Earthquake with magnitude of ML 1.4 on date 21-10-2021 and time 01:21:19 (Italy) in region 7 km SW Cantiano (PU)

A magnitude ML 1.4 earthquake occured in region: 7 km SW Cantiano (PU), on

  • 20-10-2021 23:21:19 (UTC)
  • 21-10-2021 01:21:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.443, 12.558 at 12 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
Cantiano PU 7 2245 2245
Pietralunga PG 10 2111 4356
Scheggia e Pascelupo PG 10 1393 5749
Gubbio PG 10 32216 37965
Cagli PU 14 8731 46696
Costacciaro PG 16 1216 47912
Frontone PU 17 1300 49212
Piobbico PU 17 2029 51241
Apecchio PU 17 1882 53123
Serra Sant'Abbondio PU 18 1027 54150
Sigillo PG 19 2404 56554

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km NE of Perugia (166134 inhabitants)
55 Km E of Arezzo (99543 inhabitants)
55 Km N of Foligno (57155 inhabitants)
58 Km SW of Fano (60888 inhabitants)
59 Km SW of Pesaro (94582 inhabitants)
69 Km S of Rimini (147750 inhabitants)
80 Km W of Ancona (100861 inhabitants)
81 Km SE of Cesena (96758 inhabitants)
96 Km SE of Forlì (117913 inhabitants)
98 Km N of Terni (111501 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 1.4 2021-10-20
23:21:19
43.4427 12.5582 12 2021-10-20
23:27:33
Sala Sismica INGV-Roma 96813831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-20 23:21:19 ± 0.04
Latitude 43.4427 ± 0.0018
Longitude 12.5582 ± 0.0025
Depth (km) 12 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96813831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 218
Semi-minor axis of confidence ellipse (meter) 92
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 0
Circular confidence region, given by single value of horizontal uncertainty (meter) 220
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 48
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 38
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.30937
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 20
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 96813831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-20 23:27:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2021-10-20T23:21:30.36 0.3 undecidable manual S 167 0.2644 92 0.55 63
IV.FDMO.HHZ. 2021-10-20T23:21:30.51 3.0 positive manual P -0.28 0
IV.ARVD.HHZ. 2021-10-20T23:21:30.57 0.3 undecidable manual S 79 0.2833 92 0.19 70
IV.MMUR.HNZ. 2021-10-20T23:21:29.88 3.0 undecidable manual S -2.01 0
IV.MPAG.EHZ. 2021-10-20T23:21:29.11 0.3 undecidable manual S 38 0.2365 93 0.11 72
IV.BADI.EHZ. 2021-10-20T23:21:29.02 0.3 undecidable manual S 286 0.2374 93 0.01 73
IV.FOSV.EHZ. 2021-10-20T23:21:28.17 0.3 undecidable manual S 135 0.2086 93 0 73
IV.MML1.EHZ. 2021-10-20T23:21:28.57 3.0 positive manual P -0.12 0
IV.MURB.HHZ. 2021-10-20T23:21:27.01 0.3 undecidable manual S 188 0.1817 95 -0.35 70
IV.ASSB.HHZ. 2021-10-20T23:21:27.97 3.0 positive manual P 0.01 0
IV.NARO.HHZ. 2021-10-20T23:21:26.74 0.3 undecidable manual S 6 0.1691 96 -0.25 70
IV.APEC.HHZ. 2021-10-20T23:21:26.79 0.3 undecidable manual S 319 0.1529 98 0.26 71
IV.PARC.HHZ. 2021-10-20T23:21:26.27 0.3 undecidable manual P 312 0.3094 92 0.03 72
IV.SSFR.HHZ. 2021-10-20T23:21:26.64 0.3 undecidable manual S 92 0.1628 97 -0.17 72
IV.BADI.EHZ. 2021-10-20T23:21:25.14 0.6 negative manual P 286 0.2374 93 0.14 48
IV.TB03.DH1.01 2021-10-20T23:21:25.28 0.3 undecidable manual S 249 0.1151 112 -0.15 73
IV.TB02.DHE.01 2021-10-20T23:21:25.74 0.3 undecidable manual S 236 0.1295 105 -0.11 73
IV.ARVD.HHZ. 2021-10-20T23:21:25.83 0.1 positive manual P 79 0.2833 92 0.03 96
