Earthquake with magnitude of ML 0.4 on date 02-10-2021 and time 01:15:00 (Italy) in region 3 km SE Monte Cavallo (MC)

A magnitude ML 0.4 earthquake occured in region: 3 km SE Monte Cavallo (MC), on

  • 01-10-2021 23:15:00 (UTC)
  • 02-10-2021 01:15:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.978, 13.032 at 11 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 3 145 145
Visso MC 7 1107 1252
Pieve Torina MC 8 1458 2710
Fiordimonte MC 8 202 2912
Ussita MC 10 444 3356
Pievebovigliana MC 10 866 4222
Preci PG 11 724 4946
Muccia MC 12 915 5861
Fiastra MC 12 559 6420
Serravalle di Chienti MC 12 1070 7490
Acquacanina MC 13 121 7611
Sellano PG 13 1079 8690
Castelsantangelo sul Nera MC 14 281 8971
Bolognola MC 16 142 9113
Camerino MC 18 6974 16087
Sefro MC 20 422 16509
Cerreto di Spoleto PG 20 1075 17584

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km E of Foligno (57155 inhabitants)
54 Km E of Perugia (166134 inhabitants)
56 Km NE of Terni (111501 inhabitants)
65 Km NW of Teramo (54892 inhabitants)
76 Km NW of L'Aquila (69753 inhabitants)
81 Km SW of Ancona (100861 inhabitants)
96 Km S of Fano (60888 inhabitants)
98 Km NE of Viterbo (67173 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 0.4 2021-10-01
23:15:00
42.9783 13.0323 11 2021-10-01
23:23:13
Sala Sismica INGV-Roma 96115631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-01 23:15:00 ± 0.09
Latitude 42.9783 ± 0.0063
Longitude 13.0323 ± 0.0061
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96115631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 767
Semi-minor axis of confidence ellipse (meter) 108
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 23
Circular confidence region, given by single value of horizontal uncertainty (meter) 770
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 129
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.37322
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 96115631
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-01 23:23:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MILN.HNZ. 2021-10-01T23:16:32.87 3.0 undecidable manual Sg 9.18 0
IX.PGN3.HHZ.02 2021-10-01T23:16:26.44 3.0 undecidable manual Sn 8.52 0
OT.OT05.EHZ. 2021-10-01T23:16:06.74 3.0 undecidable manual Sn 8.88 0
IT.GLNS.HNZ. 2021-10-01T23:15:44.63 3.0 undecidable manual Sn -0.91 0
IV.TST02.HHZ. 2021-10-01T23:15:40.55 3.0 undecidable manual Sn 1.99 0
IV.FIR.HHZ. 2021-10-01T23:15:36.61 3.0 undecidable manual Sg 1.25 0
IV.VENL.EHZ. 2021-10-01T23:15:29.21 3.0 negative manual Pg 3.92 0
IV.CRTC.HHZ. 2021-10-01T23:15:24.49 3.0 undecidable manual Sg 1.59 0
IV.BLLA.EHZ. 2021-10-01T23:15:23.68 3.0 undecidable manual Sn -5.79 0
IV.ARVD.HHZ. 2021-10-01T23:15:17.32 0.6 undecidable manual Sn -2.77 1.25
IV.FIR.HHZ. 2021-10-01T23:15:10.07 3.0 undecidable manual P -4.05 0
IV.MMO1.EHZ. 2021-10-01T23:15:09.76 0.1 undecidable manual S 110 0.2293 91 -0.05 96
IV.CSP1.EHZ. 2021-10-01T23:15:08.16 0.3 undecidable manual S 48 0.1691 92 0.12 72
IV.FOSV.EHZ. 2021-10-01T23:15:08.64 0.1 undecidable manual P 328 0.3732 90 0.29 89
IV.NRCA.HHE. 2021-10-01T23:15:07.25 0.6 undecidable manual S 157 0.1565 93 -0.41 45
IV.MC2.EHE. 2021-10-01T23:15:07.41 0.1 undecidable manual S 120 0.1331 97 0.46 91
IV.MML1.EHZ. 2021-10-01T23:15:06.90 0.1 undecidable manual S 342 0.1421 95 -0.33 93
IV.FDMO.HHZ. 2021-10-01T23:15:05.14 0.1 undecidable manual S 35 0.0701 133 -0.16 97
IV.CESI.HHZ. 2021-10-01T23:15:05.90 0.1 undecidable manual S 286 0.0971 117 -0.04 100
IV.MMO1.EHZ. 2021-10-01T23:15:05.90 0.1 undecidable manual P 110 0.2293 91 0 97
IV.MML1.EHZ. 2021-10-01T23:15:04.39 0.1 undecidable manual P 342 0.1421 95 -0.01 99
IV.FEMA.HNE. 2021-10-01T23:15:04.78 0.1 undecidable manual S 142 0.0207 165 0.25 96
IV.CSP1.EHZ. 2021-10-01T23:15:04.98 0.1 undecidable manual P 48 0.1691 92 0.1 97
IV.NRCA.HHE. 2021-10-01T23:15:04.55 0.1 undecidable manual P 157 0.1565 93 -0.11 97
IT.MTCL.HGE. 2021-10-01T23:15:04.30 0.1 undecidable manual S 303 0.0288 159 -0.31 96
IV.MC2.EHE. 2021-10-01T23:15:03.60 0.1 undecidable manual P 120 0.1331 97 -0.64 84
IV.FDMO.HHZ. 2021-10-01T23:15:03.45 0.1 undecidable manual P 35 0.0701 133 0.16 97
IV.CESI.HHZ. 2021-10-01T23:15:03.83 0.1 undecidable manual P 286 0.0971 117 0.16 96
IT.MTCL.HGE. 2021-10-01T23:15:03.04 0.1 undecidable manual P 303 0.0288 159 0.14 98
IV.FEMA.HNE. 2021-10-01T23:15:02.99 0.1 undecidable manual P 142 0.0207 165 0.14 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.6 5.295E-5 0.16 AML other m 2021-10-01T23:15:05.41
IV.FDMO.HHN. ML:0.7 5.8E-5 0.14 AML other m 2021-10-01T23:15:05.36
IV.CESI.HHE. ML:0.1 1.305E-5 0.2 AML other m 2021-10-01T23:15:06.04
IV.CESI.HHN. ML:0.2 1.98E-5 0.9 AML other m 2021-10-01T23:15:06.17
IV.TST02.HHN. ML:3.4 0.00122 1.58 AML other m 2021-10-01T23:15:41.07
IV.TST02.HHE. ML:3.5 0.00146 1.58 AML other m 2021-10-01T23:15:41.86
IV.FIR.HHN. ML:2.8 0.000263 0.7 AML other m 2021-10-01T23:15:47.46
IV.FIR.HHE. ML:2.8 0.000272 0.08 AML other m 2021-10-01T23:15:50.23
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