Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 16-01-2021 and time 05:27:35 (UTC) in region 4 km N Ussita (MC)

A magnitude ML 1.6 earthquake occured in region: 4 km N Ussita (MC), on

  • 16-01-2021 05:27:35 (UTC)
  • 16-01-2021 06:27:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9780, 13.1360 at 10 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
Ussita MC 4 444 444
Visso MC 6 1107 1551
Acquacanina MC 7 121 1672
Fiastra MC 7 559 2231
Fiordimonte MC 8 202 2433
Bolognola MC 8 142 2575
Castelsantangelo sul Nera MC 9 281 2856
Pieve Torina MC 10 1458 4314
Pievebovigliana MC 10 866 5180
Monte Cavallo MC 11 145 5325
Preci PG 14 724 6049
Muccia MC 14 915 6964
Sarnano MC 15 3264 10228
Montefortino FM 17 1178 11406
Montemonaco AP 18 604 12010
Cessapalombo MC 18 512 12522
Amandola FM 18 3629 16151
Serravalle di Chienti MC 18 1070 17221
Camerino MC 18 6974 24195
Gualdo MC 19 815 25010
Caldarola MC 19 1823 26833
Sellano PG 20 1079 27912

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
58 Km NW of Teramo (54892 inhabitants)
61 Km NE of Terni (111501 inhabitants)
62 Km E of Perugia (166134 inhabitants)
73 Km NW of L'Aquila (69753 inhabitants)
78 Km SW of Ancona (100861 inhabitants)
97 Km S of Fano (60888 inhabitants)
98 Km NW of Montesilvano (53738 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
05:27:35		 42.978 13.1363 10 2021-07-12
16:54:57		 Bollettino Sismico Italiano INGV 86912351
Reviewed
Rev100 		ML 1.8 2021-01-16
05:27:35		 42.9703 13.1313 11 2021-01-16
05:35:43		 Sala Sismica INGV-Roma 86291201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-16 05:27:35 ± 0.05
Latitude 42.9780 ± 0.0027
Longitude 13.1363 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86912351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 320
Semi-minor axis of confidence ellipse (meter) 268
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 257
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 38
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 52
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.06565
Epicentral distance of station farthest from the epicenter (degree) 0.54679
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:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 86912351
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-04 11:56:09

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 86291201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-16 05:35:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESX.HHE. 2021-01-16T05:27:54.44 0.6 undecidable manual S 228 60.6948 50 0.57 40
IV.ARVD.HHE. 2021-01-16T05:27:54.00 0.1 undecidable manual S 345 59.7957 50 0.36 85
IV.TERO.HHZ. 2021-01-16T05:27:52.38 0.6 undecidable manual S 136 54.8007 50 0.08 46
IV.RM33.EHZ. 2021-01-16T05:27:51.82 0.3 undecidable manual S 173 52.4031 50 0.15 68
IV.MOMA.HNZ. 2021-01-16T05:27:51.48 0.3 undecidable manual S 247 49.9167 50 0.48 64
IV.FOSV.HNE. 2021-01-16T05:27:50.08 0.1 undecidable manual S 319 46.4202 50 0 94
IV.CING.HNZ. 2021-01-16T05:27:49.61 0.3 undecidable manual S 6 44.3223 50 0.09 70
