Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 23-06-2021 and time 06:27:42 (Italy) in region 6 km W Serravalle di Chienti (MC)

A magnitude ML 1.8 earthquake occured in region: 6 km W Serravalle di Chienti (MC), on

  • 23-06-2021 04:27:42 (UTC)
  • 23-06-2021 06:27:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0540, 12.8840 at 8 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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 6 1070 1070
Nocera Umbra PG 10 5839 6909
Valtopina PG 11 1398 8307
Monte Cavallo MC 12 145 8452
Sefro MC 12 422 8874
Muccia MC 14 915 9789
Pieve Torina MC 14 1458 11247
Fiuminata MC 16 1402 12649
Pioraco MC 16 1134 13783
Pievebovigliana MC 16 866 14649
Fiordimonte MC 17 202 14851
Camerino MC 18 6974 21825
Foligno PG 18 57155 78980
Spello PG 19 8645 87625
Sellano PG 19 1079 88704

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NE of Foligno (57155 inhabitants)
41 Km E of Perugia (166134 inhabitants)
58 Km NE of Terni (111501 inhabitants)
80 Km NW of Teramo (54892 inhabitants)
81 Km SW of Ancona (100861 inhabitants)
89 Km S of Fano (60888 inhabitants)
89 Km NW of L'Aquila (69753 inhabitants)
93 Km E of Arezzo (99543 inhabitants)
95 Km NE of Viterbo (67173 inhabitants)
95 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
Bulletin
Rev1000 		ML 1.8 2021-06-23
04:27:42		 43.054 12.8842 8 2021-12-29
11:12:27		 Bollettino Sismico Italiano INGV 95152151
Reviewed
Rev100 		ML 1.7 2021-06-23
04:27:42		 43.0548 12.8863 9 2021-06-23
04:41:49		 Sala Sismica INGV-Roma 91749331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-23 04:27:42 ± 0.04
Latitude 43.0540 ± 0.0018
Longitude 12.8842 ± 0.0025
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 95152151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 204
Semi-minor axis of confidence ellipse (meter) 146
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 32
Circular confidence region, given by single value of horizontal uncertainty (meter) 200.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 44
Number of associated phases, regardless of their use for origin computation 47
Number of defining phases 47
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.05126
Epicentral distance of station farthest from the epicenter (degree) 0.47754
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 26
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 49
Type of magnitude ML
Reference to an origin 95152151
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-10-29 21:45:29

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 65
Type of magnitude ML
Reference to an origin 91749331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-23 04:41:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2021-06-23T04:27:58.49 0.3 undecidable manual S 99 47.2194 50 0.1 70
IV.CING.HHZ. 2021-06-23T04:27:57.69 0.6 undecidable manual S 35 43.623 50 0.26 45
IV.GAVE.EHZ. 2021-06-23T04:27:56.40 0.6 undecidable manual S 179 40.1265 50 -0.09 47
IV.MURB.HHZ. 2021-06-23T04:27:56.38 0.6 undecidable manual S 309 37.2294 50 0.68 41
IV.GUMA.HHZ. 2021-06-23T04:27:56.27 0.6 undecidable manual S 88 36.5412 50 0.73 40
IV.MMO1.EHZ. 2021-06-23T04:27:56.35 0.6 undecidable manual S 115 39.8268 50 -0.05 48
IV.EL6.EHZ. 2021-06-23T04:27:55.08 0.3 undecidable manual S 30 35.2425 50 -0.1 71
IV.MOMA.HHZ. 2021-06-23T04:27:55.85 0.3 undecidable manual S 223 37.7289 50 0.01 72
IV.FOSV.EHZ. 2021-06-23T04:27:53.07 0.3 undecidable manual S 340 28.5492 106 0.07 72
