Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 11-09-2021 and time 07:18:39 (UTC) in region 1 km NW Muccia (MC)

A magnitude ML 0.8 earthquake occured in region: 1 km NW Muccia (MC), on

  • 11-09-2021 07:18:39 (UTC)
  • 11-09-2021 09:18:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0910, 13.0350 at 13 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
Muccia MC 1 915 915
Pievebovigliana MC 5 866 1781
Pieve Torina MC 5 1458 3239
Camerino MC 6 6974 10213
Serravalle di Chienti MC 7 1070 11283
Fiordimonte MC 7 202 11485
Sefro MC 9 422 11907
Pioraco MC 11 1134 13041
Monte Cavallo MC 11 145 13186
Fiastra MC 12 559 13745
Acquacanina MC 13 121 13866
Castelraimondo MC 14 4587 18453
Fiuminata MC 14 1402 19855
Serrapetrona MC 16 966 20821
Caldarola MC 17 1823 22644
Gagliole MC 17 620 23264
Visso MC 18 1107 24371
Cessapalombo MC 18 512 24883
Ussita MC 18 444 25327
Belforte del Chienti MC 19 1886 27213
Matelica MC 19 9981 37194
Bolognola MC 19 142 37336
San Severino Marche MC 19 12726 50062
Camporotondo di Fiastrone MC 19 563 50625
Esanatoglia MC 19 2034 52659

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km E of Foligno (57155 inhabitants)
53 Km E of Perugia (166134 inhabitants)
67 Km NE of Terni (111501 inhabitants)
71 Km SW of Ancona (100861 inhabitants)
73 Km NW of Teramo (54892 inhabitants)
84 Km S of Fano (60888 inhabitants)
87 Km NW of L'Aquila (69753 inhabitants)
92 Km S of Pesaro (94582 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 0.8 2021-09-11
07:18:39		 43.0908 13.0352 13 2021-09-11
07:26:25		 Sala Sismica INGV-Roma 95292921
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-11 07:18:39 ± 0.08
Latitude 43.0908 ± 0.0027
Longitude 13.0352 ± 0.0049
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95292921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 399
Semi-minor axis of confidence ellipse (meter) 48
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 249
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
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 13
Number of defining phases 12
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) 0.26350
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 95292921
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-11 07:26:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.POFI.HHZ. 2021-09-11T07:18:55.83 3.0 negative manual Pg 0.02 0
IV.NRCA.HHZ. 2021-09-11T07:18:50.19 0.3 undecidable manual S 167 29.2485 98 0.01 73
IV.EL6.EHZ. 2021-09-11T07:18:49.62 0.3 undecidable manual S 11 26.9508 99 0.04 73
IV.SNTG.HHZ. 2021-09-11T07:18:47.53 0.3 undecidable manual S 337 19.7691 107 -0.16 72
IV.CSP1.EHZ. 2021-09-11T07:18:46.25 0.3 undecidable manual S 90 13.7751 121 0.03 75
IV.NRCA.HHZ. 2021-09-11T07:18:45.74 0.1 undecidable manual P 167 29.2485 98 -0.08 96
IV.EL6.EHZ. 2021-09-11T07:18:45.44 0.1 undecidable manual P 11 26.9508 99 -0.03 97
IV.FDMO.HHZ. 2021-09-11T07:18:44.71 0.3 undecidable manual S 145 7.3815 144 -0.24 73
IV.SNTG.HHZ. 2021-09-11T07:18:44.35 0.1 undecidable manual P 337 19.7691 107 -0.03 98
IV.MML1.EHZ. 2021-09-11T07:18:44.74 0.3 undecidable manual S 296 5.6943 151 0.02 76
IV.CSP1.EHZ. 2021-09-11T07:18:43.65 0.1 undecidable manual P 90 13.7751 121 0.12 98
IV.MML1.EHZ. 2021-09-11T07:18:42.85 0.1 undecidable manual P 296 5.6943 151 0.18 98
IV.FDMO.HHZ. 2021-09-11T07:18:42.87 0.1 undecidable manual P 145 7.3815 144 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MML1.EHN. ML:0.9 0.00008895000000000001 1.68 AML other m 2021-09-11T07:18:45.01
IV.MML1.EHE. ML:0.9 0.00008755 0.1 AML other m 2021-09-11T07:18:45.01
IV.FDMO.HHE. ML:1.0 0.0001325 0.08 AML other m 2021-09-11T07:18:45.15
IV.FDMO.HHN. ML:1.0 0.00013120000000000002 0.8 AML other m 2021-09-11T07:18:45.08
IV.SNTG.HHN. ML:0.6 0.0000313 0.1 AML other m 2021-09-11T07:18:47.83
IV.SNTG.HHE. ML:0.6 0.0000262 0.92 AML other m 2021-09-11T07:18:48.70
IV.NRCA.HHE. ML:0.7 0.00002305 1.28 AML other m 2021-09-11T07:18:51.05
IV.NRCA.HHN. ML:0.8 0.00002895 0.94 AML other m 2021-09-11T07:18:51.92
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