Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 16-01-2021 and time 01:31:28 (Italy) in region 5 km SE Sefro (MC)

A magnitude ML 1.6 earthquake occured in region: 5 km SE Sefro (MC), on

  • 16-01-2021 00:31:28 (UTC)
  • 16-01-2021 01:31:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1140, 12.9920 at 11 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Sefro MC 5 422 422
Muccia MC 6 915 1337
Serravalle di Chienti MC 6 1070 2407
Camerino MC 7 6974 9381
Pioraco MC 7 1134 10515
Pieve Torina MC 9 1458 11973
Pievebovigliana MC 9 866 12839
Fiuminata MC 10 1402 14241
Fiordimonte MC 12 202 14443
Castelraimondo MC 12 4587 19030
Monte Cavallo MC 13 145 19175
Gagliole MC 15 620 19795
Esanatoglia MC 16 2034 21829
Fiastra MC 16 559 22388
Matelica MC 16 9981 32369
Nocera Umbra PG 16 5839 38208
Acquacanina MC 18 121 38329
Serrapetrona MC 18 966 39295
Caldarola MC 19 1823 41118
San Severino Marche MC 20 12726 53844

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NE of Foligno (57155 inhabitants)
49 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)
89 Km S of Pesaro (94582 inhabitants)
91 Km NW of L'Aquila (69753 inhabitants)
98 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 1.6 2021-01-16
00:31:28		 43.1138 12.9925 11 2021-07-12
16:54:57		 Bollettino Sismico Italiano INGV 86806911
Reviewed
Rev100 		ML 1.7 2021-01-16
00:31:28		 43.1138 12.9893 11 2021-01-16
00:36:29		 Sala Sismica INGV-Roma 86286711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-16 00:31:28 ± 0.04
Latitude 43.1138 ± 0.0018
Longitude 12.9925 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86806911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 310
Semi-minor axis of confidence ellipse (meter) 169
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 240
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 43
Number of associated phases, regardless of their use for origin computation 59
Number of defining phases 58
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) 0.58006
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 30
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 28
Type of magnitude ML
Reference to an origin 86806911
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-03 12:33:53

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 23
Type of magnitude ML
Reference to an origin 86286711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-16 00:36:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RIBO.EHZ.01 2021-01-16T00:31:53.34 3.0 undecidable manual Pn 0.19 0
IV.NARO.HHZ. 2021-01-16T00:31:48.34 0.3 undecidable manual S 329 64.3911 50 0.49 62
IV.LNSS.HHZ. 2021-01-16T00:31:46.13 1.0 undecidable manual S 176 56.7987 50 0.29 22
IV.PIEI.HHZ. 2021-01-16T00:31:46.97 0.3 undecidable manual S 322 59.5959 50 0.39 64
IV.FRON.EHZ. 2021-01-16T00:31:44.13 0.3 undecidable manual S 334 49.7169 50 0.19 67
IV.ARVD.HHZ. 2021-01-16T00:31:42.30 0.3 undecidable manual S 355 42.8238 50 0.2 68
IV.MF5.EHZ. 2021-01-16T00:31:42.57 0.3 undecidable manual S 110 40.3263 50 1.13 49
IV.ATSC.EHE. 2021-01-16T00:31:41.94 0.3 undecidable manual S 324 42.3243 50 -0.04 71
IV.SSFR.HHZ. 2021-01-16T00:31:41.40 0.1 undecidable manual S 335 39.627 50 0.16 92
