Earthquake with magnitude of ML 1.8 on date 08-02-2021 and time 09:14:52 (Italy) in region 3 km NW Ussita (MC)

A magnitude ML 1.8 earthquake occured in region: 3 km NW Ussita (MC), on

  • 08-02-2021 08:14:52 (UTC)
  • 08-02-2021 09:14:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.97, 13.12 at 9 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.

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 3 444 444
Visso MC 5 1107 1551
Fiastra MC 8 559 2110
Acquacanina MC 8 121 2231
Castelsantangelo sul Nera MC 8 281 2512
Fiordimonte MC 8 202 2714
Bolognola MC 9 142 2856
Monte Cavallo MC 11 145 3001
Pieve Torina MC 11 1458 4459
Pievebovigliana MC 11 866 5325
Preci PG 12 724 6049
Muccia MC 15 915 6964
Sarnano MC 16 3264 10228
Montefortino FM 18 1178 11406
Montemonaco AP 18 604 12010
Sellano PG 18 1079 13089
Serravalle di Chienti MC 18 1070 14159
Amandola FM 19 3629 17788
Cessapalombo MC 19 512 18300
Camerino MC 19 6974 25274
Norcia PG 19 4957 30231

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
58 Km NW of Teramo (54892 inhabitants)
60 Km NE of Terni (111501 inhabitants)
62 Km E of Perugia (166134 inhabitants)
72 Km NW of L'Aquila (69753 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
98 Km NW of Montesilvano (53738 inhabitants)
98 Km S of Fano (60888 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.8 2021-02-08
08:14:52
42.97 13.13 9 2021-02-08
08:23:00
Sala Sismica INGV-Roma 86927291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-08 08:14:52 ± 0.05
Latitude 42.97 ± 0.00
Longitude 13.13 ± 0.00
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86927291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 381
Semi-minor axis of confidence ellipse (meter) 184
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 18
Circular confidence region, given by single value of horizontal uncertainty (meter) 380
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 51
Number of associated phases, regardless of their use for origin computation 47
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.49103
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 86927291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-08 08:23:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MSRU.HHZ. 2021-02-08T08:16:09.28 3.0 undecidable manual Pg 6.38 0
IV.SLCN.HHZ. 2021-02-08T08:15:59.97 3.0 undecidable manual Sn -9.99 0
IV.CAGR.HHZ. 2021-02-08T08:15:58.28 3.0 undecidable manual Pn -9.99 0
IV.VITU.HHZ. 2021-02-08T08:15:45.73 3.0 undecidable manual Sg -2.18 0
IV.PLLN.EHZ. 2021-02-08T08:15:45.92 3.0 positive manual Pn -9.99 0
IV.NOV.HHZ. 2021-02-08T08:15:43.80 3.0 negative manual Pn -9.99 0
IV.FIR.HHZ. 2021-02-08T08:15:41.59 3.0 undecidable manual Sn 4.22 0
OT.OT12.EHZ. 2021-02-08T08:15:38.17 3.0 undecidable manual Sn -9.99 0
IV.VIVA.HHZ. 2021-02-08T08:15:22.75 3.0 undecidable manual Sn -4.79 0
IV.FIR.HHZ. 2021-02-08T08:15:15.34 3.0 positive manual Pg -1.35 0
IV.CDRU.HHZ. 2021-02-08T08:15:15.79 3.0 undecidable manual Pn -9.99 0
IV.PTRJ.HNZ. 2021-02-08T08:15:13.21 3.0 undecidable manual Pg -6.74 0
IV.MURB.HHZ. 2021-02-08T08:15:12.83 3.0 undecidable manual Sn 1.24 0
IV.RIBO.EHZ.01 2021-02-08T08:15:12.80 3.0 undecidable manual Pn -2.99 0
IV.ARVD.HHZ. 2021-02-08T08:15:12.12 3.0 undecidable manual Sn 0.38 0
IV.TERO.HHZ. 2021-02-08T08:15:09.93 0.6 undecidable manual S 134 0.491 50 0.2 45
IV.ATCC.EHZ. 2021-02-08T08:15:07.78 0.3 undecidable manual S 302 0.4164 50 0.28 68
IV.LNSS.HHZ. 2021-02-08T08:15:06.48 0.3 undecidable manual S 190 0.3687 50 0.38 67
IV.SMA1.EHZ. 2021-02-08T08:15:05.94 0.6 undecidable manual S 155 0.3696 50 -0.18 46
IV.ASSB.HHZ. 2021-02-08T08:15:05.52 0.3 undecidable manual S 283 0.3489 50 0 73
