Earthquake with magnitude of ML 1.6 on date 27-11-2021 and time 02:59:25 (UTC) in region 4 km NW Monte Cavallo (MC)

A magnitude ML 1.6 earthquake occured in region: 4 km NW Monte Cavallo (MC), on

  • 27-11-2021 02:59:25 (UTC)
  • 27-11-2021 03:59:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.019, 12.963 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
Monte Cavallo MC 4 145 145
Serravalle di Chienti MC 6 1070 1215
Pieve Torina MC 8 1458 2673
Muccia MC 10 915 3588
Fiordimonte MC 11 202 3790
Pievebovigliana MC 11 866 4656
Visso MC 14 1107 5763
Sefro MC 14 422 6185
Sellano PG 15 1079 7264
Camerino MC 16 6974 14238
Fiastra MC 16 559 14797
Ussita MC 17 444 15241
Preci PG 17 724 15965
Nocera Umbra PG 17 5839 21804
Acquacanina MC 17 121 21925
Valtopina PG 18 1398 23323
Pioraco MC 18 1134 24457
Fiuminata MC 19 1402 25859

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km E of Foligno (57155 inhabitants)
48 Km E of Perugia (166134 inhabitants)
57 Km NE of Terni (111501 inhabitants)
73 Km NW of Teramo (54892 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
82 Km NW of L'Aquila (69753 inhabitants)
92 Km S of Fano (60888 inhabitants)
97 Km NE of Viterbo (67173 inhabitants)
99 Km S of Pesaro (94582 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 1.6 2021-11-27
02:59:25
43.0192 12.9628 12 2021-11-27
03:07:34
Sala Sismica INGV-Roma 97854441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-27 02:59:25 ± 0.07
Latitude 43.0192 ± 0.0054
Longitude 12.9628 ± 0.0049
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 97854441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 437
Semi-minor axis of confidence ellipse (meter) 386
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 202
Circular confidence region, given by single value of horizontal uncertainty (meter) 440
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.47844
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 97854441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-27 03:07:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VIVA.HHZ. 2021-11-27T02:59:57.57 3.0 undecidable manual Sn -0.7 0
IV.SRES.HHZ. 2021-11-27T02:59:39.21 3.0 positive manual P 2.05 0
IV.ARVD.HHZ. 2021-11-27T02:59:34.92 0.6 negative manual P 358 0.4784 91 0.03 45
IV.MF5.EHZ. 2021-11-27T02:59:33.28 0.1 undecidable manual P 95 0.3642 92 0.34 88
IV.CSP1.EHZ. 2021-11-27T02:59:33.37 0.3 undecidable manual S 68 0.1907 96 -0.04 72
IV.FOSV.EHZ. 2021-11-27T02:59:32.03 0.6 negative manual P 332 0.3121 92 -0.01 47
IV.ATCC.EHZ. 2021-11-27T02:59:31.73 0.3 undecidable manual P 305 0.2878 93 0.1 69
IV.EL6.EHZ. 2021-11-27T02:59:31.39 1.0 negative manual P 18 0.3265 92 -0.89 18
IV.GUMA.HHZ. 2021-11-27T02:59:31.61 0.1 undecidable manual P 81 0.2752 93 0.2 92
