Earthquake with magnitude of ML 0.9 on date 25-11-2021 and time 08:13:57 (UTC) in region 4 km NW Visso (MC)

A magnitude ML 0.9 earthquake occured in region: 4 km NW Visso (MC), on

  • 25-11-2021 08:13:57 (UTC)
  • 25-11-2021 09:13:57 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.955, 13.049 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
Visso MC 4 1107 1107
Monte Cavallo MC 6 145 1252
Ussita MC 8 444 1696
Preci PG 8 724 2420
Fiordimonte MC 10 202 2622
Pieve Torina MC 10 1458 4080
Castelsantangelo sul Nera MC 11 281 4361
Sellano PG 12 1079 5440
Pievebovigliana MC 12 866 6306
Fiastra MC 13 559 6865
Acquacanina MC 13 121 6986
Muccia MC 14 915 7901
Bolognola MC 15 142 8043
Serravalle di Chienti MC 15 1070 9113
Norcia PG 18 4957 14070
Cerreto di Spoleto PG 18 1075 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Foligno (57155 inhabitants)
55 Km NE of Terni (111501 inhabitants)
56 Km E of Perugia (166134 inhabitants)
63 Km NW of Teramo (54892 inhabitants)
73 Km NW of L'Aquila (69753 inhabitants)
83 Km SW of Ancona (100861 inhabitants)
98 Km NE of Viterbo (67173 inhabitants)
99 Km S 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 earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 0.9 2021-11-25
08:13:57
42.9547 13.0488 10 2021-11-25
08:20:28
Sala Sismica INGV-Roma 97776481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-25 08:13:57 ± 0.22
Latitude 42.9547 ± 0.0045
Longitude 13.0488 ± 0.0074
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97776481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 607
Semi-minor axis of confidence ellipse (meter) 170
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 67
Circular confidence region, given by single value of horizontal uncertainty (meter) 610
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 138
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 12
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) 0.17807
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.5
Num. used stations 14
Type of magnitude ML
Reference to an origin 97776481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-25 08:20:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CELI.HHZ. 2021-11-25T08:15:10.21 3.0 undecidable manual Pg 14.57 0
IV.BSSO.HNZ. 2021-11-25T08:14:52.39 3.0 undecidable manual Sg 2.1 0
IV.TST01.HHZ. 2021-11-25T08:14:50.57 3.0 undecidable manual Sg 5.92 0
IV.CADC.EHZ. 2021-11-25T08:14:47.30 3.0 positive manual Pg 16.469999 0
IV.SGAL.EHZ. 2021-11-25T08:14:44.61 3.0 negative manual Pg 13.06 0
IV.VOBA.EHZ. 2021-11-25T08:14:37.61 3.0 positive manual Pg 5.63 0
IV.RIBO.EHZ.01 2021-11-25T08:14:27.13 3.0 undecidable manual Sg 20.27 0
IV.FOSV.EHZ. 2021-11-25T08:14:20.88 3.0 undecidable manual Sg 5 0
IV.ARVD.HHZ. 2021-11-25T08:14:19.11 3.0 undecidable manual Sn -2.49 0
IV.IMOL.HNZ. 2021-11-25T08:14:14.46 3.0 undecidable manual Pn 1.93 0
IV.BSSO.HNZ. 2021-11-25T08:14:14.55 3.0 positive manual Pn -7.28 0
IV.GAVE.EHZ. 2021-11-25T08:14:13.81 3.0 undecidable manual Sn 1.27 0
IV.MNTT.EHZ. 2021-11-25T08:14:12.73 3.0 positive manual Pg 4.26 0
IV.CSP1.EHZ. 2021-11-25T08:14:05.14 0.6 undecidable manual S 40 0.1781 116 0 50
IV.LAV9.HHZ. 2021-11-25T08:14:05.61 3.0 undecidable manual Pn 0 0
IV.PE3.EHZ. 2021-11-25T08:14:04.31 3.0 negative manual P -0.9 0
IV.MML1.EHZ. 2021-11-25T08:14:04.21 0.6 undecidable manual S 340 0.1682 117 -0.6 43
