:00:45.98
GU.ENR.HHN. ML:1.2 0.0002955 0.58 AML other m 2021-01-19T10:00:46.38
GU.STV.HHN. ML:0.3 2.71E-5 1 AML other m 2021-01-19T10:00:48.42
GU.STV.HHE. ML:0.4 3.57E-5 1.04 AML other m 2021-01-19T10:00:48.08
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