Earthquake with magnitude of ML 1.0 on date 21-10-2019 and time 08:39:43 (Italy) in region 3 km W Issogne (AO)

A magnitude ML 1.0 earthquake occured in region: 3 km W Issogne (AO), on

  • 21-10-2019 06:39:43 (UTC)
  • 21-10-2019 08:39:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.66, 7.65 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
Issogne AO 3 1400 1400
Champdepraz AO 3 712 2112
Verrès AO 4 2696 4808
Champorcher AO 4 388 5196
Montjovet AO 6 1801 6997
Challand-Saint-Victor AO 6 564 7561
Arnad AO 6 1273 8834
Pontboset AO 7 185 9019
Hône AO 9 1166 10185
Emarèse AO 9 226 10411
Bard AO 10 119 10530
Challand-Saint-Anselme AO 10 751 11281
Pontey AO 10 817 12098
Saint-Vincent AO 10 4660 16758
Châtillon AO 11 4772 21530
Donnas AO 11 2563 24093
Chambave AO 12 931 25024
Saint-Denis AO 13 378 25402
Brusson AO 13 897 26299
Pont-Saint-Martin AO 13 3840 30139
Perloz AO 14 477 30616
Verrayes AO 15 1302 31918
Fénis AO 15 1813 33731
Carema TO 15 774 34505
Lillianes AO 16 462 34967
Quincinetto TO 16 1031 35998
Issime AO 16 423 36421
Nus AO 17 2984 39405
Fontainemore AO 17 440 39845
Valprato Soana TO 17 108 39953
Antey-Saint-André AO 17 602 40555
Torgnon AO 17 558 41113
La Magdeleine AO 17 109 41222
Saint-Marcel AO 18 1362 42584
Ayas AO 18 1401 43985
Traversella TO 18 343 44328
Tavagnasco TO 19 791 45119
Settimo Vittone TO 19 1560 46679
Ronco Canavese TO 19 314 46993
Gressoney-Saint-Jean AO 19 807 47800
Gaby AO 19 468 48268

Municipalities with at least 50000 inhabitants

An earthquake occurred to
65 Km N of Torino (890529 inhabitants)
73 Km N of Moncalieri (57294 inhabitants)
80 Km W of Novara (104380 inhabitants)
89 Km W of Gallarate (53343 inhabitants)
93 Km W of Varese (80799 inhabitants)
94 Km W of Busto Arsizio (83106 inhabitants)
95 Km NW of Asti (76202 inhabitants)
99 Km W of Legnano (60262 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 1.0 2019-10-21
06:39:43
45.66 7.65 11 2019-10-21
06:46:44
Sala Sismica INGV-Roma 73368911
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-21 06:39:43 ± 0.21
Latitude 45.66 ± 0.01
Longitude 7.65 ± 0.02
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73368911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1544
Semi-minor axis of confidence ellipse (meter) 1315
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 61
Circular confidence region, given by single value of horizontal uncertainty (meter) 1540
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 175
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) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.07914
Epicentral distance of station farthest from the epicenter (degree) 0.45326
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

Field Value
Value 1
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 73368911
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-21 06:46:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
CH.DIX.HHZ. 2019-10-21T06:39:58.35 0.6 undecidable manual S 339 0.4533 50 -0.84 38
IV.MRGE.HHZ. 2019-10-21T06:39:58.69 0.3 undecidable manual S 285 0.4245 50 0.36 68
GU.LSD.HHZ. 2019-10-21T06:39:57.31 0.3 undecidable manual S 241 0.4101 50 -0.62 63
GU.REMY.HHZ. 2019-10-21T06:39:57.08 0.3 undecidable manual S 298 0.3867 50 -0.14 72
IV.MRGE.HHZ. 2019-10-21T06:39:52.51 0.3 undecidable manual P 285 0.4245 50 0.58 64
GU.LSD.HHZ. 2019-10-21T06:39:52.03 0.3 undecidable manual P 241 0.4101 50 0.34 68
CH.DIX.HHZ. 2019-10-21T06:39:52.16 0.3 undecidable manual P 339 0.4533 50 -0.26 69
GU.REMY.HHZ. 2019-10-21T06:39:51.45 0.1 undecidable manual P 298 0.3867 50 0.17 95
GU.TRAV.HHZ. 2019-10-21T06:39:50.09 0.3 undecidable manual S 154 0.1619 120 -0.29 73
GU.TRAV.HHZ. 2019-10-21T06:39:47.59 0.1 undecidable manual P 154 0.1619 120 0.26 97
GU.CIRO.HHZ. 2019-10-21T06:39:47.55 0.3 undecidable manual S 224 0.0791 140 -0.36 72
GU.CIRO.HHZ. 2019-10-21T06:39:46.11 0.1 undecidable manual P 224 0.0791 140 0.2 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.CIRO.HHE. ML:1 0.0001207678 0.2784 AML other m 2019-10-21T06:39:47.61
GU.CIRO.HHN. ML:1.1 0.0001513354 0.1216 AML other m 2019-10-21T06:39:47.75
GU.TRAV.HHE. ML:1 8.0366395E-5 0.1792 AML other m 2019-10-21T06:39:51.00
GU.TRAV.HHN. ML:1 8.066131E-5 0.24 AML other m 2019-10-21T06:39:50.60
GU.REMY.HHE. ML:0.8 1.960698E-5 0.1376 AML other m 2019-10-21T06:39:58.38
GU.REMY.HHN. ML:1 2.858885E-5 0.16 AML other m 2019-10-21T06:39:57.84
GU.LSD.HHE. ML:0.9 2.56224045E-5 0.1824 AML other m 2019-10-21T06:39:59.10
GU.LSD.HHN. ML:0.8 2.125957E-5 0.1184 AML other m 2019-10-21T06:39:58.23
CH.DIX.HHE. ML:1.2 3.80601725E-5 0.1696 AML other m 2019-10-21T06:40:02.28
CH.DIX.HHN. ML:1.2 3.972035E-5 0.2496 AML other m 2019-10-21T06:39:59.67
IV.MRGE.HHE. ML:0.7 1.583982E-5 0.1792 AML other m 2019-10-21T06:39:59.64
IV.MRGE.HHN. ML:0.7 1.4390072E-5 0.1024 AML other m 2019-10-21T06:39:59.47
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