IV.CESI.HHZ. 2021-11-25T08:14:03.09 0.6 undecidable manual S 296 0.1169 127 -0.03 50
IV.NRCA.HNE. 2021-11-25T08:14:03.39 0.3 undecidable manual S 158 0.1304 124 -0.14 74
IV.FDMO.HHZ. 2021-11-25T08:14:02.33 0.6 undecidable manual S 19 0.0863 135 0.09 50
IV.MML1.EHZ. 2021-11-25T08:14:01.63 1.0 positive manual P 340 0.1682 117 -0.09 25
IV.CSP1.EHZ. 2021-11-25T08:14:01.97 0.6 negative manual P 40 0.1781 116 0.06 50
IT.MTCL.HGE. 2021-11-25T08:14:01.44 0.3 undecidable manual S 317 0.0531 149 0 77
IV.NRCA.HNE. 2021-11-25T08:14:00.92 0.3 undecidable manual P 158 0.1304 124 -0.06 75
IT.MTCL.HGE. 2021-11-25T08:14:00.13 0.3 undecidable manual P 317 0.0531 149 0.35 71
IV.FDMO.HHZ. 2021-11-25T08:14:00.48 1.0 undecidable manual P 19 0.0863 135 0.25 24
IV.CESI.HHZ. 2021-11-25T08:14:00.81 0.1 positive manual P 296 0.1169 127 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LAV9.HHN. ML:2.8 0.00037482515 0.0768 AML other m 2021-11-25T08:14:11.43
IV.LAV9.HHE. ML:2.8 0.000344595 0.1984 AML other m 2021-11-25T08:14:07.43
IV.MNTT.EHE. ML:2 0.0003295 0.08 AML other m 2021-11-25T08:14:18.48
IV.MNTT.EHN. ML:2.2 0.0004505 0.18 AML other m 2021-11-25T08:14:20.55
IV.BSSO.HNE. ML:6.4 0.8096774 7.0592 AML other m 2021-11-25T08:15:06.90
IV.BSSO.HNN. ML:6.4 0.81301625 7.136 AML other m 2021-11-25T08:15:06.90
IV.FDMO.HHE. ML:0.4 3.3770295E-5 0.1216 AML other m 2021-11-25T08:14:02.67
IV.FDMO.HHN. ML:0.3 2.384722E-5 0.1216 AML other m 2021-11-25T08:14:02.55
IV.CESI.HNE. ML:1 0.00011355241 0.9024 AML other m 2021-11-25T08:14:04.93
IV.CESI.HNN. ML:1.2 0.00015280895 0.8192 AML other m 2021-11-25T08:14:08.54
IV.CESI.HHE. ML:0.4 2.949558E-5 0.1024 AML other m 2021-11-25T08:14:03.25
IV.CESI.HHN. ML:0.4 2.4203495E-5 0.0768 AML other m 2021-11-25T08:14:03.39
IV.MML1.EHE. ML:0.4 2.05534E-5 1.3632 AML other m 2021-11-25T08:14:18.28
IV.MML1.EHN. ML:0.4 1.780716E-5 1.0432 AML other m 2021-11-25T08:14:18.10
IV.MML1.HNE. ML:1.1 9.193741E-5 0.5056 AML other m 2021-11-25T08:14:05.86
IV.MML1.HNN. ML:1.4 0.0001809114 1.2096 AML other m 2021-11-25T08:14:02.72
IV.CSP1.EHE. ML:0.9 6.6256955E-5 1.7792 AML other m 2021-11-25T08:14:20.16
IV.CSP1.EHN. ML:1 8.4129265E-5 1.6 AML other m 2021-11-25T08:14:17.70
IV.PE3.EHE. ML:1.6 4.5949455E-5 0.1024 AML other m 2021-11-25T08:14:06.13
IV.PE3.EHN. ML:1.7 5.177843E-5 0.0768 AML other m 2021-11-25T08:14:21.25
IV.LAV9.HNE. ML:2.8 0.0003556756 0.192 AML other m 2021-11-25T08:14:10.44
IV.LAV9.HNN. ML:2.8 0.0003547043 0.0704 AML other m 2021-11-25T08:14:11.43
IV.IMOL.EHE. ML:2.5 0.0001055 0.4224 AML other m 2021-11-25T08:14:54.67
IV.IMOL.EHN. ML:2.5 0.0001060316 0.4032 AML other m 2021-11-25T08:14:37.23
IV.IMOL.HNE. ML:3.6 0.0012324105 0.0576 AML other m 2021-11-25T08:15:01.83
IV.IMOL.HNN. ML:3.4 0.0008222118 0.0576 AML other m 2021-11-25T08:15:01.98
IV.BSSO.HHE. ML:2.6 0.000106677175 2.016 AML other m 2021-11-25T08:15:01.75
IV.BSSO.HHN. ML:2.4 7.2091755E-5 1.6384 AML other m 2021-11-25T08:14:30.29
IV.VOBA.EHE. ML:3.5 0.00023116325 0.0384 AML other m 2021-11-25T08:14:40.60
IV.VOBA.EHN. ML:3.5 0.00025907775 0.0576 AML other m 2021-11-25T08:14:40.64
IV.VOBA.HNE. ML:3.8 0.0005482255 0.0448 AML other m 2021-11-25T08:14:40.66
IV.VOBA.HNN. ML:3.8 0.00046845285 0.0576 AML other m 2021-11-25T08:15:53.63
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