Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 10-08-2021 and time 07:13:59 (Italy) in region 4 km E Monte Cavallo (MC)

A magnitude ML 1.3 earthquake occured in region: 4 km E Monte Cavallo (MC), on

  • 10-08-2021 05:13:59 (UTC)
  • 10-08-2021 07:13:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0050, 13.0500 at 9 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 9 559 5252
Ussita MC 10 444 5696
Acquacanina MC 11 121 5817
Serravalle di Chienti MC 11 1070 6887
Preci PG 14 724 7611
Bolognola MC 15 142 7753
Camerino MC 15 6974 14727
Castelsantangelo sul Nera MC 15 281 15008
Sellano PG 16 1079 16087
Sefro MC 18 422 16509

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km E of Foligno (57155 inhabitants)
55 Km E of Perugia (166134 inhabitants)
59 Km NE of Terni (111501 inhabitants)
66 Km NW of Teramo (54892 inhabitants)
78 Km NW of L'Aquila (69753 inhabitants)
78 Km SW of Ancona (100861 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 1.3 2021-08-10
05:13:59		 43.0047 13.0503 9 2021-08-10
05:21:09		 Sala Sismica INGV-Roma 93909201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-10 05:13:59 ± 0.13
Latitude 43.0047 ± 0.0027
Longitude 13.0503 ± 0.0049
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 93909201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 414
Semi-minor axis of confidence ellipse (meter) 162
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 85
Circular confidence region, given by single value of horizontal uncertainty (meter) 410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 113
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.17717
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.6
Num. used stations 10
Type of magnitude ML
Reference to an origin 93909201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-10 05:21:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MURB.HHZ. 2021-08-10T05:14:14.76 3.0 undecidable manual Sg 2.94 0
IV.VCEL.EHZ. 2021-08-10T05:14:13.18 3.0 undecidable manual Pg 2.37 0
IV.TOLF.HHZ. 2021-08-10T05:14:13.37 3.0 undecidable manual P 0 0
IV.PE3.EHZ. 2021-08-10T05:14:08.98 3.0 positive manual P -0.05 0
IV.ASSB.HHZ. 2021-08-10T05:14:08.20 3.0 undecidable manual Sn -0.01 0
IV.NRCA.HHZ. 2021-08-10T05:14:07.30 0.6 undecidable manual S 165 19.6692 115 -0.11 49
IV.CSP1.EHZ. 2021-08-10T05:14:06.20 0.6 undecidable manual S 52 15.7731 120 -0.03 50
IV.MML1.EHE. 2021-08-10T05:14:05.33 0.6 undecidable manual S 332 13.6752 124 -0.26 48
IV.MURB.HHZ. 2021-08-10T05:14:04.72 3.0 negative manual P 0.6 0
IV.NRCA.HHZ. 2021-08-10T05:14:04.16 0.3 undecidable manual P 165 19.6692 115 -0.07 74
IV.CSP1.EHZ. 2021-08-10T05:14:03.58 1.0 undecidable manual P 52 15.7731 120 0.03 25
IV.MML1.EHE. 2021-08-10T05:14:03.25 0.6 undecidable manual P 332 13.6752 124 0.07 50
IT.MTCL.HGN. 2021-08-10T05:14:03.42 0.6 undecidable manual S 254 4.2957 155 0.02 51
IV.FDMO.HHZ. 2021-08-10T05:14:03.39 0.6 undecidable manual S 40 4.5954 153 -0.06 51
IV.FDMO.HHZ. 2021-08-10T05:14:02.07 0.1 negative manual P 40 4.5954 153 0.13 100
IT.MTCL.HGN. 2021-08-10T05:14:02.04 0.3 undecidable manual P 254 4.2957 155 0.12 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.1 0.000023606335 0.0992 AML other m 2021-08-10T05:14:03.45
IV.FDMO.HHN. ML:0.5 0.000053502020000000005 0.16 AML other m 2021-08-10T05:14:03.56
IV.CSP1.EHE. ML:0.6 0.000037641425 1.36 AML other m 2021-08-10T05:14:17.11
IV.CSP1.EHN. ML:0.5 0.000028171362 0.1216 AML other m 2021-08-10T05:14:06.55
IV.MURB.HHE. ML:1.1 0.00003718751 0.1984 AML other m 2021-08-10T05:14:09.12
IV.MURB.HHN. ML:1.6 0.00009138431499999999 0.0608 AML other m 2021-08-10T05:14:18.11
IV.MURB.HNE. ML:1.8 0.00016433609 0.7296 AML other m 2021-08-10T05:14:30.62
IV.MURB.HNN. ML:1.9 0.00018629105 0.8 AML other m 2021-08-10T05:14:30.62
IV.PE3.EHE. ML:1.8 0.000077055705 0.0608 AML other m 2021-08-10T05:14:10.67
IV.PE3.EHN. ML:1.9 0.00008984884999999999 0.0608 AML other m 2021-08-10T05:14:10.84
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