IV.SNTG.HHZ. 2021-02-08T08:15:04.57 0.3 undecidable manual S 335 0.3184 50 -0.03 73
IV.ARVD.HHZ. 2021-02-08T08:15:03.44 3.0 positive manual Pg 1.15 0
IV.MF5.EHZ. 2021-02-08T08:15:02.65 0.3 undecidable manual S 85 0.2455 107 0.57 65
IV.TERO.HHZ. 2021-02-08T08:15:01.97 0.1 undecidable manual P 134 0.491 50 -0.33 88
IV.ARRO.EHZ. 2021-02-08T08:15:01.83 0.1 undecidable manual P 214 0.4685 50 -0.08 93
IV.ATCC.EHZ. 2021-02-08T08:15:01.37 0.3 negative manual P 302 0.4164 50 0.35 67
IV.MOMA.HHZ. 2021-02-08T08:15:01.76 3.0 positive manual Pg 1.19 0
IV.GUMA.HHZ. 2021-02-08T08:15:00.19 0.3 undecidable manual S 58 0.1808 113 0.44 68
IV.MGAB.HHZ. 2021-02-08T08:15:00.74 3.0 undecidable manual Pn -4.32 0
IV.ASSB.HHZ. 2021-02-08T08:14:59.69 0.1 positive manual P 283 0.3489 50 -0.19 93
IV.SMA1.EHZ. 2021-02-08T08:14:59.90 0.6 positive manual P 155 0.3696 50 -0.32 45
IV.LNSS.HHZ. 2021-02-08T08:14:59.99 0.6 positive manual P 190 0.3687 50 -0.22 46
IV.CESI.HHZ. 2021-02-08T08:14:59.31 0.3 undecidable manual S 283 0.1655 115 0.11 74
IV.SNTG.HHZ. 2021-02-08T08:14:59.09 0.1 undecidable manual P 335 0.3184 50 -0.25 92
IV.CSP1.EHZ. 2021-02-08T08:14:58.04 0.3 undecidable manual S 25 0.1385 119 -0.22 72
IV.MMO1.EHZ. 2021-02-08T08:14:58.76 0.3 undecidable manual S 114 0.1619 115 -0.32 70
IV.MF5.EHZ. 2021-02-08T08:14:58.01 0.1 undecidable manual P 85 0.2455 107 0.12 96
IV.CESI.HHZ. 2021-02-08T08:14:56.47 0.1 positive manual P 283 0.1655 115 0.24 95
IT.MTCL.HGZ. 2021-02-08T08:14:56.88 0.6 undecidable manual S 287 0.0962 129 -0.02 51
IV.GUMA.HHZ. 2021-02-08T08:14:56.70 0.3 positive manual P 58 0.1808 113 0.16 73
IV.MMO1.EHZ. 2021-02-08T08:14:56.01 0.3 positive manual P 114 0.1619 115 -0.15 73
IV.CSP1.EHZ. 2021-02-08T08:14:55.52 0.1 undecidable manual P 25 0.1385 119 -0.16 98
IV.FDMO.HHZ. 2021-02-08T08:14:55.97 0.3 undecidable manual S 339 0.0755 136 -0.34 71
IV.FEMA.HNZ. 2021-02-08T08:14:55.86 0.3 undecidable manual S 265 0.0549 144 0.04 76
IV.FEMA.HNZ. 2021-02-08T08:14:54.42 0.3 negative manual P 265 0.0549 144 0.15 75
IT.MTCL.HGZ. 2021-02-08T08:14:54.98 0.1 undecidable manual P 287 0.0962 129 0.08 100
IV.FDMO.HHZ. 2021-02-08T08:14:54.41 0.1 positive manual P 339 0.0755 136 -0.15 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FEMA.HNN. ML:2.1 0.002225 0.22 AML other m 2021-02-08T08:14:56.02
IV.FEMA.HNE. ML:2.2 0.00264 1.52 AML other m 2021-02-08T08:14:56.13
IV.FDMO.HHE. ML:1.6 0.000569 0.3 AML other m 2021-02-08T08:14:56.14
IV.FDMO.HHN. ML:1.7 0.000735 1.46 AML other m 2021-02-08T08:14:56.24
IV.CSP1.EHE. ML:1.8 0.0007345 0.34 AML other m 2021-02-08T08:14:58.37
IV.CSP1.EHN. ML:1.9 0.000895 0.38 AML other m 2021-02-08T08:14:58.63
IV.NRCA.HHN. ML:1.7 0.00059 0.12 AML other m 2021-02-08T08:14:58.79
IV.NRCA.HHE. ML:1.8 0.0006705 0.44 AML other m 2021-02-08T08:14:59.40
IV.CESI.HHE. ML:1.8 0.0004885 1.2 AML other m 2021-02-08T08:14:59.77
IV.CESI.HHN. ML:1.9 0.000738 0.24 AML other m 2021-02-08T08:14:59.80
IV.GUMA.HHN. ML:1.8 0.000425 0.9 AML other m 2021-02-08T08:15:01.62
IV.GUMA.HHE. ML:1.9 0.0005865 0.54 AML other m 2021-02-08T08:15:03.20
IV.ASSB.HHN. ML:1.6 0.0001615 0.22 AML other m 2021-02-08T08:15:05.75
IV.ASSB.HHE. ML:1.7 0.000175 0.26 AML other m 2021-02-08T08:15:05.79
IV.MGAB.HHN. ML:1.9 9.725E-5 0.42 AML other m 2021-02-08T08:15:08.36
IV.MOMA.HHE. ML:1.6 0.0001039 1 AML other m 2021-02-08T08:15:10.97
IV.MGAB.HHE. ML:2 0.0001305 0.98 AML other m 2021-02-08T08:15:12.66
IV.MOMA.HHN. ML:1.4 7.575E-5 0.76 AML other m 2021-02-08T08:15:18.92
IV.FIR.HHE. ML:3 0.0004125 0.08 AML other m 2021-02-08T08:15:49.66
IV.FIR.HHN. ML:3 0.000429 0.98 AML other m 2021-02-08T08:15:59.39
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download