Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 28-06-2021 and time 17:02:18 (Italy) in region 4 km SE Serravalle di Chienti (MC)

A magnitude ML 0.9 earthquake occured in region: 4 km SE Serravalle di Chienti (MC), on

  • 28-06-2021 15:02:18 (UTC)
  • 28-06-2021 17:02:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0500, 12.9850 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.

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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 4 1070 1070
Pieve Torina MC 5 1458 2528
Muccia MC 6 915 3443
Monte Cavallo MC 6 145 3588
Pievebovigliana MC 8 866 4454
Fiordimonte MC 9 202 4656
Sefro MC 11 422 5078
Camerino MC 12 6974 12052
Fiastra MC 14 559 12611
Pioraco MC 14 1134 13745
Acquacanina MC 16 121 13866
Visso MC 16 1107 14973
Fiuminata MC 16 1402 16375
Ussita MC 17 444 16819
Nocera Umbra PG 17 5839 22658
Sellano PG 18 1079 23737
Valtopina PG 19 1398 25135
Castelraimondo MC 19 4587 29722
Preci PG 19 724 30446

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km E of Foligno (57155 inhabitants)
49 Km E of Perugia (166134 inhabitants)
61 Km NE of Terni (111501 inhabitants)
73 Km NW of Teramo (54892 inhabitants)
77 Km SW of Ancona (100861 inhabitants)
85 Km NW of L'Aquila (69753 inhabitants)
88 Km S of Fano (60888 inhabitants)
96 Km S of Pesaro (94582 inhabitants)
100 Km NE of Viterbo (67173 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 0.9 2021-06-28
15:02:18		 43.0498 12.9852 11 2021-06-28
15:10:10		 Sala Sismica INGV-Roma 92005231
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-28 15:02:18 ± 0.11
Latitude 43.0498 ± 0.0036
Longitude 12.9852 ± 0.0049
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 92005231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 428
Semi-minor axis of confidence ellipse (meter) 148
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 319
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) 83
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.29228
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 92005231
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-28 15:10:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIZZ.HHZ. 2021-06-28T15:03:57.30 3.0 undecidable manual Sn -4.3 0
IV.MNTV.EHZ. 2021-06-28T15:03:53.58 3.0 undecidable manual Sg 17.23 0
IV.TDS.HHZ. 2021-06-28T15:03:52.79 3.0 undecidable manual Sg 3.43 0
IV.ZEN8.HNZ. 2021-06-28T15:03:41.97 3.0 undecidable manual Sn -4.91 0
SL.KOGS.BHZ. 2021-06-28T15:03:30.17 3.0 undecidable manual Pg 13.6 0
ST.CARE.EHZ. 2021-06-28T15:03:28.62 3.0 undecidable manual Pg 14.35 0
IV.MFNL.HHZ. 2021-06-28T15:03:28.22 3.0 negative manual Pg 7.94 0
AC.VLO.HHZ. 2021-06-28T15:03:22.94 3.0 undecidable manual Pn -2.7 0
IV.GIZZ.HHZ. 2021-06-28T15:03:21.88 3.0 positive manual Pg 9.01 0
IV.SALO.HHZ. 2021-06-28T15:03:19.82 3.0 undecidable manual Pg 14.38 0
