Earthquake with magnitude of ML 1.0 on date 19-05-2021 and time 15:02:17 (Italy) in region 3 km W Issime (AO)

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

  • 19-05-2021 13:02:17 (UTC)
  • 19-05-2021 15:02:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.692, 7.814 at 11 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
Issime AO 3 423 423
Gaby AO 6 468 891
Fontainemore AO 6 440 1331
Challand-Saint-Anselme AO 7 751 2082
Lillianes AO 7 462 2544
Challand-Saint-Victor AO 8 564 3108
Perloz AO 9 477 3585
Arnad AO 9 1273 4858
Emarèse AO 10 226 5084
Gressoney-Saint-Jean AO 10 807 5891
Brusson AO 10 897 6788
Verrès AO 10 2696 9484
Pont-Saint-Martin AO 10 3840 13324
Donnas AO 10 2563 15887
Bard AO 11 119 16006
Hône AO 11 1166 17172
Issogne AO 11 1400 18572
Montjovet AO 11 1801 20373
Piedicavallo BI 11 193 20566
Carema TO 12 774 21340
Champdepraz AO 12 712 22052
Rosazza BI 13 108 22160
Pontboset AO 14 185 22345
Saint-Vincent AO 14 4660 27005
Quincinetto TO 15 1031 28036
Campiglia Cervo BI 15 505 28541
Gressoney-La-Trinité AO 15 303 28844
Settimo Vittone TO 16 1560 30404
Tavagnasco TO 17 791 31195
Champorcher AO 17 388 31583
Châtillon AO 17 4772 36355
Ayas AO 17 1401 37756
Nomaglio TO 18 287 38043
Rassa VC 18 71 38114
Pontey AO 18 817 38931
Sordevolo BI 18 1373 40304
Quassolo TO 19 354 40658
Andrate TO 19 505 41163
Pollone BI 19 2109 43272
Riva Valdobbia VC 19 258 43530
Donato BI 20 693 44223
Sagliano Micca BI 20 1637 45860
Graglia BI 20 1559 47419
Muzzano BI 20 609 48028
Miagliano BI 20 624 48652
Netro BI 20 1009 49661
Borgofranco d'Ivrea TO 20 3732 53393

Municipalities with at least 50000 inhabitants

An earthquake occurred to
69 Km W of Novara (104380 inhabitants)
70 Km N of Torino (890529 inhabitants)
76 Km W of Gallarate (53343 inhabitants)
77 Km N of Moncalieri (57294 inhabitants)
80 Km W of Varese (80799 inhabitants)
81 Km W of Busto Arsizio (83106 inhabitants)
87 Km W of Legnano (60262 inhabitants)
92 Km W of Vigevano (63310 inhabitants)
93 Km NW of Asti (76202 inhabitants)
97 Km W of Rho (50434 inhabitants)
100 Km W of Como (84495 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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 1.0 2021-05-19
13:02:17
45.692 7.8142 11 2021-05-19
13:10:16
Sala Sismica INGV-Roma 90264271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-19 13:02:17 ± 0.21
Latitude 45.6920 ± 0.0090
Longitude 7.8142 ± 0.0245
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 90264271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1970
Semi-minor axis of confidence ellipse (meter) 850
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 288
Circular confidence region, given by single value of horizontal uncertainty (meter) 1970
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 179
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.6664
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.5
Num. used stations 6
Type of magnitude ML
Reference to an origin 90264271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-19 13:10:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
TV.SF04.EHZ. 2021-05-19T13:04:09.75 3.0 undecidable manual Sg 14.6 0
IV.RIBO.EHZ.01 2021-05-19T13:04:01.66 3.0 undecidable manual Sg 15.86 0
IV.PESA.HHZ. 2021-05-19T13:03:55.63 3.0 undecidable manual Sn -0.41 0
IV.FIR.HHZ. 2021-05-19T13:03:47.20 3.0 undecidable manual Sg 12.93 0
IV.MMO1.EHZ. 2021-05-19T13:03:34.28 3.0 undecidable manual Pg 11.65 0
IV.SALO.HHZ. 2021-05-19T13:03:13.73 3.0 undecidable manual Sg 6.57 0
IV.NARO.HHZ. 2021-05-19T13:03:07.67 3.0 undecidable manual Pn -3.28 0
IT.FIE.HGZ. 2021-05-19T13:03:01.01 3.0 positive manual Pn 2.18 0
MN.BNI.HHZ. 2021-05-19T13:02:51.70 3.0 undecidable manual Sg -0.01 0
GU.RSP.HHE. 2021-05-19T13:02:39.35 0.3 undecidable manual S 216 0.6664 50 -0.47 62
CH.DIX.HHZ. 2021-05-19T13:02:33.96 0.3 undecidable manual S 324 0.4793 50 -0.34 66
CH.MMK.HHZ. 2021-05-19T13:02:30.60 0.1 undecidable manual S 16 0.3732 50 -0.54 86
GU.RSP.HHE. 2021-05-19T13:02:30.94 0.3 undecidable manual P 216 0.6664 50 0.52 61
IV.SARZ.HNZ. 2021-05-19T13:02:29.95 3.0 undecidable manual Pn -0.47 0
GU.MRGE.HHZ. 2021-05-19T13:02:29.07 3.0 undecidable manual P 0
IV.EUCT.HNZ. 2021-05-19T13:02:28.95 3.0 undecidable manual P -0.45 0
CH.DIX.HHZ. 2021-05-19T13:02:27.73 0.6 negative manual P 324 0.4793 50 0.5 43
GU.CIRO.HHZ. 2021-05-19T13:02:25.82 0.1 undecidable manual S 242 0.1943 50 -0.02 100
GU.TRAV.HHE. 2021-05-19T13:02:25.08 0.1 undecidable manual S 195 0.1862 50 -0.52 90
CH.MMK.HHZ. 2021-05-19T13:02:25.83 0.1 positive manual P 16 0.3732 50 0.42 89
GU.TRAV.HHE. 2021-05-19T13:02:22.48 0.1 undecidable manual P 195 0.1862 50 0.28 95
GU.CIRO.HHZ. 2021-05-19T13:02:22.77 0.3 undecidable manual P 242 0.1943 50 0.43 69
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.CIRO.HHN. ML:1 6.1E-5 0.2 AML other m 2021-05-19T13:02:26.19
GU.CIRO.HHE. ML:1 6.06E-5 0.16 AML other m 2021-05-19T13:02:26.31
CH.MMK.HHE. ML:0.2 5.025E-6 0.08 AML other m 2021-05-19T13:02:31.48
CH.MMK.HHN. ML:0.2 4.555E-6 0.66 AML other m 2021-05-19T13:02:31.64
CH.DIX.HHN. ML:1.5 7.095E-5 1.38 AML other m 2021-05-19T13:02:35.73
CH.DIX.HHE. ML:1.4 6.74E-5 0.58 AML other m 2021-05-19T13:02:36.40
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