Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 20-05-2021 and time 13:18:49 (Italy) in region 5 km NW Muccia (MC)

A magnitude ML 1.7 earthquake occured in region: 5 km NW Muccia (MC), on

  • 20-05-2021 11:18:49 (UTC)
  • 20-05-2021 13:18:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1180, 13.0030 at 13 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
Muccia MC 5 915 915
Sefro MC 5 422 1337
Camerino MC 6 6974 8311
Serravalle di Chienti MC 7 1070 9381
Pioraco MC 7 1134 10515
Pieve Torina MC 9 1458 11973
Pievebovigliana MC 9 866 12839
Fiuminata MC 10 1402 14241
Castelraimondo MC 11 4587 18828
Fiordimonte MC 11 202 19030
Monte Cavallo MC 14 145 19175
Gagliole MC 15 620 19795
Fiastra MC 15 559 20354
Matelica MC 16 9981 30335
Esanatoglia MC 16 2034 32369
Serrapetrona MC 17 966 33335
Acquacanina MC 17 121 33456
Nocera Umbra PG 17 5839 39295
Caldarola MC 18 1823 41118
San Severino Marche MC 19 12726 53844
Belforte del Chienti MC 20 1886 55730

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NE of Foligno (57155 inhabitants)
50 Km E of Perugia (166134 inhabitants)
68 Km NE of Terni (111501 inhabitants)
70 Km SW of Ancona (100861 inhabitants)
77 Km NW of Teramo (54892 inhabitants)
81 Km S of Fano (60888 inhabitants)
88 Km S of Pesaro (94582 inhabitants)
91 Km NW of L'Aquila (69753 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
Bulletin
Rev1000 		ML 1.7 2021-05-20
11:18:49		 43.1183 13.0032 13 2021-12-29
11:11:59		 Bollettino Sismico Italiano INGV 90299661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-20 11:18:49 ± 0.04
Latitude 43.1183 ± 0.0018
Longitude 13.0032 ± 0.0025
Depth (km) 13 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 90299661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 249
Semi-minor axis of confidence ellipse (meter) 43
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 52
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 35
Number of associated phases, regardless of their use for origin computation 50
Number of defining phases 50
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.02338
Epicentral distance of station farthest from the epicenter (degree) 0.58006
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 29
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 90299661
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-20 17:10:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2021-05-20T11:19:08.88 0.6 undecidable manual S 321 59.7957 92 0.9 34
IV.GAVE.EHZ. 2021-05-20T11:19:05.16 0.6 undecidable manual S 191 48.1185 93 0.29 43
IV.SSFR.HHZ. 2021-05-20T11:19:02.91 0.6 undecidable manual S 333 39.5271 94 0.32 44
IV.MMO1.EHZ. 2021-05-20T11:19:01.66 0.6 undecidable manual S 133 35.742 95 0.08 47
IV.MPAG.EHZ. 2021-05-20T11:19:00.34 0.3 undecidable manual P 341 59.9955 92 0.11 67
IV.GUMA.HHZ. 2021-05-20T11:19:00.08 0.6 undecidable manual S 103 27.5502 98 0.66 41
IV.NRCA.HHZ. 2021-05-20T11:19:00.63 0.6 undecidable manual S 164 32.8449 96 -0.18 46
IV.CING.HHZ. 2021-05-20T11:19:00.88 0.6 undecidable manual S 28 32.4453 96 0.17 47
IV.NARO.HHZ. 2021-05-20T11:19:00.78 0.3 undecidable manual P 328 64.3911 92 -0.12 66