IV.ATCC.EHZ. 2021-10-20T23:21:25.60 0.6 undecidable manual P 167 0.2644 92 0.14 47
IV.TB01.DHE.01 2021-10-20T23:21:25.18 0.3 undecidable manual S 236 0.1079 115 -0.06 75
IV.ATPI.EHZ. 2021-10-20T23:21:25.26 0.1 undecidable manual S 274 0.1133 113 -0.13 97
IV.PE3.EHZ. 2021-10-20T23:21:25.79 1.0 positive manual P 350 0.2572 92 0.45 22
IV.FRON.EHZ. 2021-10-20T23:21:25.99 0.1 undecidable manual S 58 0.143 101 -0.24 95
IV.ATSC.EHN. 2021-10-20T23:21:24.79 0.1 undecidable manual S 101 0.0953 122 -0.12 99
IV.ATFO.HHZ. 2021-10-20T23:21:24.17 0.3 undecidable manual S 173 0.0764 131 -0.3 72
IV.MURB.HHZ. 2021-10-20T23:21:24.21 0.3 undecidable manual P 188 0.1817 95 0.17 71
IV.ATPC.HNE. 2021-10-20T23:21:24.64 0.3 undecidable manual S 297 0.0827 128 0.04 75
IV.FOSV.EHZ. 2021-10-20T23:21:24.40 0.3 negative manual P 135 0.2086 93 -0.12 73
IV.ATBU.HNE. 2021-10-20T23:21:24.02 0.3 undecidable manual S 348 0.0342 157 0.3 72
IV.MPAG.EHZ. 2021-10-20T23:21:24.96 0.3 undecidable manual P 38 0.2365 93 -0.03 73
IV.FRON.EHZ. 2021-10-20T23:21:23.27 0.1 undecidable manual P 58 0.143 101 -0.12 97
IV.SSFR.HHZ. 2021-10-20T23:21:23.66 0.1 undecidable manual P 92 0.1628 97 -0.08 98
IV.NARO.HHZ. 2021-10-20T23:21:23.66 0.1 undecidable manual P 6 0.1691 96 -0.18 95
IV.TB02.DHE.01 2021-10-20T23:21:23.11 0.1 undecidable manual P 236 0.1295 105 -0.07 99
IV.APEC.HHZ. 2021-10-20T23:21:23.62 0.1 negative manual P 319 0.1529 98 0.05 99
IV.ATBU.HNE. 2021-10-20T23:21:22.27 0.1 undecidable manual P 348 0.0342 157 0.32 95
IV.ATSC.EHN. 2021-10-20T23:21:22.66 0.1 undecidable manual P 101 0.0953 122 0.03 100
IV.ATFO.HHZ. 2021-10-20T23:21:22.46 0.1 undecidable manual P 173 0.0764 131 0.08 99
IV.TB03.DH1.01 2021-10-20T23:21:22.86 0.1 undecidable manual P 249 0.1151 112 -0.08 99
IV.ATPC.HNE. 2021-10-20T23:21:22.51 0.1 undecidable manual P 297 0.0827 128 0.05 100
IV.TB01.DHE.01 2021-10-20T23:21:22.79 0.1 undecidable manual P 236 0.1079 115 -0.04 100
IV.ATPI.EHZ. 2021-10-20T23:21:22.94 0.1 undecidable manual P 274 0.1133 113 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATFO.HHN. ML:1.7 0.0006625 0.14 AML other m 2021-10-20T23:21:24.34
IV.ATFO.HHE. ML:1.4 0.0003385 0.72 AML other m 2021-10-20T23:21:24.51
IV.APEC.HHE. ML:1 7.315E-5 1.56 AML other m 2021-10-20T23:21:26.10
IV.SSFR.HHN. ML:1.6 0.0002765 0.2 AML other m 2021-10-20T23:21:27.21
IV.SSFR.HNN. ML:1.8 0.0004325 0.6 AML other m 2021-10-20T23:21:27.22
IV.SSFR.HNE. ML:1.8 0.00051 0.14 AML other m 2021-10-20T23:21:27.31
IV.SSFR.HHE. ML:1.6 0.0003015 0.16 AML other m 2021-10-20T23:21:27.31
IV.MURB.HHN. ML:1.7 0.0003465 0.34 AML other m 2021-10-20T23:21:27.99
IV.APEC.HHN. ML:0.8 5.54E-5 1 AML other m 2021-10-20T23:21:28.69
IV.MURB.HHE. ML:1.7 0.000335 1.06 AML other m 2021-10-20T23:21:29.64
IV.BADI.EHE. ML:1.5 0.000168 0.2 AML other m 2021-10-20T23:21:29.29
IV.BADI.EHN. ML:1.2 9.145E-5 0.42 AML other m 2021-10-20T23:21:29.54
IV.ATCC.EHN. ML:1.3 8.935E-5 0.22 AML other m 2021-10-20T23:21:30.59
IV.ARVD.HHN. ML:1 4.28E-5 0.08 AML other m 2021-10-20T23:21:30.82
IV.ARVD.HHE. ML:1.2 6.35E-5 0.08 AML other m 2021-10-20T23:21:30.90
IV.ATCC.EHE. ML:1.1 5.745E-5 1.2 AML other m 2021-10-20T23:21:31.84
IV.PARC.HHE. ML:0.8 2.46E-5 0.6 AML other m 2021-10-20T23:21:32.97
IV.PARC.HHN. ML:0.9 3.225E-5 0.46 AML other m 2021-10-20T23:21:33.72
IV.FDMO.HHN. ML:0.7 1.121E-5 1.06 AML other m 2021-10-20T23:21:40.69
IV.FDMO.HHE. ML:0.9 1.515E-5 0.56 AML other m 2021-10-20T23:21:40.69
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