IV.MMO1.EHZ. 2021-01-16T00:31:40.03 0.1 undecidable manual S 131 36.0417 50 -0.27 91
IV.SAP2.EHE. 2021-01-16T00:31:40.48 0.6 undecidable manual S 93 32.9448 50 1.01 35
IV.PIEI.HHZ. 2021-01-16T00:31:39.00 0.6 undecidable manual P 322 59.5959 50 0.21 44
IV.NRCA.HHZ. 2021-01-16T00:31:39.09 0.3 undecidable manual S 162 32.6451 50 -0.29 68
IV.NARO.HHZ. 2021-01-16T00:31:39.33 0.1 undecidable manual P 329 64.3911 50 -0.2 88
IV.CING.HNZ. 2021-01-16T00:31:39.50 0.1 undecidable manual S 29 33.3444 50 -0.07 95
IV.MC2.EHZ. 2021-01-16T00:31:38.08 0.3 undecidable manual S 145 27.5502 50 0.06 72
IV.ASSB.HHZ. 2021-01-16T00:31:38.08 0.3 undecidable manual S 254 28.1496 50 -0.11 71
IV.LNSS.HHZ. 2021-01-16T00:31:38.05 0.3 undecidable manual P 176 56.7987 50 -0.31 65
IV.GUMA.HHZ. 2021-01-16T00:31:38.79 0.3 undecidable manual S 101 28.3494 50 0.56 64
IV.FRON.EHZ. 2021-01-16T00:31:37.03 0.3 undecidable manual P 334 49.7169 50 -0.24 67
IV.EL6.EHZ. 2021-01-16T00:31:37.40 0.3 undecidable manual S 20 25.4523 50 -0.07 72
IV.MNTT.EHZ. 2021-01-16T00:31:37.53 1.0 undecidable manual P 97 49.2174 50 0.34 22
IV.FOSV.EHZ. 2021-01-16T00:31:37.87 0.1 undecidable manual S 317 27.4503 50 -0.12 95
IV.MF5.EHZ. 2021-01-16T00:31:36.34 0.3 undecidable manual P 110 40.3263 50 0.51 64
IV.ARVD.HHZ. 2021-01-16T00:31:35.91 0.1 undecidable manual P 355 42.8238 50 -0.29 89
IV.FEMA.HNE. 2021-01-16T00:31:35.36 0.1 undecidable manual S 165 17.4714 122 0.07 98
IV.CSP1.EHZ. 2021-01-16T00:31:35.29 0.3 undecidable manual S 98 17.3715 122 0.03 74
IV.ATSC.EHE. 2021-01-16T00:31:35.99 0.3 undecidable manual P 324 42.3243 50 -0.15 69
IV.SSFR.HHZ. 2021-01-16T00:31:35.44 0.1 undecidable manual P 335 39.627 50 -0.27 90
IV.MURB.HHE. 2021-01-16T00:31:35.97 1.0 undecidable manual P 294 41.3253 50 0 24
IV.GUMA.HHZ. 2021-01-16T00:31:34.09 0.1 undecidable manual P 101 28.3494 50 0.12 95
IV.MDAR.HNZ. 2021-01-16T00:31:34.40 0.3 undecidable manual S 54 14.9739 126 -0.17 72
IV.NRCA.HHZ. 2021-01-16T00:31:34.25 0.1 undecidable manual P 162 32.6451 50 -0.39 89
IV.CING.HNZ. 2021-01-16T00:31:34.50 0.1 undecidable manual P 29 33.3444 50 -0.25 92
IV.SNTG.HHE. 2021-01-16T00:31:34.72 0.1 undecidable manual S 345 16.1727 124 -0.2 95
IV.MMO1.EHZ. 2021-01-16T00:31:34.86 0.1 undecidable manual P 131 36.0417 50 -0.31 90
IT.MTCL.HGZ. 2021-01-16T00:31:34.07 0.1 undecidable manual S 178 13.2756 129 -0.05 99
IV.PF6.EHN. 2021-01-16T00:31:34.72 0.1 undecidable manual S 81 16.5723 123 -0.3 93
IV.SAP2.EHE. 2021-01-16T00:31:34.78 1.0 undecidable manual P 93 32.9448 50 0.09 24
IV.CESI.HHZ. 2021-01-16T00:31:34.56 0.1 undecidable manual S 211 14.0748 128 0.25 95
IV.EL6.EHZ. 2021-01-16T00:31:33.30 0.1 undecidable manual P 20 25.4523 50 -0.23 93
IV.FOSV.EHZ. 2021-01-16T00:31:33.68 0.1 undecidable manual P 317 27.4503 50 -0.16 94
IV.FDMO.HHZ. 2021-01-16T00:31:33.59 0.1 undecidable manual S 138 11.4774 133 -0.05 99
IV.MC2.EHZ. 2021-01-16T00:31:33.70 0.1 undecidable manual P 145 27.5502 50 -0.15 94
IV.FIU1.HNZ. 2021-01-16T00:31:33.30 0.1 undecidable manual S 329 9.6792 138 0.11 98
IV.ASSB.HHZ. 2021-01-16T00:31:33.99 0.6 undecidable manual P 254 28.1496 50 0.04 48
IV.SEF1.HNN. 2021-01-16T00:31:32.59 0.1 undecidable manual S 315 5.1948 155 0.27 96