IV.PIEI.HHZ. 2021-05-20T11:19:00.06 0.3 undecidable manual P 321 59.7957 92 -0.13 67
IV.ATVO.HHZ. 2021-05-20T11:18:59.65 0.3 undecidable manual P 301 56.3991 93 -0.03 69
IV.MC2.EHZ. 2021-05-20T11:18:59.49 0.6 undecidable manual S 147 27.4503 98 0.11 47
IV.FOSV.EHZ. 2021-05-20T11:18:59.50 0.3 undecidable manual S 315 27.6501 98 0.06 71
IV.ASSB.HHZ. 2021-05-20T11:18:59.76 0.6 undecidable manual S 253 29.1486 97 -0.07 48
IV.EL6.EHZ. 2021-05-20T11:18:58.74 0.6 undecidable manual S 19 24.753 99 0.08 48
IV.GAVE.EHZ. 2021-05-20T11:18:58.48 0.3 undecidable manual P 191 48.1185 93 0.08 68
IV.MOMA.HHZ. 2021-05-20T11:18:58.74 0.3 undecidable manual P 225 49.5171 93 0.12 67
IV.FRON.EHZ. 2021-05-20T11:18:58.47 0.1 negative manual P 333 49.617 93 -0.17 90
IV.MF5.EHZ. 2021-05-20T11:18:57.67 0.3 undecidable manual P 111 39.7269 94 0.56 62
IV.ARVD.HHZ. 2021-05-20T11:18:57.42 0.3 undecidable manual P 353 42.4242 94 -0.1 69
IV.MMO1.EHZ. 2021-05-20T11:18:56.41 0.3 undecidable manual P 133 35.742 95 -0.09 70
IV.CESI.HNZ. 2021-05-20T11:18:56.25 0.3 undecidable manual S 212 14.874 115 0.11 72
IV.SSFR.HHZ. 2021-05-20T11:18:56.98 0.1 negative manual P 333 39.5271 94 -0.1 93
IV.CSP1.EHZ. 2021-05-20T11:18:56.70 0.6 undecidable manual S 100 16.5723 111 0.14 48
IV.MURB.HHZ. 2021-05-20T11:18:56.58 0.6 undecidable manual P 293 41.9247 94 -0.87 37
IV.FEMA.HNZ. 2021-05-20T11:18:56.85 0.6 undecidable manual S 168 17.7711 108 0.01 49
IV.PF6.EHN. 2021-05-20T11:18:56.13 0.6 undecidable manual S 82 15.6732 113 -0.19 47
IV.FOSV.EHZ. 2021-05-20T11:18:55.22 0.1 negative manual P 315 27.6501 98 -0.05 96
IV.CING.HHZ. 2021-05-20T11:18:55.95 0.1 negative manual P 28 32.4453 96 -0.05 94
IV.MDAR.HNZ. 2021-05-20T11:18:55.87 0.3 undecidable manual S 54 13.9749 118 -0.05 72
IV.ASSB.HHZ. 2021-05-20T11:18:55.31 0.1 undecidable manual P 253 29.1486 97 -0.18 94
IV.GUMA.HHZ. 2021-05-20T11:18:55.49 0.3 undecidable manual P 103 27.5502 98 0.24 69
IV.FDMO.HHZ. 2021-05-20T11:18:55.24 0.3 undecidable manual S 143 11.3775 127 -0.09 73
IV.MC2.EHZ. 2021-05-20T11:18:55.14 0.1 undecidable manual P 147 27.4503 98 -0.09 95
IV.NRCA.HHZ. 2021-05-20T11:18:55.81 0.1 undecidable manual P 164 32.8449 96 -0.25 91
IT.MTCL.HGZ. 2021-05-20T11:18:55.68 0.6 undecidable manual S 181 13.7751 118 -0.2 48
IV.MML1.HNE. 2021-05-20T11:18:54.13 0.3 undecidable manual S 258 2.5974 166 0.12 75
IV.SEF1.HNZ. 2021-05-20T11:18:54.28 0.3 undecidable manual S 305 5.4945 151 -0.01 74
IV.PIO1.HNZ. 2021-05-20T11:18:54.36 0.6 undecidable manual S 347 6.7932 145 -0.12 48
IV.EL6.EHZ. 2021-05-20T11:18:54.78 0.1 negative manual P 19 24.753 99 -0.03 96
IV.CSP1.EHZ. 2021-05-20T11:18:53.63 0.1 positive manual P 100 16.5723 111 0.03 98
IT.MTCL.HGZ. 2021-05-20T11:18:53.14 0.1 undecidable manual P 181 13.7751 118 -0.07 98
IV.FEMA.HNZ. 2021-05-20T11:18:53.75 0.1 undecidable manual P 168 17.7711 108 -0.01 98
IV.PF6.EHN. 2021-05-20T11:18:53.39 0.1 undecidable manual P 82 15.6732 113 -0.07 97
IV.MDAR.HNZ. 2021-05-20T11:18:53.24 0.3 undecidable manual P 54 13.9749 118 0.01 74
IV.CESI.HNZ. 2021-05-20T11:18:53.40 0.1 undecidable manual P 212 14.874 115 0.04 98
