Earthquake with magnitude of ML 0.5 on date 17-10-2021 and time 13:39:10 (Italy) in region 2 km E Cannara (PG)

A magnitude ML 0.5 earthquake occured in region: 2 km E Cannara (PG), on

  • 17-10-2021 11:39:10 (UTC)
  • 17-10-2021 13:39:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.002, 12.613 at 8 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
Cannara PG 3 4305 4305
Spello PG 5 8645 12950
Bevagna PG 8 5081 18031
Assisi PG 8 28299 46330
Bastia Umbra PG 9 21874 68204
Foligno PG 9 57155 125359
Bettona PG 10 4367 129726
Gualdo Cattaneo PG 11 6155 135881
Montefalco PG 12 5679 141560
Valtopina PG 13 1398 142958
Torgiano PG 15 6725 149683
Deruta PG 16 9669 159352
Valfabbrica PG 18 3389 162741
Trevi PG 18 8469 171210
Collazzone PG 19 3473 174683
Giano dell'Umbria PG 19 3846 178529
Nocera Umbra PG 19 5839 184368

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km NW of Foligno (57155 inhabitants)
22 Km SE of Perugia (166134 inhabitants)
49 Km N of Terni (111501 inhabitants)
77 Km NE of Viterbo (67173 inhabitants)
79 Km SE of Arezzo (99543 inhabitants)
97 Km NW of L'Aquila (69753 inhabitants)
97 Km W of Teramo (54892 inhabitants)
99 Km SW of Fano (60888 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 0.5 2021-10-17
11:39:10
43.0025 12.6132 8 2021-10-17
12:06:44
Sala Sismica INGV-Roma 96679341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-17 11:39:10 ± 0.08
Latitude 43.0025 ± 0.0036
Longitude 12.6132 ± 0.0049
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96679341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 433
Semi-minor axis of confidence ellipse (meter) 263
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 278
Circular confidence region, given by single value of horizontal uncertainty (meter) 430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 90
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.4038
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 96679341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-17 12:06:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2021-10-17T11:39:26.14 0.6 undecidable manual S 115 0.4038 50 0.5 57
IV.MGAB.HNE. 2021-10-17T11:39:24.84 0.6 undecidable manual S 256 0.3777 50 -0.02 64
IV.FDMO.HHZ. 2021-10-17T11:39:23.57 0.6 undecidable manual S 84 0.348 50 -0.42 59
IV.FOSV.EHZ. 2021-10-17T11:39:22.79 0.3 undecidable manual S 20 0.3112 103 -0.04 96
IV.MURB.HHZ. 2021-10-17T11:39:21.60 0.6 undecidable manual S 346 0.268 105 0.38 60
IV.NRCA.HHZ. 2021-10-17T11:39:19.38 0.6 undecidable manual P 115 0.4038 50 0.13 62
IV.BRIS.HHZ. 2021-10-17T11:39:19.56 3.0 undecidable manual P 1.37 0
IV.CESI.HHN. 2021-10-17T11:39:19.32 0.3 undecidable manual S 89 0.2131 109 0.14 96
IV.MGAB.HNE. 2021-10-17T11:39:18.10 1.0 undecidable manual P 256 0.3777 50 -0.7 27
IV.MOMA.HNZ. 2021-10-17T11:39:18.86 0.6 undecidable manual S 189 0.2014 110 0.12 65
IV.ATCC.EHZ. 2021-10-17T11:39:18.22 0.3 undecidable manual S 6 0.1835 111 0.11 97
IV.FDMO.HHZ. 2021-10-17T11:39:18.37 1.0 undecidable manual P 84 0.348 50 0.07 32
IV.FOSV.EHZ. 2021-10-17T11:39:17.72 1.0 undecidable manual P 20 0.3112 103 0.09 32
IV.MURB.HHZ. 2021-10-17T11:39:16.51 0.6 undecidable manual P 346 0.268 105 -0.19 63
IV.MOMA.HNZ. 2021-10-17T11:39:15.35 0.6 undecidable manual P 189 0.2014 110 0.08 65
IV.ATCC.EHZ. 2021-10-17T11:39:15.00 0.3 undecidable manual P 6 0.1835 111 0.09 98
IV.CESI.HHN. 2021-10-17T11:39:15.19 0.3 undecidable manual P 89 0.2131 109 -0.33 92
IV.ASSB.HHZ. 2021-10-17T11:39:13.83 0.3 undecidable manual S 40 0.0522 144 -0.1 100
IV.ASSB.HHZ. 2021-10-17T11:39:12.39 0.3 undecidable manual P 40 0.0522 144 -0.1 100
IV.APEC.HHZ. 2021-10-17T11:39:05.18 3.0 positive manual P -0.18 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHE. ML:0.7 9.5912605E-5 0.1216 AML other m 2021-10-17T11:39:14.37
IV.ASSB.HHN. ML:0.8 0.00013157105 0.0832 AML other m 2021-10-17T11:39:14.11
IV.FDMO.HHN. ML:0.4 8.3948155E-6 0.1984 AML other m 2021-10-17T11:39:24.54
IV.FDMO.HHE. ML:0.1 6.8653115E-6 0.1792 AML other m 2021-10-17T11:39:25.64
IV.ATCC.EHE. ML:0.3 1.5989668E-5 0.0384 AML other m 2021-10-17T11:39:18.64
IV.ATCC.EHN. ML:0.3 1.480916E-5 0.1216 AML other m 2021-10-17T11:39:19.47
IV.MURB.HHE. ML:0.9 4.1109765E-5 0.2368 AML other m 2021-10-17T11:39:23.28
IV.MURB.HHN. ML:0.7 2.721607E-5 0.1792 AML other m 2021-10-17T11:39:23.43
IV.NRCA.HHE. ML:0.5 9.1447905E-6 0.1024 AML other m 2021-10-17T11:39:27.36
IV.NRCA.HHN. ML:0.5 1.1000926E-5 0.1024 AML other m 2021-10-17T11:39:27.24
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