IV.MNTT.EHE. 2021-01-16T05:27:49.37 0.1 undecidable manual S 76 38.4282 50 1.44 56
IV.LNSS.HHZ. 2021-01-16T05:27:49.34 0.3 undecidable manual S 191 42.3243 50 0.36 66
IV.SMA1.EHZ. 2021-01-16T05:27:48.60 0.6 undecidable manual S 157 41.8248 50 -0.24 45
IV.EL6.EHZ. 2021-01-16T05:27:48.30 0.6 undecidable manual S 356 39.0276 50 0.19 46
IV.T1299.HNN. 2021-01-16T05:27:48.45 0.3 undecidable manual S 163 39.9267 50 0.11 70
IV.ASSB.HHZ. 2021-01-16T05:27:47.96 0.6 undecidable manual S 281 39.4272 50 -0.23 45
IV.MTRA.EHZ. 2021-01-16T05:27:45.94 0.3 undecidable manual S 139 32.4453 50 -0.39 66
IV.CESX.HHE. 2021-01-16T05:27:45.80 0.6 undecidable manual P 228 60.6948 50 -0.1 45
IV.ARVD.HHE. 2021-01-16T05:27:45.78 0.3 undecidable manual P 345 59.7957 50 0.01 69
IV.MOMA.HNZ. 2021-01-16T05:27:44.60 0.6 undecidable manual P 247 49.9167 50 0.36 43
IV.RM33.EHZ. 2021-01-16T05:27:44.35 0.6 undecidable manual P 173 52.4031 50 -0.28 44
IV.MF5.EHZ. 2021-01-16T05:27:44.97 0.3 undecidable manual S 88 26.2515 50 0.28 69
IV.TERO.HHZ. 2021-01-16T05:27:44.64 0.3 undecidable manual P 136 54.8007 50 -0.35 64
IV.SAP2.EHZ. 2021-01-16T05:27:44.56 0.1 undecidable manual S 58 25.0527 50 0.19 94
IV.FOSV.HNE. 2021-01-16T05:27:43.31 0.3 undecidable manual P 319 46.4202 50 -0.4 65
IV.CING.HNZ. 2021-01-16T05:27:43.07 0.3 undecidable manual P 6 44.3223 50 -0.31 66
IV.CESI.HHZ. 2021-01-16T05:27:42.42 0.3 undecidable manual S 279 19.0698 118 -0.06 73
IV.LNSS.HHZ. 2021-01-16T05:27:42.69 0.3 undecidable manual P 191 42.3243 50 -0.38 65
IV.GUMA.HHZ. 2021-01-16T05:27:42.58 0.1 undecidable manual S 60 18.6702 118 0.2 94
IV.ASSB.HHZ. 2021-01-16T05:27:42.21 0.6 undecidable manual P 281 39.4272 50 -0.41 44
IV.MNTT.EHE. 2021-01-16T05:27:42.77 0.1 undecidable manual P 76 38.4282 50 0.3 90
IV.SMA1.EHZ. 2021-01-16T05:27:42.54 0.1 undecidable manual P 157 41.8248 50 -0.45 86
IV.EL6.EHZ. 2021-01-16T05:27:42.08 0.1 undecidable manual P 356 39.0276 50 -0.49 86
IV.T1299.HNN. 2021-01-16T05:27:42.42 0.3 undecidable manual P 163 39.9267 50 -0.28 67
IV.MTRA.EHZ. 2021-01-16T05:27:41.01 0.3 undecidable manual P 139 32.4453 50 -0.53 64
IV.NRCA.HHZ. 2021-01-16T05:27:41.51 0.1 undecidable manual S 186 16.0728 122 -0.1 97
IV.MMO1.EHZ. 2021-01-16T05:27:41.84 0.1 undecidable manual S 119 17.7711 120 -0.26 94
IV.PF6.EHN. 2021-01-16T05:27:41.77 0.3 undecidable manual S 15 18.3705 119 -0.51 67
IV.MC2.EHZ. 2021-01-16T05:27:40.04 0.3 undecidable manual S 150 8.4804 140 0.44 68
IV.SAP2.EHZ. 2021-01-16T05:27:40.67 0.3 undecidable manual P 58 25.0527 50 0.26 69
IT.MTCL.HGZ. 2021-01-16T05:27:40.40 0.3 undecidable manual S 279 11.2776 132 0.15 73
IV.CSP1.EHE. 2021-01-16T05:27:40.75 0.3 undecidable manual S 24 13.7751 126 -0.19 72
IV.MF5.EHZ. 2021-01-16T05:27:40.56 0.1 undecidable manual P 88 26.2515 50 -0.04 97
IV.FDMO.HHN. 2021-01-16T05:27:39.43 0.1 undecidable manual S 329 7.5813 143 0.03 100
IV.FEMA.HNE. 2021-01-16T05:27:39.80 0.1 undecidable manual S 256 7.2927 144 0.48 91
IV.CESI.HHZ. 2021-01-16T05:27:39.18 0.1 undecidable manual P 279 19.0698 118 -0.14 96