IV.FDMO.HHZ. 2021-05-20T11:18:52.85 0.1 undecidable manual P 143 11.3775 127 -0.04 98
IV.MML1.HNE. 2021-05-20T11:18:52.29 0.1 undecidable manual P 258 2.5974 166 0.16 98
IV.SEF1.HNZ. 2021-05-20T11:18:52.33 0.1 undecidable manual P 305 5.4945 151 0.04 100
IV.PIO1.HNZ. 2021-05-20T11:18:52.42 0.1 undecidable manual P 347 6.7932 145 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SEF1.HNE. ML:2.4 0.0030549999999999996 0.34 AML other m 2021-05-20T11:18:54.41
IV.SEF1.HNN. ML:2.3 0.002535 0.36 AML other m 2021-05-20T11:18:54.46
IV.FDMO.HHE. ML:1.7 0.0004755 0.48 AML other m 2021-05-20T11:18:55.48
IV.FDMO.HHN. ML:1.4 0.0002765 1 AML other m 2021-05-20T11:18:55.98
IV.CESI.HHN. ML:1.8 0.000641 0.26 AML other m 2021-05-20T11:18:56.50
IV.CESI.HHE. ML:1.8 0.000544 0.4 AML other m 2021-05-20T11:18:56.33
IV.CSP1.EHE. ML:1.9 0.0006185 0.32 AML other m 2021-05-20T11:18:56.96
IV.CSP1.EHN. ML:2.0 0.000708 1.04 AML other m 2021-05-20T11:18:57.39
IV.EL6.EHE. ML:1.9 0.00047400000000000003 0.32 AML other m 2021-05-20T11:18:59.01
IV.EL6.EHN. ML:1.8 0.00034899999999999997 0.36 AML other m 2021-05-20T11:18:59.68
IV.FOSV.EHE. ML:1.7 0.00027 0.16 AML other m 2021-05-20T11:18:59.60
IV.FOSV.EHN. ML:1.7 0.000249 0.22 AML other m 2021-05-20T11:18:59.86
IV.ASSB.HHN. ML:1.5 0.0001615 0.16 AML other m 2021-05-20T11:19:00.17
IV.ASSB.HHE. ML:1.6 0.00018449999999999999 0.14 AML other m 2021-05-20T11:19:00.14
IV.GUMA.HHE. ML:1.7 0.000237 0.32 AML other m 2021-05-20T11:19:00.24
IV.GUMA.HHN. ML:1.5 0.0001735 0.3 AML other m 2021-05-20T11:19:00.35
IV.CING.HHN. ML:1.4 0.0001135 0.18 AML other m 2021-05-20T11:19:01.11
IV.CING.HHE. ML:1.4 0.00009595 0.58 AML other m 2021-05-20T11:19:01.61
IV.NRCA.HHE. ML:1.9 0.000347 0.1 AML other m 2021-05-20T11:19:01.65
IV.NRCA.HHN. ML:1.9 0.0003255 1.54 AML other m 2021-05-20T11:19:01.81
IV.SSFR.HHN. ML:2.0 0.0003725 0.14 AML other m 2021-05-20T11:19:03.59
IV.SSFR.HHE. ML:1.8 0.000213 0.2 AML other m 2021-05-20T11:19:03.74
IV.ARVD.HHN. ML:1.2 0.00004865 0.56 AML other m 2021-05-20T11:19:04.02
IV.SSFR.HNE. ML:2.0 0.0003265 1.06 AML other m 2021-05-20T11:19:04.21
IV.SSFR.HNN. ML:2.1 0.0004055 0.68 AML other m 2021-05-20T11:19:04.26
IV.ARVD.HHE. ML:1.4 0.00006825 0.92 AML other m 2021-05-20T11:19:04.32
IV.MURB.HHN. ML:1.6 0.00011649999999999999 0.26 AML other m 2021-05-20T11:19:04.36
IV.GAVE.EHE. ML:1.8 0.00017749999999999998 0.68 AML other m 2021-05-20T11:19:05.26
IV.MURB.HHE. ML:1.6 0.0001255 0.96 AML other m 2021-05-20T11:19:06.68
IV.GAVE.EHN. ML:1.7 0.0001291 0.44 AML other m 2021-05-20T11:19:06.68
IV.FRON.EHN. ML:1.6 0.000105 0.66 AML other m 2021-05-20T11:19:06.59
IV.MOMA.HHN. ML:1.7 0.000118 0.24 AML other m 2021-05-20T11:19:06.84
IV.MOMA.HHE. ML:1.7 0.0001385 1.82 AML other m 2021-05-20T11:19:06.07
IV.FRON.EHE. ML:1.4 0.00006544999999999999 1.42 AML other m 2021-05-20T11:19:07.97
IV.MPAG.EHE. ML:1.4 0.000054099999999999994 1.62 AML other m 2021-05-20T11:19:09.86
IV.MPAG.EHN. ML:1.3 0.00003835 1.28 AML other m 2021-05-20T11:19:10.78
IV.PIEI.HHE. ML:1.4 0.00004885 0.84 AML other m 2021-05-20T11:19:10.74
IV.PIEI.HHN. ML:1.2 0.000031 1.32 AML other m 2021-05-20T11:19:11.18
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