Earthquake with magnitude of ML 2.1 on date 08-07-2020 and time 19:43:29 (Italy) in region 4 km NE Sampeyre (CN)

A magnitude ML 2.1 earthquake occured in region: 4 km NE Sampeyre (CN), on

  • 08-07-2020 17:43:29 (UTC)
  • 08-07-2020 19:43:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.62, 7.21 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
Sampeyre CN 4 1022 1022
Frassino CN 7 265 1287
Oncino CN 7 76 1363
Ostana CN 9 83 1446
Sanfront CN 9 2395 3841
Paesana CN 10 2784 6625
Crissolo CN 10 168 6793
Melle CN 11 292 7085
Gambasca CN 11 371 7456
Casteldelfino CN 12 157 7613
Rifreddo CN 12 1078 8691
Martiniana Po CN 12 734 9425
Elva CN 13 97 9522
Brossasco CN 13 1084 10606
Macra CN 13 59 10665
Valmala CN 13 52 10717
Stroppo CN 14 103 10820
Isasca CN 14 76 10896
Pontechianale CN 14 179 11075
San Damiano Macra CN 15 430 11505
Celle di Macra CN 15 100 11605
Envie CN 15 2074 13679
Revello CN 15 4262 17941
Barge CN 15 7774 25715
Brondello CN 16 290 26005
Venasca CN 16 1437 27442
Bellino CN 16 109 27551
Cartignano CN 16 190 27741
Pagno CN 17 585 28326
Castellar CN 18 295 28621
Bagnolo Piemonte CN 18 6024 34645
Roccabruna CN 19 1585 36230
Prazzo CN 19 170 36400
Rossana CN 19 908 37308
Marmora CN 20 68 37376
Rorà TO 20 257 37633
Villar San Costanzo CN 20 1547 39180

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NW of Cuneo (56081 inhabitants)
57 Km SW of Moncalieri (57294 inhabitants)
63 Km SW of Torino (890529 inhabitants)
85 Km W of Asti (76202 inhabitants)
99 Km NW of Sanremo (54807 inhabitants)
Recent and historical Seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours)

This map reports the earthquake epicenters located in the past 72 hours (3 days) from the time this page has been generated. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2014