IV.GUMA.HHZ. 2021-01-16T05:27:39.41 0.3 undecidable manual P 60 18.6702 118 0.15 72
IV.MMO1.EHZ. 2021-01-16T05:27:38.88 0.1 undecidable manual P 119 17.7711 120 -0.22 95
IV.PF6.EHN. 2021-01-16T05:27:38.82 0.1 undecidable manual P 15 18.3705 119 -0.38 91
IV.CSP1.EHE. 2021-01-16T05:27:38.30 0.1 undecidable manual P 24 13.7751 126 -0.13 97
IT.MTCL.HGZ. 2021-01-16T05:27:38.07 0.1 undecidable manual P 279 11.2776 132 0.04 99
IV.NRCA.HHZ. 2021-01-16T05:27:38.71 0.1 undecidable manual P 186 16.0728 122 -0.11 97
IV.MC2.EHZ. 2021-01-16T05:27:37.94 0.1 undecidable manual P 150 8.4804 140 0.28 95
IV.FDMO.HHN. 2021-01-16T05:27:37.56 0.1 undecidable manual P 329 7.5813 143 0.02 100
IV.FEMA.HNE. 2021-01-16T05:27:37.75 0.1 undecidable manual P 256 7.2927 144 0.25 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:1.8 0.00055710225 0.08 AML other m 2021-01-16T05:27:41.57
IV.NRCA.HHN. ML:1.8 0.0006039999999999999 0.08 AML other m 2021-01-16T05:27:41.60
IV.NRCA.HNE. ML:1.9 0.0006782175 0.0896 AML other m 2021-01-16T05:27:41.70
IV.NRCA.HHE. ML:1.9 0.0007195 0.08 AML other m 2021-01-16T05:27:41.73
IV.CESI.HHE. ML:1.2 0.00012186255500000001 0.1408 AML other m 2021-01-16T05:27:42.49
IV.CESI.HNE. ML:1.2 0.00013028332 0.16 AML other m 2021-01-16T05:27:42.49
IV.GUMA.HNE. ML:1.8 0.000499 0.3 AML other m 2021-01-16T05:27:42.79
IV.GUMA.HHE. ML:2.0 0.0008515 0.28 AML other m 2021-01-16T05:27:42.80
IV.GUMA.HNN. ML:1.8 0.000546 0.22 AML other m 2021-01-16T05:27:42.69
IV.CESI.HNN. ML:1.4 0.0001740536 0.16 AML other m 2021-01-16T05:27:43.47
IV.CESI.HHN. ML:1.4 0.0001773561 0.16 AML other m 2021-01-16T05:27:43.48
IV.GUMA.HHN. ML:1.8 0.0005420000000000001 0.32 AML other m 2021-01-16T05:27:44.16
IV.SAP2.EHN. ML:2.6 0.0024377975000000004 0.16 AML other m 2021-01-16T05:27:44.92
IV.MF5.EHN. ML:1.4 0.0001365622 0.2208 AML other m 2021-01-16T05:27:45.19
IV.SAP2.EHE. ML:1.8 0.0004125 0.12 AML other m 2021-01-16T05:27:45.28
IV.MTRA.EHN. ML:1.6 0.00018826453999999998 0.2208 AML other m 2021-01-16T05:27:46.07
IV.MTRA.HNN. ML:1.7 0.00020070165000000002 0.1696 AML other m 2021-01-16T05:27:46.16
IV.MTRA.EHE. ML:1.7 0.00023160370000000003 0.2592 AML other m 2021-01-16T05:27:46.45
IV.MTRA.HNE. ML:1.6 0.000167159655 0.1408 AML other m 2021-01-16T05:27:46.45
IV.SMA1.EHE. ML:1.3 0.0000628021445 0.2208 AML other m 2021-01-16T05:27:48.86
IV.SMA1.EHN. ML:1.2 0.000048354370000000004 0.1024 AML other m 2021-01-16T05:27:49.15
IV.ASSB.HHE. ML:0.9 0.0000311118365 0.08 AML other m 2021-01-16T05:27:49.21
IV.ASSB.HHN. ML:1.1 0.00004190927 0.1408 AML other m 2021-01-16T05:27:49.31
IV.LNSS.HHE. ML:1.2 0.000044615405 0.1184 AML other m 2021-01-16T05:27:50.59
IV.LNSS.HHN. ML:1.2 0.00004788264 0.2208 AML other m 2021-01-16T05:27:52.11
IV.MNTT.EHE. ML:2.0 0.0003799066 0.1408 AML other m 2021-01-16T05:27:52.73
IV.RM33.EHN. ML:1.2 0.000039176483999999996 0.2784 AML other m 2021-01-16T05:27:52.81
IV.TERO.HHE. ML:1.3 0.000045539339999999996 0.1408 AML other m 2021-01-16T05:27:53.28
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