IV.FEMA.HNE. 2021-01-16T00:31:32.22 0.1 undecidable manual P 165 17.4714 122 -0.05 98
IV.CSP1.EHZ. 2021-01-16T00:31:32.24 0.3 undecidable manual P 98 17.3715 122 -0.02 74
IV.PIO1.HNZ. 2021-01-16T00:31:32.80 0.3 undecidable manual S 354 7.1928 147 0.14 74
IT.MTCL.HGZ. 2021-01-16T00:31:31.62 0.1 undecidable manual P 178 13.2756 129 0.02 99
IV.PF6.EHN. 2021-01-16T00:31:31.95 0.1 undecidable manual P 81 16.5723 123 -0.17 96
IV.FIU1.HNZ. 2021-01-16T00:31:31.18 0.1 undecidable manual P 329 9.6792 138 0.12 98
IV.CESI.HHZ. 2021-01-16T00:31:31.84 0.1 undecidable manual P 211 14.0748 128 0.13 97
IV.MDAR.HNZ. 2021-01-16T00:31:31.84 0.1 undecidable manual P 54 14.9739 126 -0.02 99
IV.FDMO.HHZ. 2021-01-16T00:31:31.32 0.1 undecidable manual P 138 11.4774 133 0 100
IV.SNTG.HHE. 2021-01-16T00:31:31.95 0.1 undecidable manual P 345 16.1727 124 -0.11 97
IV.PIO1.HNZ. 2021-01-16T00:31:30.89 0.3 undecidable manual P 354 7.1928 147 0.13 74
IV.SEF1.HNN. 2021-01-16T00:31:30.75 0.1 undecidable manual P 315 5.1948 155 0.19 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1.5 0.000377 0.14 AML other m 2021-01-16T00:31:33.73
IV.FDMO.HHN. ML:1.6 0.000481 0.2 AML other m 2021-01-16T00:31:33.84
IV.CESI.HHN. ML:2.0 0.0009395 0.1 AML other m 2021-01-16T00:31:34.62
IV.CESI.HNN. ML:1.9 0.0008495 0.1 AML other m 2021-01-16T00:31:34.62
IV.CESI.HHE. ML:2.0 0.0010004999999999999 0.44 AML other m 2021-01-16T00:31:34.65
IV.CESI.HNE. ML:2.0 0.00095512935 0.1 AML other m 2021-01-16T00:31:34.65
IV.MDAR.HNE. ML:1.4 0.00023786950000000002 0.08 AML other m 2021-01-16T00:31:34.62
IV.MDAR.HNN. ML:1.5 0.00030296095 0.16 AML other m 2021-01-16T00:31:34.44
IV.CSP1.EHN. ML:1.8 0.0004713081 0.12 AML other m 2021-01-16T00:31:35.37
IV.CSP1.EHE. ML:1.8 0.0005625 0.16 AML other m 2021-01-16T00:31:35.46
IV.EL6.EHE. ML:1.7 0.00026700000000000004 0.24 AML other m 2021-01-16T00:31:37.69
IV.EL6.EHN. ML:1.7 0.00029299999999999997 1.84 AML other m 2021-01-16T00:31:38.03
IV.FOSV.EHN. ML:1.6 0.000196039 0.14 AML other m 2021-01-16T00:31:38.20
IV.FOSV.EHE. ML:1.4 0.000145 0.28 AML other m 2021-01-16T00:31:38.07
IV.ASSB.HHE. ML:1.5 0.00016549999999999998 0.36 AML other m 2021-01-16T00:31:38.64
IV.ASSB.HHN. ML:1.6 0.0002015715 0.14 AML other m 2021-01-16T00:31:38.63
IV.NRCA.HHN. ML:1.5 0.00014906275000000003 0.12 AML other m 2021-01-16T00:31:39.52
IV.GUMA.HHN. ML:1.3 0.00009520798 0.2 AML other m 2021-01-16T00:31:39.02
IV.NRCA.HHE. ML:1.5 0.0001374251 0.16 AML other m 2021-01-16T00:31:41.50
IV.SSFR.HHN. ML:1.8 0.00020786870000000002 0.22 AML other m 2021-01-16T00:31:41.61
IV.SSFR.HHE. ML:1.8 0.0001945 0.16 AML other m 2021-01-16T00:31:42.31
IV.NRCA.HNE. ML:1.5 0.000142930375 0.17 AML other m 2021-01-16T00:31:41.50
IV.SSFR.HNE. ML:1.8 0.00022168735000000002 0.21 AML other m 2021-01-16T00:31:41.89
IV.SSFR.HNN. ML:1.9 0.00026005770000000003 0.23 AML other m 2021-01-16T00:31:41.62
IV.ARVD.HHE. ML:1.1 0.000037619635 0.1 AML other m 2021-01-16T00:31:42.73
IV.FRON.EHN. ML:1.2 0.000041099485 0.08 AML other m 2021-01-16T00:31:46.30
IV.MNTT.EHE. ML:1.8 0.000150622 0.16 AML other m 2021-01-16T00:31:48.50
IV.LNSS.HHN. ML:1.1 0.0000285963355 0.18 AML other m 2021-01-16T00:31:47.13
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