Earthquakes since 1000 AD until 2014

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
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 2.1 2020-07-08
17:43:29
44.62 7.21 10 2020-07-08
17:50:48
Sala Sismica INGV-Roma 80886741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-08 17:43:29 ± 0.13
Latitude 44.62 ± 0.01
Longitude 7.21 ± 0.02
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 80886741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1243
Semi-minor axis of confidence ellipse (meter) 368
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 265
Circular confidence region, given by single value of horizontal uncertainty (meter) 1240
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.01803
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 18
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 35
Type of magnitude ML
Reference to an origin 80886741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-08 17:50:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
MN.TUE.HHZ. 2020-07-08T17:44:08.57 3.0 negative manual Pn 1.5 0
IV.MRGE.HHZ. 2020-07-08T17:43:52.23 3.0 positive manual P 2.23 0
RD.ORIF.BHZ. 2020-07-08T17:43:48.96 0.6 undecidable manual P 288 0.992 50 1.02 30
GU.PCP.HHZ. 2020-07-08T17:43:47.75 3.0 positive manual P 0.28 0
GU.CIRO.HHZ. 2020-07-08T17:43:47.52 0.3 undecidable manual P 14 1.018 50 -0.86 49
GU.BURY.HHE. 2020-07-08T17:43:47.05 0.6 undecidable manual P 163 0.8678 50 1.23 28
GU.TRAV.HHZ. 2020-07-08T17:43:46.91 0.3 undecidable manual P 23 0.9731 50 -0.71 52
GU.ROTM.HHZ. 2020-07-08T17:43:46.99 3.0 positive manual P 1 0
IV.IMI.HHZ. 2020-07-08T17:43:46.04 0.3 undecidable manual P 145 0.8571 50 0.41 60
GU.LSD.HHZ. 2020-07-08T17:43:45.51 0.6 undecidable manual P 356 0.8454 50 0.07 43
GU.CANO.HHZ. 2020-07-08T17:43:45.77 3.0 negative manual P -0.03 0
IV.QLNO.HHZ. 2020-07-08T17:43:44.89 3.0 undecidable manual P -1.25 0
GU.RORO.HHZ. 2020-07-08T17:43:44.75 0.3 undecidable manual P 129 0.7905 50 0.25 63
GU.RRL.HHZ. 2020-07-08T17:43:44.50 0.6 undecidable manual S 316 0.4272 50 -0.28 45
IV.MONC.HHZ. 2020-07-08T17:43:44.00 0.6 undecidable manual P 48 0.6835 50 1.33 28
GU.ENR.HHZ. 2020-07-08T17:43:43.91 0.3 undecidable manual S 159 0.4155 50 -0.54 63
GU.MGRO.HHE. 2020-07-08T17:43:43.64 1.0 undecidable manual P 143 0.7141 50 0.46 20
FR.SAOF.HHZ.00 2020-07-08T17:43:42.72 0.6 undecidable manual P 159 0.6745 50 0.21 43
GU.STV.HHZ. 2020-07-08T17:43:42.46 0.3 undecidable manual S 167 0.3786 50 -0.88 55
GU.GBOS.HHZ. 2020-07-08T17:43:41.15 0.3 undecidable manual P 130 0.5837 50 0.19 66
MN.BNI.HHZ. 2020-07-08T17:43:41.06 0.3 undecidable manual P 319 0.5774 50 0.21 66
GU.RSP.HHZ. 2020-07-08T17:43:40.10 0.3 undecidable manual P 4 0.5342 50 -0.01 69
GU.RRL.HHZ. 2020-07-08T17:43:38.37 0.1 undecidable manual P 316 0.4272 50 0.09 93
GU.ENR.HHZ. 2020-07-08T17:43:38.11 0.1 undecidable manual P 159 0.4155 50 0.02 95
GU.BHB.HHZ. 2020-07-08T17:43:38.24 0.3 undecidable manual S 9 0.223 112 -0.39 68
GU.STV.HHZ. 2020-07-08T17:43:37.47 0.1 undecidable manual P 167 0.3786 50 0.02 95
GU.PZZ.HHZ. 2020-07-08T17:43:35.12 0.3 undecidable manual S 212 0.1277 125 -0.26 71
GU.BHB.HHZ. 2020-07-08T17:43:34.95 0.3 undecidable manual P 9 0.223 112 0.23 71
GU.PZZ.HHZ. 2020-07-08T17:43:32.88 0.1 undecidable manual P 212 0.1277 125 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PZZ.HHE. ML:2.7 0.00572 0.18 AML other m 2020-07-08T17:43:35.36
GU.PZZ.HHN. ML:2.6 0.004455 0.28 AML other m 2020-07-08T17:43:36.24
GU.BHB.HHN. ML:2.4 0.00163 0.1 AML other m 2020-07-08T17:43:38.39
GU.BHB.HHE. ML:2.4 0.001476 0.1 AML other m 2020-07-08T17:43:38.37
GU.STV.HHN. ML:1.5 0.0001075 1.18 AML other m 2020-07-08T17:43:44.01
GU.ENR.HHN. ML:2 0.0003225 0.34 AML other m 2020-07-08T17:43:44.46
GU.RRL.HHE. ML:2.2 0.0004545 0.12 AML other m 2020-07-08T17:43:44.88
GU.ENR.HHE. ML:2.1 0.000357 0.58 AML other m 2020-07-08T17:43:45.49
GU.STV.HHE. ML:1.6 0.000134 0.2 AML other m 2020-07-08T17:43:45.52
GU.RRL.HHN. ML:2.2 0.000406 1.62 AML other m 2020-07-08T17:43:45.16
GU.RSP.HNE. ML:2.1 0.0002475 0.52 AML other m 2020-07-08T17:43:47.77
GU.RSP.HNN. ML:2.1 0.0002565 0.86 AML other m 2020-07-08T17:43:48.91
GU.RSP.HHN. ML:2.1 0.0002765 0.84 AML other m 2020-07-08T17:43:48.90
GU.GBOS.HHE. ML:2 0.0001795 0.44 AML other m 2020-07-08T17:43:49.40
GU.GBOS.HHN. ML:2 0.0001915 0.24 AML other m 2020-07-08T17:43:49.55
GU.RSP.HHE. ML:2.1 0.000271 0.6 AML other m 2020-07-08T17:43:51.65
FR.SAOF.HHN.00 ML:1.8 8.345E-5 0.62 AML other m 2020-07-08T17:43:52.25
FR.SAOF.HHE.00 ML:1.8 0.000103 0.34 AML other m 2020-07-08T17:43:52.42
GU.LSD.HHE. ML:0 1.022E-6 0.72 AML other m 2020-07-08T17:43:57.37
IV.MONC.HHE. ML:2.4 0.0003945 0.32 AML other m 2020-07-08T17:43:57.53
GU.LSD.HHN. ML:2.2 0.000181 1.12 AML other m 2020-07-08T17:43:58.89
IV.IMI.HHN. ML:2.1 0.0001405 0.18 AML other m 2020-07-08T17:43:59.90
GU.CANO.HHN. ML:2.2 0.0001925 1.34 AML other m 2020-07-08T17:44:00.79
IV.QLNO.HHN. ML:2 0.00010115 0.38 AML other m 2020-07-08T17:44:00.88
IV.MONC.HHN. ML:2.4 0.0003625 1.76 AML other m 2020-07-08T17:44:00.04
IV.QLNO.HHE. ML:2.1 0.00012845 0.22 AML other m 2020-07-08T17:44:00.92
GU.TRAV.HHN. ML:1.8 5.09E-5 0.36 AML other m 2020-07-08T17:44:01.61
GU.CANO.HHE. ML:2.2 0.000197 0.7 AML other m 2020-07-08T17:44:01.35
GU.TRAV.HHE. ML:1.8 6.135E-5 1.64 AML other m 2020-07-08T17:44:02.00
IV.IMI.HHE. ML:2 9.575E-5 0.3 AML other m 2020-07-08T17:44:02.94
GU.PCP.HHN. ML:1.9 7.49E-5 0.6 AML other m 2020-07-08T17:44:03.59
GU.PCP.HHE. ML:1.8 5.775E-5 0.36 AML other m 2020-07-08T17:44:04.34
GU.ROTM.HHN. ML:2.7 0.0005875 0.36 AML other m 2020-07-08T17:44:04.67
RD.ORIF.BHN. ML:2 8.04E-5 0.64 AML other m 2020-07-08T17:44:05.47
GU.ROTM.HHE. ML:2.5 0.0003395 1.32 AML other m 2020-07-08T17:44:07.14
RD.ORIF.BHE. ML:1.8 5.99E-5 0.72 AML other m 2020-07-08T17:44:07.69
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol scales with the calculated moment magnitude, Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in full SEED format Download