Earthquake with magnitude of ML 1.8 on date 07-02-2021 and time 06:48:15 (Italy) in region 2 km N Ussita (MC)

A magnitude ML 1.8 earthquake occured in region: 2 km N Ussita (MC), on

  • 07-02-2021 05:48:15 (UTC)
  • 07-02-2021 06:48:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.96, 13.14 at 7 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 2 444 444
Visso MC 5 1107 1551
Castelsantangelo sul Nera MC 8 281 1832
Acquacanina MC 8 121 1953
Bolognola MC 8 142 2095
Fiastra MC 8 559 2654
Fiordimonte MC 9 202 2856
Pieve Torina MC 11 1458 4314
Monte Cavallo MC 12 145 4459
Pievebovigliana MC 12 866 5325
Preci PG 12 724 6049
Muccia MC 15 915 6964
Sarnano MC 16 3264 10228
Montefortino FM 17 1178 11406
Montemonaco AP 17 604 12010
Amandola FM 18 3629 15639
Cessapalombo MC 19 512 16151
Sellano PG 19 1079 17230
Serravalle di Chienti MC 19 1070 18300
Norcia PG 19 4957 23257
Camerino MC 20 6974 30231
Gualdo MC 20 815 31046

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
57 Km NW of Teramo (54892 inhabitants)
60 Km NE of Terni (111501 inhabitants)
63 Km E of Perugia (166134 inhabitants)
71 Km NW of L'Aquila (69753 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
97 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 2021-02-07
05:48:15
42.96 13.14 7 2021-02-07
05:53:33
Sala Sismica INGV-Roma 86899251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-07 05:48:15 ± 0.11
Latitude 42.96 ± 0.00
Longitude 13.14 ± 0.00
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86899251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 374
Semi-minor axis of confidence ellipse (meter) 130
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 20
Circular confidence region, given by single value of horizontal uncertainty (meter) 370
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 80
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.42988
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 34
Type of magnitude ML
Reference to an origin 86899251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-07 05:53:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2021-02-07T05:48:35.13 3.0 undecidable manual S -0.02 0
IV.FOSV.EHZ. 2021-02-07T05:48:31.34 0.6 undecidable manual S 320 0.4299 50 0.31 45
IV.SMA1.EHZ. 2021-02-07T05:48:28.68 3.0 undecidable manual S -0.16 0
IV.ARVD.HHZ. 2021-02-07T05:48:25.84 3.0 undecidable manual P -0.36 0
IV.MF5.EHZ. 2021-02-07T05:48:25.24 0.3 undecidable manual S 84 0.2365 106 0.8 60
IV.SAP2.EHZ. 2021-02-07T05:48:24.43 0.6 undecidable manual S 55 0.232 106 0.15 48
IV.FOSV.EHZ. 2021-02-07T05:48:23.68 0.6 undecidable manual P 320 0.4299 50 -0.58 42
IV.MML1.HNZ. 2021-02-07T05:48:23.03 0.3 undecidable manual S 321 0.1925 109 0.2 72
IV.MNTT.EHZ. 2021-02-07T05:48:23.50 3.0 undecidable manual P 1.01 0
IV.LNSS.HHZ. 2021-02-07T05:48:22.69 3.0 negative manual P 0 0
IV.PF6.EHZ. 2021-02-07T05:48:22.06 0.3 undecidable manual S 13 0.1781 110 -0.25 72
IV.CESI.HHZ. 2021-02-07T05:48:22.86 0.3 undecidable manual S 283 0.1754 110 0.64 64
IV.EL6.EHZ. 2021-02-07T05:48:22.37 3.0 undecidable manual P -0.39 0
IV.GUMA.HHZ. 2021-02-07T05:48:22.72 0.6 undecidable manual S 56 0.1745 111 0.55 44
IV.ASSB.HHZ. 2021-02-07T05:48:22.35 3.0 undecidable manual P -0.2 0
IV.MMO1.EHZ. 2021-02-07T05:48:21.24 0.3 undecidable manual S 115 0.1529 113 -0.16 73
IV.MF5.EHZ. 2021-02-07T05:48:20.60 0.1 positive manual P 84 0.2365 106 0.15 97
IV.SAP2.EHZ. 2021-02-07T05:48:20.84 0.6 undecidable manual P 55 0.232 106 0.48 45
IT.MTCL.HGZ. 2021-02-07T05:48:20.01 0.3 undecidable manual S 286 0.1061 122 0.22 73
IV.CSP1.EHZ. 2021-02-07T05:48:20.76 0.3 undecidable manual S 21 0.1358 116 -0.06 75
IV.NRCA.HHZ. 2021-02-07T05:48:20.95 0.3 undecidable manual S 188 0.1322 116 0.26 72
