Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 26-10-2021 and time 15:07:45 (UTC) in region 4 km E Monte Cavallo (MC)

A magnitude ML 0.7 earthquake occured in region: 4 km E Monte Cavallo (MC), on

  • 26-10-2021 15:07:45 (UTC)
  • 26-10-2021 17:07:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0050, 13.0440 at 8 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.

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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
Pieve Torina MC 5 1458 1603
Fiordimonte MC 5 202 1805
Pievebovigliana MC 7 866 2671
Muccia MC 9 915 3586
Visso MC 9 1107 4693
Fiastra MC 10 559 5252
Ussita MC 10 444 5696
Serravalle di Chienti MC 11 1070 6766
Acquacanina MC 11 121 6887
Preci PG 14 724 7611
Camerino MC 15 6974 14585
Bolognola MC 15 142 14727
Castelsantangelo sul Nera MC 15 281 15008
Sellano PG 16 1079 16087
Sefro MC 18 422 16509
Pioraco MC 20 1134 17643

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Foligno (57155 inhabitants)
54 Km E of Perugia (166134 inhabitants)
59 Km NE of Terni (111501 inhabitants)
66 Km NW of Teramo (54892 inhabitants)
78 Km SW of Ancona (100861 inhabitants)
78 Km NW of L'Aquila (69753 inhabitants)
93 Km S of Fano (60888 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 0.7 2021-10-26
15:07:45		 43.0052 13.044 8 2021-10-26
15:17:35		 Sala Sismica INGV-Roma 97004341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-26 15:07:45 ± 0.13
Latitude 43.0052 ± 0.0036
Longitude 13.0440 ± 0.0037
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97004341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 430
Semi-minor axis of confidence ellipse (meter) 96
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 172
Circular confidence region, given by single value of horizontal uncertainty (meter) 430.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.14569
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 97004341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-26 15:17:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PP3.EHZ. 2021-10-26T15:08:03.98 3.0 undecidable manual S -2.18 0
IV.CSP1.EHZ. 2021-10-26T15:07:52.13 0.6 undecidable manual S 54 16.1727 115 0 49
IV.MC2.EHZ. 2021-10-26T15:07:51.87 0.3 undecidable manual S 131 15.6732 116 -0.1 72
IV.CESI.HHZ. 2021-10-26T15:07:50.63 0.3 undecidable manual S 270 11.2776 124 -0.02 74
IV.CSP1.EHZ. 2021-10-26T15:07:49.40 0.3 undecidable manual P 54 16.1727 115 -0.11 72
IV.FDMO.HHZ. 2021-10-26T15:07:49.12 0.6 undecidable manual S 45 4.995 147 0.06 49
IV.MC2.EHZ. 2021-10-26T15:07:49.94 1.0 undecidable manual P 131 15.6732 116 0.52 22
IV.CESI.HHZ. 2021-10-26T15:07:48.64 0.3 positive manual P 270 11.2776 124 -0.01 74
IT.MTCL.HGZ. 2021-10-26T15:07:48.83 0.3 undecidable manual S 251 3.7962 153 -0.03 75
IT.MTCL.HGZ. 2021-10-26T15:07:47.64 0.1 undecidable manual P 251 3.7962 153 0.02 100
IV.FDMO.HHZ. 2021-10-26T15:07:47.77 0.1 negative manual P 45 4.995 147 0.03 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.0 0.000058113315 0.8448 AML other m 2021-10-26T15:07:49.32
IV.FDMO.HHN. ML:0.0 0.0000477099 0.3712 AML other m 2021-10-26T15:07:49.71
IV.CESI.HNE. ML:0.9 0.00009862438 0.7296 AML other m 2021-10-26T15:07:52.04
IV.CESI.HNN. ML:1.3 0.00025243825 1.2032 AML other m 2021-10-26T15:07:53.13
IV.CESI.HHE. ML:0.0 0.0000166251875 0.3456 AML other m 2021-10-26T15:07:51.12
IV.CESI.HHN. ML:0.4 0.000028775464 0.1792 AML other m 2021-10-26T15:07:50.94
IV.CSP1.EHE. ML:0.7 0.000048113370000000004 0.7424 AML other m 2021-10-26T15:07:49.15
IV.CSP1.EHN. ML:0.7 0.00005090239 1.4336 AML other m 2021-10-26T15:07:52.36
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