IV.ZONE.HHZ. 2021-06-28T15:03:18.96 3.0 undecidable manual Pg 9.64 0
IV.VOBA.EHZ. 2021-06-28T15:03:17.37 3.0 positive manual Pg 11.54 0
IV.SPS2.HHZ. 2021-06-28T15:03:16.04 3.0 undecidable manual Pg 5.97 0
MN.TRI.HHZ. 2021-06-28T15:03:01.32 3.0 positive manual Pn 2.16 0
IV.NDIM.HNZ. 2021-06-28T15:03:00.94 3.0 negative manual Pg 5.8 0
IV.BSSO.HHZ. 2021-06-28T15:02:43.82 3.0 undecidable manual Sn -9.5 0
IV.EL6.EHZ. 2021-06-28T15:02:29.70 0.3 undecidable manual S 17 32.4453 91 0.22 69
IV.TOLF.HHZ. 2021-06-28T15:02:28.00 3.0 positive manual Pn -1.43 0
IV.ASSB.HHZ. 2021-06-28T15:02:27.73 0.1 undecidable manual S 268 26.4513 91 -0.17 95
IV.CSP1.EHZ. 2021-06-28T15:02:25.68 0.1 undecidable manual S 75 18.3705 93 -0.07 97
IV.EL6.EHZ. 2021-06-28T15:02:24.61 0.1 undecidable manual P 17 32.4453 91 -0.18 93
IV.ASSB.HHZ. 2021-06-28T15:02:23.72 0.1 undecidable manual P 268 26.4513 91 -0.16 95
IV.FEMA.HNZ. 2021-06-28T15:02:23.81 0.1 undecidable manual S 152 11.0778 116 -0.03 99
IV.FDMO.HHZ. 2021-06-28T15:02:23.11 0.1 undecidable manual S 100 8.3805 130 -0.14 97
IV.POFI.HHZ. 2021-06-28T15:02:23.37 3.0 negative manual Pn -3.97 0
IV.CESI.HHZ. 2021-06-28T15:02:23.27 0.1 undecidable manual S 233 8.1807 131 0.06 99
IV.MML1.EHE. 2021-06-28T15:02:23.08 0.1 undecidable manual S 351 7.0929 137 0.08 100
IV.CSP1.EHZ. 2021-06-28T15:02:22.50 0.1 undecidable manual P 75 18.3705 93 -0.14 96
IT.MTCL.HGZ. 2021-06-28T15:02:22.63 0.1 undecidable manual S 169 6.2937 141 -0.23 96
IV.FEMA.HNZ. 2021-06-28T15:02:22.22 0.1 undecidable manual P 152 11.0778 116 0.69 83
IV.MML1.EHE. 2021-06-28T15:02:21.20 0.1 undecidable manual P 351 7.0929 137 0.15 98
IV.FDMO.HHZ. 2021-06-28T15:02:21.17 0.1 undecidable manual P 100 8.3805 130 -0.02 100
IV.CESI.HHZ. 2021-06-28T15:02:21.26 0.1 negative manual P 233 8.1807 131 0.09 98
IT.MTCL.HGZ. 2021-06-28T15:02:20.92 0.1 undecidable manual P 169 6.2937 141 -0.04 100
IV.ARRO.EHZ. 2021-06-28T15:02:19.18 3.0 undecidable manual P 0.7 0
IV.TERO.HHZ. 2021-06-28T15:02:16.68 3.0 undecidable manual Pn -0.49 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.8 0.00007475 0.22 AML other m 2021-06-28T15:02:23.27
IV.FDMO.HHN. ML:1.0 0.0001285 0.1 AML other m 2021-06-28T15:02:23.32
IV.CESI.HHE. ML:1.0 0.0001265 0.2 AML other m 2021-06-28T15:02:23.39
IV.CESI.HHN. ML:1.1 0.00014850000000000003 0.08 AML other m 2021-06-28T15:02:23.49
IV.CSP1.EHN. ML:1.0 0.000077 0.16 AML other m 2021-06-28T15:02:25.82
IV.CSP1.EHE. ML:0.8 0.000048962900000000005 0.0896 AML other m 2021-06-28T15:02:25.81
IV.ASSB.HHE. ML:0.7 0.000029999999999999997 1.52 AML other m 2021-06-28T15:02:28.15
IV.ASSB.HHN. ML:0.7 0.0000256 0.72 AML other m 2021-06-28T15:02:28.58
IV.CESI.HNE. ML:0.9 0.0001045756 0.1536 AML other m 2021-06-28T15:02:23.39
IV.CESI.HNN. ML:1.1 0.00017538195 0.6912 AML other m 2021-06-28T15:02:23.67
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