Earthquake with magnitude of ML 0.8 on date 18-10-2021 and time 10:54:20 (UTC) in region 5 km W Fiuminata (MC)

A magnitude ML 0.8 earthquake occured in region: 5 km W Fiuminata (MC), on

  • 18-10-2021 10:54:20 (UTC)
  • 18-10-2021 12:54:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.185, 12.868 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
Fiuminata MC 5 1402 1402
Sefro MC 8 422 1824
Gualdo Tadino PG 9 15208 17032
Pioraco MC 10 1134 18166
Esanatoglia MC 10 2034 20200
Nocera Umbra PG 10 5839 26039
Matelica MC 14 9981 36020
Serravalle di Chienti MC 14 1070 37090
Fossato di Vico PG 15 2840 39930
Castelraimondo MC 16 4587 44517
Valtopina PG 17 1398 45915
Camerino MC 17 6974 52889
Fabriano AN 17 31480 84369
Gagliole MC 17 620 84989
Cerreto d'Esi AN 18 3817 88806
Muccia MC 18 915 89721
Sigillo PG 19 2404 92125

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NE of Foligno (57155 inhabitants)
40 Km E of Perugia (166134 inhabitants)
71 Km SW of Ancona (100861 inhabitants)
72 Km N of Terni (111501 inhabitants)
74 Km S of Fano (60888 inhabitants)
81 Km S of Pesaro (94582 inhabitants)
86 Km E of Arezzo (99543 inhabitants)
90 Km NW of Teramo (54892 inhabitants)
100 Km S of Rimini (147750 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 0.8 2021-10-18
10:54:20
43.1853 12.8683 10 2021-10-18
11:02:33
Sala Sismica INGV-Roma 96721571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-18 10:54:20 ± 0.07
Latitude 43.1853 ± 0.0036
Longitude 12.8683 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96721571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 424
Semi-minor axis of confidence ellipse (meter) 217
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 193
Circular confidence region, given by single value of horizontal uncertainty (meter) 420
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 136
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 17
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) 0.42538
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 96721571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-18 11:02:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TDS.HHZ. 2021-10-18T10:56:11.54 3.0 undecidable manual Sn -0.01 0
IX.NSC3.EHZ.02 2021-10-18T10:55:50.88 3.0 undecidable manual Sg 16.139999 0
IV.BAG8.HNZ. 2021-10-18T10:55:40.89 3.0 undecidable manual Sn 1.79 0
IV.SARZ.HHZ. 2021-10-18T10:55:40.17 3.0 undecidable manual Sn 0.25 0
IV.ZEN8.EHZ. 2021-10-18T10:55:39.36 3.0 undecidable manual Sg 6.38 0
AC.VLO.HHZ. 2021-10-18T10:55:38.73 3.0 undecidable manual Pn -0.78 0
IV.PCN.EHZ. 2021-10-18T10:55:37.03 3.0 undecidable manual Sg 5.55 0
IT.GLNS.HNZ. 2021-10-18T10:55:28.56 3.0 undecidable manual Sg 14.02 0
CH.BERNI.HHZ. 2021-10-18T10:55:17.25 3.0 positive manual Pg 5.85 0
IV.VAGA.HNZ. 2021-10-18T10:55:11.96 3.0 undecidable manual Sn -1.65 0
IV.MCI.EHZ. 2021-10-18T10:55:08.72 3.0 undecidable manual Sn 1.04 0
IV.ZEN8.EHZ. 2021-10-18T10:55:05.83 3.0 undecidable manual Pg 7.01 0
IV.SARZ.HHZ. 2021-10-18T10:55:03.56 3.0 positive manual Pn 0.84 0
IV.BAG8.EHZ. 2021-10-18T10:55:01.94 3.0 negative manual Pn -0.32 0
