Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.6 on date 25-09-2021 and time 11:29:21 (UTC) in region 2 km E Serravalle di Chienti (MC)

A magnitude ML 0.6 earthquake occured in region: 2 km E Serravalle di Chienti (MC), on

  • 25-09-2021 11:29:21 (UTC)
  • 25-09-2021 13:29:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0680, 12.9810 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.

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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
Serravalle di Chienti MC 2 1070 1070
Muccia MC 5 915 1985
Pieve Torina MC 6 1458 3443
Monte Cavallo MC 8 145 3588
Pievebovigliana MC 9 866 4454
Sefro MC 9 422 4876
Fiordimonte MC 10 202 5078
Camerino MC 10 6974 12052
Pioraco MC 12 1134 13186
Fiuminata MC 14 1402 14588
Fiastra MC 15 559 15147
Nocera Umbra PG 16 5839 20986
Acquacanina MC 16 121 21107
Castelraimondo MC 17 4587 25694
Visso MC 18 1107 26801
Valtopina PG 18 1398 28199
Ussita MC 19 444 28643

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km E of Foligno (57155 inhabitants)
48 Km E of Perugia (166134 inhabitants)
63 Km NE of Terni (111501 inhabitants)
75 Km NW of Teramo (54892 inhabitants)
75 Km SW of Ancona (100861 inhabitants)
86 Km S of Fano (60888 inhabitants)
87 Km NW of L'Aquila (69753 inhabitants)
94 Km S of Pesaro (94582 inhabitants)
99 Km E of Arezzo (99543 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 0.6 2021-09-25
11:29:21		 43.0682 12.9813 12 2021-09-25
11:37:47		 Sala Sismica INGV-Roma 95866701
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-25 11:29:21 ± 0.07
Latitude 43.0682 ± 0.0036
Longitude 12.9813 ± 0.0037
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 95866701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 369
Semi-minor axis of confidence ellipse (meter) 57
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 187
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.51351
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 95866701
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-25 11:37:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
AC.KBN.HHZ. 2021-09-25T11:30:14.14 3.0 undecidable manual Sn -0.71 0
OX.CIMO.HHZ. 2021-09-25T11:30:04.38 3.0 positive manual Pn -0.05 0
IV.VIVA.HHZ. 2021-09-25T11:29:58.86 3.0 undecidable manual Sg 15.69 0
IV.MOMA.HHZ. 2021-09-25T11:29:54.60 3.0 undecidable manual Sn -8.84 0
IV.OSSC.HHZ. 2021-09-25T11:29:35.68 3.0 undecidable manual Pn -2.5 0
IV.ESCV.HHZ. 2021-09-25T11:29:34.43 3.0 undecidable manual Sn -0.27 0
IV.SOI.EHZ. 2021-09-25T11:29:34.55 3.0 undecidable manual Sg 8.52 0
IV.CSNT.HHZ. 2021-09-25T11:29:32.08 3.0 positive manual Pn -5.3 0
IV.NRCA.HHZ. 2021-09-25T11:29:31.02 0.1 undecidable manual S 157 28.1496 94 -0.08 95
IV.ASSB.HHZ. 2021-09-25T11:29:30.59 0.1 undecidable manual S 264 26.2515 94 -0.01 96
IV.SNTG.HHZ. 2021-09-25T11:29:28.88 0.1 undecidable manual S 351 20.9679 97 -0.31 92
IV.CSP1.EHZ. 2021-09-25T11:29:28.48 0.1 undecidable manual S 82 18.2706 100 0 98
IV.FDMO.HHZ. 2021-09-25T11:29:26.24 0.1 undecidable manual S 112 9.2796 130 -0.05 98
IV.ASSB.HHZ. 2021-09-25T11:29:26.62 0.1 undecidable manual P 264 26.2515 94 0.03 96
IV.NRCA.HHZ. 2021-09-25T11:29:26.77 0.1 undecidable manual P 157 28.1496 94 -0.11 94
IV.CSP1.EHZ. 2021-09-25T11:29:25.57 0.1 undecidable manual P 82 18.2706 100 0.21 94
IV.MML1.EHZ. 2021-09-25T11:29:25.60 0.1 undecidable manual S 351 5.0949 151 0.03 100
IV.SNTG.HHZ. 2021-09-25T11:29:25.83 0.1 undecidable manual P 351 20.9679 97 0.06 96
IV.FDMO.HHZ. 2021-09-25T11:29:24.21 0.3 undecidable manual P 112 9.2796 130 0.11 73
IV.MML1.EHZ. 2021-09-25T11:29:23.83 0.1 undecidable manual P 351 5.0949 151 0.14 98
IV.PIPA.HHZ. 2021-09-25T11:29:16.87 3.0 undecidable manual Sg 11.38 0
IV.ARRO.EHZ. 2021-09-25T11:29:13.40 0.3 undecidable manual S 56.9985 -9.99 0
OT.OT17.EHZ. 2021-09-25T11:29:11.12 3.0 undecidable manual Sn -6.56 0
IV.ARRO.EHZ. 2021-09-25T11:29:11.68 3.0 undecidable manual P 56.9985 -9.99 0
IV.ESCV.HHZ. 2021-09-25T11:29:04.85 3.0 undecidable manual Pn -1.01 0
IV.IST3.HHZ. 2021-09-25T11:28:51.46 3.0 negative manual Pn 0.02 0
IV.PZUN.HHZ. 2021-09-25T11:28:48.39 3.0 undecidable manual Pg 4.4 0
IX.SSB3.HHZ.02 2021-09-25T11:28:48.03 3.0 positive manual P -0.86 0
IV.TDS.HHZ. 2021-09-25T11:28:48.76 3.0 negative manual P 3.99 0
IV.ORI.HHZ. 2021-09-25T11:28:44.43 3.0 undecidable manual P -0.05 0
IV.CDRU.HNZ. 2021-09-25T11:28:43.40 3.0 undecidable manual P 0.7 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MML1.EHN. ML:0.6 0.000049250000000000004 1.68 AML other m 2021-09-25T11:29:25.84
IV.MML1.EHE. ML:0.6 0.00005175 0.1 AML other m 2021-09-25T11:29:26.06
IV.FDMO.HHE. ML:0.5 0.00003915 0.22 AML other m 2021-09-25T11:29:26.38
IV.FDMO.HHN. ML:0.5 0.000042300000000000005 0.16 AML other m 2021-09-25T11:29:26.49
IV.ASSB.HHN. ML:0.6 0.00001815 1.18 AML other m 2021-09-25T11:29:31.84
IV.CSP1.EHE. ML:0.8 0.00004391 0.42 AML other m 2021-09-25T11:29:31.76
IV.ASSB.HHE. ML:0.4 0.00001423 1.22 AML other m 2021-09-25T11:29:32.25
IV.CSP1.EHN. ML:0.9 0.000056500000000000005 0.48 AML other m 2021-09-25T11:29:32.24
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