IV.MDAR.HNZ. 2021-06-23T04:27:52.21 0.6 undecidable manual S 54 25.9518 108 0.05 49
IV.FRON.EHZ. 2021-06-23T04:27:52.45 0.3 undecidable manual P 346 53.0025 50 -0.19 68
IV.MF5.EHZ. 2021-06-23T04:27:52.16 0.1 positive manual P 99 47.2194 50 0.4 87
IV.PF6.EHZ. 2021-06-23T04:27:52.40 0.3 undecidable manual S 70 26.751 107 -0.03 73
IV.LNSS.HHZ. 2021-06-23T04:27:52.21 0.3 undecidable manual P 166 51.6039 50 -0.22 67
IV.CSP1.EHZ. 2021-06-23T04:27:52.27 0.3 undecidable manual S 81 26.3514 107 -0.01 74
IV.ATCC.EHZ. 2021-06-23T04:27:52.00 0.3 undecidable manual S 306 24.5532 109 0.31 69
IV.ATFO.HHZ. 2021-06-23T04:27:51.05 0.3 undecidable manual P 324 42.9237 50 -0.04 71
IV.CING.HHZ. 2021-06-23T04:27:51.03 0.3 undecidable manual P 35 43.623 50 -0.17 69
IV.ARVD.HHZ. 2021-06-23T04:27:51.77 0.6 undecidable manual P 5 49.5171 50 -0.33 44
IV.GUMA.HHZ. 2021-06-23T04:27:50.23 0.1 positive manual P 88 36.5412 50 0.12 94
IV.MMO1.EHZ. 2021-06-23T04:27:50.35 0.1 negative manual P 115 39.8268 50 -0.26 91
IV.GAVE.EHZ. 2021-06-23T04:27:50.48 0.3 undecidable manual P 179 40.1265 50 -0.18 69
IV.MOMA.HHZ. 2021-06-23T04:27:50.04 0.3 undecidable manual P 223 37.7289 50 -0.24 69
IV.SSFR.HHZ. 2021-06-23T04:27:50.83 0.3 undecidable manual P 349 43.2234 50 -0.3 67
IV.MURB.HHZ. 2021-06-23T04:27:50.14 0.1 undecidable manual P 309 37.2294 50 -0.07 95
IV.FDMO.HHZ. 2021-06-23T04:27:49.18 0.3 undecidable manual S 97 16.5723 117 0.05 74
IV.FEMA.HNZ. 2021-06-23T04:27:49.58 0.3 undecidable manual S 127 16.872 116 0.36 70
IV.EL6.EHZ. 2021-06-23T04:27:49.69 0.1 positive manual P 30 35.2425 50 -0.22 93
IV.ASSB.HHZ. 2021-06-23T04:27:49.91 0.3 undecidable manual S 266 18.2706 114 0.23 71
IV.CSP1.EHZ. 2021-06-23T04:27:48.22 0.3 undecidable manual P 81 26.3514 107 -0.01 74
IV.FOSV.EHZ. 2021-06-23T04:27:48.44 0.3 undecidable manual P 340 28.5492 106 -0.21 70
IV.MDAR.HNZ. 2021-06-23T04:27:48.08 0.6 undecidable manual P 54 25.9518 108 -0.08 48
IV.PF6.EHZ. 2021-06-23T04:27:48.21 0.3 undecidable manual P 70 26.751 107 -0.11 72
IV.FIU1.HNZ. 2021-06-23T04:27:48.62 0.3 undecidable manual S 14 15.3735 118 -0.15 73
IV.MML1.HNZ. 2021-06-23T04:27:47.03 0.3 undecidable manual S 47 9.6792 131 -0.09 74
IV.ATCC.EHZ. 2021-06-23T04:27:47.95 0.1 positive manual P 306 24.5532 109 0.06 97
IV.SEF1.HNZ. 2021-06-23T04:27:47.58 0.3 undecidable manual S 27 11.4774 126 -0.04 75
IT.MTCL.HGZ. 2021-06-23T04:27:47.66 0.3 undecidable manual S 125 11.4774 126 0.05 75
IV.ASSB.HHZ. 2021-06-23T04:27:46.89 0.1 positive manual P 266 18.2706 114 0.16 97
IV.FIU1.HNZ. 2021-06-23T04:27:46.28 0.3 undecidable manual P 14 15.3735 118 0.08 74
IV.FDMO.HHZ. 2021-06-23T04:27:46.53 0.1 negative manual P 97 16.5723 117 0.12 98
IV.FEMA.HNZ. 2021-06-23T04:27:46.64 0.3 undecidable manual P 127 16.872 116 0.17 72
IT.MTCL.HGZ. 2021-06-23T04:27:45.59 0.3 undecidable manual P 125 11.4774 126 0.05 75
IV.MML1.HNZ. 2021-06-23T04:27:45.32 0.1 positive manual P 47 9.6792 131 0.07 100
IV.SEF1.HNZ. 2021-06-23T04:27:45.57 0.3 undecidable manual P 27 11.4774 126 0.03 75
IV.CESI.HHZ. 2021-06-23T04:27:45.72 0.3 undecidable manual S 163 5.6943 146 -0.47 69
IV.CESI.HHZ. 2021-06-23T04:27:44.62 0.1 positive manual P 163 5.6943 146 -0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:2.0 0.0018277954999999999 1.7792 AML other m 2021-06-23T04:27:46.96
IV.CESI.HNE. ML:2.0 0.0017235389999999998 1.8112 AML other m 2021-06-23T04:27:46.98
IV.CESI.HHN. ML:2.0 0.0019912800000000002 0.1792 AML other m 2021-06-23T04:27:46.75
IV.CESI.HNN. ML:2.0 0.0018592275 0.1824 AML other m 2021-06-23T04:27:46.85
