Earthquake with magnitude of ML 0.3 on date 26-08-2021 and time 08:06:21 (UTC) in region 2 km S Cantiano (PU)

A magnitude ML 0.3 earthquake occured in region: 2 km S Cantiano (PU), on

  • 26-08-2021 08:06:21 (UTC)
  • 26-08-2021 10:06:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.458, 12.625 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 2 2245 2245
Scheggia e Pascelupo PG 7 1393 3638
Cagli PU 10 8731 12369
Frontone PU 11 1300 13669
Gubbio PG 12 32216 45885
Serra Sant'Abbondio PU 12 1027 46912
Costacciaro PG 13 1216 48128
Pietralunga PG 15 2111 50239
Sigillo PG 17 2404 52643
Piobbico PU 17 2029 54672
Acqualagna PU 18 4393 59065
Sassoferrato AN 19 7285 66350
Apecchio PU 20 1882 68232

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km NE of Perugia (166134 inhabitants)
54 Km SW of Fano (60888 inhabitants)
56 Km SW of Pesaro (94582 inhabitants)
56 Km N of Foligno (57155 inhabitants)
60 Km E of Arezzo (99543 inhabitants)
67 Km S of Rimini (147750 inhabitants)
74 Km W of Ancona (100861 inhabitants)
82 Km SE of Cesena (96758 inhabitants)
97 Km SE of Forlì (117913 inhabitants)
100 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 0.3 2021-08-26
08:06:21
43.4582 12.6247 12 2021-08-26
08:16:40
Sala Sismica INGV-Roma 94653401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-26 08:06:21 ± 0.08
Latitude 43.4582 ± 0.0027
Longitude 12.6247 ± 0.0025
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 94653401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 255
Semi-minor axis of confidence ellipse (meter) 184
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 315
Circular confidence region, given by single value of horizontal uncertainty (meter) 260
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.19695
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 94653401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-26 08:16:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ATMI.HHZ. 2021-08-26T08:06:37.53 3.0 undecidable manual S 0.17 0
IV.PP3.EHZ. 2021-08-26T08:06:31.98 3.0 positive manual P 0 0
IV.MPAG.HNZ. 2021-08-26T08:06:29.60 0.3 undecidable manual S 30 0.197 99 -0.05 73
IV.NARO.HHZ. 2021-08-26T08:06:28.26 0.3 undecidable manual S 348 0.1556 105 -0.2 71
IV.TB03.DHZ.01 2021-08-26T08:06:28.64 0.6 undecidable manual S 250 0.1655 103 -0.1 48
IV.SSFR.HHZ. 2021-08-26T08:06:27.37 0.3 undecidable manual S 101 0.116 117 0 75
IV.ATPC.HHZ. 2021-08-26T08:06:27.57 0.3 undecidable manual S 281 0.1241 115 0.01 74
IV.ATSC.EHZ. 2021-08-26T08:06:26.10 0.3 undecidable manual S 127 0.0567 146 0.07 76
IV.MPAG.HNZ. 2021-08-26T08:06:26.21 0.6 undecidable manual P 30 0.197 99 0.07 49
IV.ATFO.HHZ. 2021-08-26T08:06:26.81 0.3 undecidable manual S 203 0.0989 125 -0.12 73
IV.FRON.EHZ. 2021-08-26T08:06:26.82 0.3 undecidable manual S 51 0.0944 127 0 75
IV.TB03.DHZ.01 2021-08-26T08:06:25.55 0.1 undecidable manual P 250 0.1655 103 -0.06 98
IV.NARO.HHZ. 2021-08-26T08:06:25.74 0.3 undecidable manual P 348 0.1556 105 0.29 71
IV.ATFO.HHZ. 2021-08-26T08:06:24.61 0.1 undecidable manual P 203 0.0989 125 0.04 100
IV.FRON.EHZ. 2021-08-26T08:06:24.56 0.1 undecidable manual P 51 0.0944 127 0.06 100
IV.ATSC.EHZ. 2021-08-26T08:06:24.16 0.3 undecidable manual P 127 0.0567 146 0.11 75
IV.SSFR.HHZ. 2021-08-26T08:06:24.64 0.1 undecidable manual P 101 0.116 117 -0.18 97
IV.ATPC.HHZ. 2021-08-26T08:06:24.96 0.3 undecidable manual P 281 0.1241 115 0.03 75
IV.FOSV.EHZ. 2021-08-26T08:06:23.73 3.0 undecidable manual P 0.21 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATFO.HHE. ML:0.4 3.199137E-5 0.0768 AML other m 2021-08-26T08:06:27.31
IV.ATFO.HHN. ML:0.4 3.187274E-5 0.0832 AML other m 2021-08-26T08:06:27.22
IV.NARO.HHE. ML:0.3 1.2957374E-5 0.1408 AML other m 2021-08-26T08:06:29.24
IV.NARO.HHN. ML:0.1 1.1073315E-5 0.0832 AML other m 2021-08-26T08:06:28.45
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