IV.GUMA.HHZ. 2021-02-07T05:48:19.14 0.3 undecidable manual P 56 0.1745 111 0 75
IV.MML1.HNZ. 2021-02-07T05:48:19.33 0.1 undecidable manual P 321 0.1925 109 -0.19 96
IV.CESI.HHZ. 2021-02-07T05:48:19.14 0.1 positive manual P 283 0.1754 110 -0.03 100
IV.CSP1.EHZ. 2021-02-07T05:48:18.14 0.1 negative manual P 21 0.1358 116 -0.22 97
IV.MC2.EHZ. 2021-02-07T05:48:18.36 0.3 undecidable manual S 145 0.0648 135 -0.19 74
IV.NRCA.HHZ. 2021-02-07T05:48:18.17 0.1 negative manual P 188 0.1322 116 -0.11 99
IV.FDMO.HHZ. 2021-02-07T05:48:18.91 0.3 undecidable manual S 333 0.0809 129 -0.11 75
IV.PF6.EHZ. 2021-02-07T05:48:18.85 0.3 undecidable manual P 13 0.1781 110 -0.37 70
IV.MMO1.EHZ. 2021-02-07T05:48:18.39 0.3 undecidable manual P 115 0.1529 113 -0.31 71
IV.FEMA.HNZ. 2021-02-07T05:48:18.54 0.3 undecidable manual S 268 0.0648 135 -0.01 77
IV.FEMA.HNZ. 2021-02-07T05:48:17.05 0.3 undecidable manual P 268 0.0648 135 0 77
IV.FDMO.HHZ. 2021-02-07T05:48:17.11 0.3 undecidable manual P 333 0.0809 129 -0.21 74
IT.MTCL.HGZ. 2021-02-07T05:48:17.76 0.3 undecidable manual P 286 0.1061 122 -0.01 76
IV.MC2.EHZ. 2021-02-07T05:48:16.81 0.3 positive manual P 145 0.0648 135 -0.24 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:1.9 0.001425 0.18 AML other m 2021-02-07T05:48:19.69
IV.FDMO.HHE. ML:1.8 0.00105235425 0.24 AML other m 2021-02-07T05:48:19.40
IV.NRCA.HHE. ML:2.2 0.00193 0.12 AML other m 2021-02-07T05:48:21.58
IV.NRCA.HNE. ML:2.2 0.001855 0.12 AML other m 2021-02-07T05:48:21.58
IV.NRCA.HHN. ML:2 0.00105378265 0.2816 AML other m 2021-02-07T05:48:21.34
IV.CSP1.EHN. ML:2.1 0.0013507955 0.3424 AML other m 2021-02-07T05:48:21.04
IV.CESI.HHE. ML:2 0.000838 0.26 AML other m 2021-02-07T05:48:23.15
IV.NRCA.HNN. ML:2 0.00105065935 0.3008 AML other m 2021-02-07T05:48:21.35
IV.CSP1.EHE. ML:1.9 0.00082260885 0.4992 AML other m 2021-02-07T05:48:25.34
IV.CESI.HHN. ML:2 0.000771 0.36 AML other m 2021-02-07T05:48:23.11
IV.GUMA.HHN. ML:2 0.0008135 1.34 AML other m 2021-02-07T05:48:24.03
IV.SAP2.EHN. ML:0 0.00116062585 0.3616 AML other m 2021-02-07T05:48:27.56
IV.GUMA.HHE. ML:2 0.000843 1.66 AML other m 2021-02-07T05:48:29.14
IV.ASSB.HHN. ML:1.9 0.0003085 0.22 AML other m 2021-02-07T05:48:29.24
IV.EL6.EHE. ML:1.6 0.00013787525 0.1408 AML other m 2021-02-07T05:48:30.03
IV.SAP2.EHE. ML:0 0.000205205825 0.3392 AML other m 2021-02-07T05:48:29.44
IV.EL6.EHN. ML:1.7 0.000175186925 0.3008 AML other m 2021-02-07T05:48:30.45
IV.ASSB.HHE. ML:1.7 0.00017606555 0.1984 AML other m 2021-02-07T05:48:30.56
IV.FOSV.EHN. ML:1.6 9.9394185E-5 0.4192 AML other m 2021-02-07T05:48:33.38
IV.FOSV.EHE. ML:1.4 7.4923565E-5 0.3392 AML other m 2021-02-07T05:48:32.32
IV.ARVD.HHN. ML:1.2 3.09655433E-5 0.2208 AML other m 2021-02-07T05:48:36.81
IV.ARVD.HHE. ML:1.5 6.385E-5 0.28 AML other m 2021-02-07T05:48:36.32
IV.GUMA.HNE. ML:1.8 0.00059504925 0.5472 AML other m 2021-02-07T05:48:28.37
IV.GUMA.HNN. ML:2 0.00083893035 0.4992 AML other m 2021-02-07T05:48:23.76
IV.CESI.HNE. ML:2 0.0008080054 0.272 AML other m 2021-02-07T05:48:23.15
IV.CESI.HNN. ML:2.2 0.001441722 0.7904 AML other m 2021-02-07T05:48:24.59
IV.MF5.EHE. ML:1.7 0.0003015882 0.6624 AML other m 2021-02-07T05:48:28.84
IV.MF5.EHN. ML:1.6 0.00023108285 0.3808 AML other m 2021-02-07T05:48:27.95
IV.LNSS.HHE. ML:1.6 0.00013657875 0.16 AML other m 2021-02-07T05:48:30.06
IV.LNSS.HHN. ML:1.6 0.0001462879 0.2176 AML other m 2021-02-07T05:48:29.35
IV.LNSS.HNE. ML:1.6 0.000132750915 0.3296 AML other m 2021-02-07T05:48:33.67
IV.LNSS.HNN. ML:1.8 0.000189580915 0.7584 AML other m 2021-02-07T05:48:37.57
IV.MNTT.EHE. ML:2 0.00034595545 0.1824 AML other m 2021-02-07T05:48:30.66
IV.MNTT.EHN. ML:1.8 0.0002311098 0.32 AML other m 2021-02-07T05:48:35.05
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