IV.SEF1.HNE. ML:2.0 0.0012698564 0.1888 AML other m 2021-06-23T04:27:48.08
IV.FDMO.HHE. ML:1.8 0.0005982404 0.1792 AML other m 2021-06-23T04:27:49.40
IV.SEF1.HNN. ML:2.1 0.00146225225 0.2016 AML other m 2021-06-23T04:27:49.44
IV.FDMO.HHN. ML:1.8 0.0006065 0.18 AML other m 2021-06-23T04:27:49.51
IV.ASSB.HHE. ML:1.7 0.0004115 0.42 AML other m 2021-06-23T04:27:50.62
IV.ASSB.HHN. ML:1.8 0.00046787060000000005 0.1216 AML other m 2021-06-23T04:27:51.12
IV.CSP1.EHN. ML:1.9 0.0005294757 0.2176 AML other m 2021-06-23T04:27:52.65
IV.CSP1.EHE. ML:2.2 0.0009025 0.48 AML other m 2021-06-23T04:27:52.68
IV.ATCC.EHE. ML:1.4 0.00016575935 0.24 AML other m 2021-06-23T04:27:53.60
IV.ATCC.EHN. ML:1.4 0.000173094415 0.16 AML other m 2021-06-23T04:27:54.05
IV.FOSV.EHE. ML:1.3 0.00010112400499999998 0.2784 AML other m 2021-06-23T04:27:55.22
IV.EL6.EHE. ML:2.4 0.0011944999999999998 0.24 AML other m 2021-06-23T04:27:55.68
IV.FOSV.EHN. ML:1.5 0.000169 0.26 AML other m 2021-06-23T04:27:55.87
IV.EL6.EHN. ML:2.2 0.0006414999999999999 1.7 AML other m 2021-06-23T04:27:55.99
IV.GUMA.HHE. ML:2.2 0.0006885 0.24 AML other m 2021-06-23T04:27:56.46
IV.GAVE.EHN. ML:1.8 0.0002125544 0.1216 AML other m 2021-06-23T04:27:56.98
IV.MURB.HNN. ML:1.8 0.0002615595 0.1792 AML other m 2021-06-23T04:27:57.21
IV.MURB.HHN. ML:1.9 0.000323 0.2 AML other m 2021-06-23T04:27:57.30
IV.CING.HHN. ML:2.0 0.00030574535 0.1376 AML other m 2021-06-23T04:27:57.90
IV.CING.HHE. ML:1.9 0.0002275 1.76 AML other m 2021-06-23T04:27:57.01
IV.SSFR.HHE. ML:1.9 0.000256 0.2 AML other m 2021-06-23T04:27:57.87
IV.MOMA.HNN. ML:1.4 0.00008414976500000002 0.2624 AML other m 2021-06-23T04:27:58.00
IV.MOMA.HHN. ML:1.4 0.00008999999999999999 1.44 AML other m 2021-06-23T04:27:58.01
IV.ATFO.HHN. ML:1.5 0.0001044 0.12 AML other m 2021-06-23T04:27:58.15
IV.GUMA.HNE. ML:2.0 0.00043138350000000003 0.2976 AML other m 2021-06-23T04:27:58.42
IV.GUMA.HHN. ML:2.0 0.00039252935 0.3008 AML other m 2021-06-23T04:27:58.43
IV.ATFO.HHE. ML:1.5 0.000100223665 0.1184 AML other m 2021-06-23T04:27:58.26
IV.MOMA.HHE. ML:1.3 0.000082064885 0.1216 AML other m 2021-06-23T04:27:58.72
IV.SSFR.HNE. ML:1.6 0.00013653187 0.08 AML other m 2021-06-23T04:27:58.83
IV.MURB.HHE. ML:1.9 0.00033650000000000005 0.24 AML other m 2021-06-23T04:27:58.74
IV.MURB.HNE. ML:1.9 0.00033464745 0.2304 AML other m 2021-06-23T04:27:58.75
IV.GAVE.HNE. ML:1.8 0.00023116589999999998 1.8304 AML other m 2021-06-23T04:27:59.98
IV.GAVE.EHE. ML:1.8 0.00021183825 1.8208 AML other m 2021-06-23T04:27:59.07
IV.MOMA.HNE. ML:1.3 0.000080751995 0.1984 AML other m 2021-06-23T04:27:59.45
IV.LNSS.HHE. ML:2.0 0.00026900000000000003 0.12 AML other m 2021-06-23T04:27:59.82
IV.LNSS.HNE. ML:2.0 0.00023125115000000002 0.128 AML other m 2021-06-23T04:27:59.88
IV.LNSS.HHN. ML:2.0 0.000237 1.78 AML other m 2021-06-23T04:27:59.07
IV.LNSS.HNN. ML:1.9 0.00021164385 1.7888 AML other m 2021-06-23T04:27:59.96
IV.ARVD.HHE. ML:1.2 0.00004596483 0.1792 AML other m 2021-06-23T04:28:00.26
IV.SSFR.HHN. ML:2.0 0.00029000000000000006 0.26 AML other m 2021-06-23T04:28:00.30
IV.FRON.EHN. ML:1.5 0.00006999249000000001 0.08 AML other m 2021-06-23T04:28:01.24
IV.ARVD.HHN. ML:1.0 0.00003075511 0.1792 AML other m 2021-06-23T04:28:02.34
IV.FRON.EHE. ML:1.2 0.00003547484 0.1792 AML other m 2021-06-23T04:28:02.60
IV.MF5.EHE. ML:1.4 0.000065668195 1.6 AML other m 2021-06-23T04:28:03.82
IV.MF5.EHN. ML:1.5 0.000093970305 0.4 AML other m 2021-06-23T04:28:03.82
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