IV.VBKN.HHZ. 2021-10-18T10:54:55.47 3.0 undecidable manual Pn -0.22 0
IV.PIEI.HHZ. 2021-10-18T10:54:36.69 0.6 undecidable manual S 325 0.4254 50 0.51 42
IV.MAGO.CHZ. 2021-10-18T10:54:36.77 3.0 undecidable manual P -1.32 0
IV.FRON.EHZ. 2021-10-18T10:54:33.77 0.3 undecidable manual S 100
IV.CING.HHZ. 2021-10-18T10:54:32.78 0.3 undecidable manual S 51 0.3049 50 0.19 70
IV.FIR.HHZ. 2021-10-18T10:54:32.90 3.0 undecidable manual P -2.33 0
IV.CSP1.EHZ. 2021-10-18T10:54:31.44 0.6 undecidable manual S 111 0.2626 50 0.09 48
IV.EL6.EHZ. 2021-10-18T10:54:30.14 0.3 undecidable manual S 50 0.223 111 0.13 72
IV.FDMO.HHZ. 2021-10-18T10:54:30.00 0.3 undecidable manual S 133 0.2185 112 0.14 72
IV.PIEI.HHZ. 2021-10-18T10:54:29.17 0.1 undecidable manual P 325 0.4254 50 -0.51 85
IV.ATCC.EHZ. 2021-10-18T10:54:28.15 0.3 undecidable manual S 270 0.1664 118 0.11 73
IV.CING.HHZ. 2021-10-18T10:54:27.56 0.1 positive manual P 51 0.3049 50 -0.05 96
IV.CSP1.EHZ. 2021-10-18T10:54:26.68 0.6 undecidable manual P 111 0.2626 50 -0.21 47
IV.EL6.EHZ. 2021-10-18T10:54:26.08 0.1 positive manual P 50 0.223 111 -0.04 97
IV.MML1.EHZ. 2021-10-18T10:54:25.96 0.3 undecidable manual S 134 0.1043 130 -0.07 74
IV.ATCC.EHZ. 2021-10-18T10:54:25.07 0.1 undecidable manual P 270 0.1664 118 0.09 97
IV.SNTG.HHZ. 2021-10-18T10:54:25.42 0.3 undecidable manual S 37 0.0872 135 -0.13 74
IV.FDMO.HHZ. 2021-10-18T10:54:25.94 0.6 undecidable manual P 133 0.2185 112 -0.09 48
IV.SNTG.HHZ. 2021-10-18T10:54:23.58 0.1 positive manual P 37 0.0872 135 0.03 100
IV.MML1.EHZ. 2021-10-18T10:54:23.93 1.0 undecidable manual P 134 0.1043 130 0.11 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SNTG.HHE. ML:0.7 6.895E-5 0.82 AML other m 2021-10-18T10:54:25.35
IV.SNTG.HHN. ML:0.8 8.525E-5 0.16 AML other m 2021-10-18T10:54:25.94
IV.MML1.EHN. ML:0.7 6.745E-5 0.2 AML other m 2021-10-18T10:54:26.45
IV.MML1.EHE. ML:0.6 5.12E-5 0.26 AML other m 2021-10-18T10:54:26.51
IV.ATCC.EHN. ML:0.9 6.96E-5 0.4 AML other m 2021-10-18T10:54:28.46
IV.ATCC.EHE. ML:0.8 4.83E-5 1.34 AML other m 2021-10-18T10:54:29.29
IV.FDMO.HHE. ML:0.6 2.32E-5 1.24 AML other m 2021-10-18T10:54:30.69
IV.FDMO.HHN. ML:0.6 2.475E-5 0.12 AML other m 2021-10-18T10:54:30.53
IV.MURB.HHE. ML:1.2 7.61E-5 0.22 AML other m 2021-10-18T10:54:32.07
IV.MURB.HHN. ML:1 5.225E-5 0.18 AML other m 2021-10-18T10:54:32.17
IV.CING.HHN. ML:0.7 2.175E-5 0.44 AML other m 2021-10-18T10:54:32.59
IV.CING.HHE. ML:0.7 2.13E-5 1.26 AML other m 2021-10-18T10:54:32.86
IV.VBKN.HHN. ML:4.4 0.003045 0.08 AML other m 2021-10-18T10:54:55.92
IV.VBKN.HHE. ML:4.3 0.002655 0.52 AML other m 2021-10-18T10:54:57.47
IV.PP3.EHN. ML:2.2 0.000307 1.28 AML other m 2021-10-18T10:54:59.77
IV.PP3.EHE. ML:0 0.000305 0.12 AML other m 2021-10-18T10:55:02.42
IV.BAG8.EHE. ML:0 8.255E-5 1.88 AML other m 2021-10-18T10:55:13.00
IV.BAG8.EHN. ML:0 0.000147 0.16 AML other m 2021-10-18T10:55:14.14
IV.VAGA.HNE. ML:0 0.0005265 0.78 AML other m 2021-10-18T10:55:33.93
IV.VAGA.HNN. ML:0 0.000573 0.78 AML other m 2021-10-18T10:55:33.94
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