IV.MMO1.EHZ. 2021-11-27T02:59:31.46 0.1 undecidable manual P 114 0.2923 93 -0.24 91
IV.FDMO.HHZ. 2021-11-27T02:59:30.59 0.3 undecidable manual S 79 0.0926 125 -0.06 73
IV.MC2.EHZ. 2021-11-27T02:59:30.28 0.1 undecidable manual P 123 0.197 96 0.2 93
IV.SNTG.HHZ. 2021-11-27T02:59:30.67 0.3 positive manual P 356 0.2365 94 -0.08 71
IV.NRCA.HHZ. 2021-11-27T02:59:30.13 0.1 undecidable manual P 149 0.2158 95 -0.27 92
IV.ASSB.HHZ. 2021-11-27T02:59:30.42 0.1 positive manual P 276 0.223 94 -0.11 96
IV.CSP1.EHZ. 2021-11-27T02:59:29.96 0.1 undecidable manual P 68 0.1907 96 -0.02 97
IT.MTCL.HGZ. 2021-11-27T02:59:29.56 0.3 undecidable manual S 133 0.0369 156 -0.03 74
IV.CESI.HHZ. 2021-11-27T02:59:29.77 0.3 undecidable manual S 252 0.045 151 0.07 74
IV.FDMO.HHZ. 2021-11-27T02:59:28.38 0.1 undecidable manual P 79 0.0926 125 0 99
IT.MTCL.HGZ. 2021-11-27T02:59:27.78 0.1 undecidable manual P 133 0.0369 156 0.01 100
IV.CESI.HHZ. 2021-11-27T02:59:27.93 0.3 undecidable manual P 252 0.045 151 0.1 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IT.MTCL.HGN. ML:3.7 0.07285 0.14 AML other m 2021-11-27T02:59:29.86
IV.CESI.HHE. ML:1.5 0.0004385 1.66 AML other m 2021-11-27T02:59:29.07
IV.CESI.HNE. ML:1.4 0.0003925 1.68 AML other m 2021-11-27T02:59:29.07
IT.MTCL.HGE. ML:3.6 0.0617 1.32 AML other m 2021-11-27T02:59:29.99
IV.CESI.HHN. ML:1.6 0.00063 1.86 AML other m 2021-11-27T02:59:29.06
IV.CESI.HNN. ML:1.6 0.0005675 1.84 AML other m 2021-11-27T02:59:29.07
IV.FDMO.HHN. ML:1.7 0.0005665 1.48 AML other m 2021-11-27T02:59:30.79
IV.FDMO.HHE. ML:1.6 0.000426 0.4 AML other m 2021-11-27T02:59:30.97
IV.CSP1.EHE. ML:2 0.00079 0.08 AML other m 2021-11-27T02:59:33.68
IV.CSP1.EHN. ML:2 0.0007905 0.32 AML other m 2021-11-27T02:59:33.60
IV.NRCA.HNN. ML:2 0.000552 0.12 AML other m 2021-11-27T02:59:33.98
IV.NRCA.HHN. ML:1.9 0.0005455 0.12 AML other m 2021-11-27T02:59:33.98
IV.NRCA.HNE. ML:1.9 0.000499 1.28 AML other m 2021-11-27T02:59:33.35
IV.NRCA.HHE. ML:1.9 0.0005225 0.1 AML other m 2021-11-27T02:59:33.94
IV.ASSB.HHN. ML:1.5 0.0001725 0.06 AML other m 2021-11-27T02:59:34.63
IV.ASSB.HHE. ML:1.4 0.000146 0.08 AML other m 2021-11-27T02:59:34.85
IV.GUMA.HHE. ML:1.7 0.0002245 0.18 AML other m 2021-11-27T02:59:36.77
IV.GUMA.HHN. ML:1.6 0.00017155 0.86 AML other m 2021-11-27T02:59:36.86
IV.ATCC.EHN. ML:1.4 0.00012075 0.46 AML other m 2021-11-27T02:59:37.44
IV.ATCC.EHE. ML:1.5 0.0001375 0.5 AML other m 2021-11-27T02:59:37.67
IV.ARVD.HHE. ML:1.4 6.145E-5 0.58 AML other m 2021-11-27T02:59:45.34
IV.ARVD.HHN. ML:1.4 5.65E-5 0.42 AML other m 2021-11-27T02:59:45.65
IV.VIVA.HHN. ML:2.9 0.000483 0.26 AML other m 2021-11-27T03:00:00.14
IV.VIVA.HHE. ML:2.9 0.00047 0.78 AML other m 2021-11-27T03:00:00.48
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