Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 06-01-2020 and time 20:59:38 (Italy) in region Ussita (MC)

A magnitude ML 0.9 earthquake occured in region: Ussita (MC), on

  • 06-01-2020 19:59:38 (UTC)
  • 06-01-2020 20:59:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9410, 13.1420 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
Ussita MC 1 444 444
Visso MC 4 1107 1551
Castelsantangelo sul Nera MC 5 281 1832
Bolognola MC 9 142 1974
Acquacanina MC 10 121 2095
Fiastra MC 11 559 2654
Preci PG 11 724 3378
Fiordimonte MC 12 202 3580
Monte Cavallo MC 13 145 3725
Pieve Torina MC 14 1458 5183
Pievebovigliana MC 14 866 6049
Montemonaco AP 16 604 6653
Montefortino FM 16 1178 7831
Sarnano MC 17 3264 11095
Norcia PG 17 4957 16052
Muccia MC 18 915 16967
Amandola FM 18 3629 20596
Sellano PG 18 1079 21675
Montegallo AP 19 523 22198

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
56 Km NW of Teramo (54892 inhabitants)
58 Km NE of Terni (111501 inhabitants)
64 Km E of Perugia (166134 inhabitants)
69 Km NW of L'Aquila (69753 inhabitants)
81 Km SW of Ancona (100861 inhabitants)
95 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 0.9 2020-01-06
19:59:38		 42.9413 13.1418 13 2020-07-18
21:08:23		 Bollettino Sismico Italiano INGV 77020011
Reviewed
Rev100 		ML 0.9 2020-01-06
19:59:38		 42.9385 13.1467 13 2020-01-06
20:07:49		 Sala Sismica INGV-Roma 75339141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-06 19:59:38 ± 0.09
Latitude 42.9413 ± 0.0027
Longitude 13.1418 ± 0.0049
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77020011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 408
Semi-minor axis of confidence ellipse (meter) 89
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 67
Circular confidence region, given by single value of horizontal uncertainty (meter) 410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.04587
Epicentral distance of station farthest from the epicenter (degree) 0.24372
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 77020011
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-03-04 09:29:21

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 75339141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-06 20:07:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MML1.HNZ. 2020-01-06T19:59:46.94 0.3 undecidable manual S 324 23.5542 100 0.02 73
IV.PF6.EHZ. 2020-01-06T19:59:46.24 0.3 undecidable manual S 11 22.1556 101 -0.32 68
IV.CESI.HNZ. 2020-01-06T19:59:46.31 0.3 undecidable manual S 290 20.4684 103 0.19 71
IV.GUMA.HHZ. 2020-01-06T19:59:46.50 0.3 undecidable manual S 49 20.6682 103 0.34 70
IV.CSP1.EHZ. 2020-01-06T19:59:45.22 0.6 undecidable manual S 17 17.4714 108 -0.12 48
IV.MF5.EHZ. 2020-01-06T19:59:44.17 0.6 undecidable manual P 79 26.3514 98 0.55 43
IT.MTCL.HGZ. 2020-01-06T19:59:44.15 0.3 undecidable manual S 297 12.9759 120 -0.09 73
IV.SAP2.EHZ. 2020-01-06T19:59:44.30 0.6 undecidable manual P 50 27.0507 97 0.56 43
IV.MMO1.EHZ. 2020-01-06T19:59:44.54 0.3 undecidable manual S 107 15.7731 112 -0.37 69
IV.FDMO.HHZ. 2020-01-06T19:59:43.72 0.3 undecidable manual S 337 11.4774 126 -0.18 72
IV.NRCA.HHZ. 2020-01-06T19:59:43.85 0.3 undecidable manual S 191 12.1767 123 -0.21 73
IV.MML1.HNZ. 2020-01-06T19:59:43.18 0.6 undecidable manual P 324 23.5542 100 -0.03 49
IV.FEMA.HNZ. 2020-01-06T19:59:43.30 0.6 undecidable manual S 287 7.7811 140 0.1 50
IV.GUMA.HHZ. 2020-01-06T19:59:42.83 0.6 undecidable manual P 49 20.6682 103 0.06 49
IV.CSP1.EHZ. 2020-01-06T19:59:42.22 0.1 undecidable manual P 17 17.4714 108 -0.07 97
IV.MC2.EHZ. 2020-01-06T19:59:42.93 0.3 undecidable manual S 131 5.0949 153 0.14 74
IV.PF6.EHZ. 2020-01-06T19:59:42.76 0.3 undecidable manual P 11 22.1556 101 -0.24 70
IV.CESI.HNZ. 2020-01-06T19:59:42.82 0.3 undecidable manual P 290 20.4684 103 0.08 73
IV.FEMA.HNZ. 2020-01-06T19:59:41.05 0.6 undecidable manual P 287 7.7811 140 -0.01 50
IV.MMO1.EHZ. 2020-01-06T19:59:41.87 0.3 undecidable manual P 107 15.7731 112 -0.17 72
IV.FDMO.HHZ. 2020-01-06T19:59:41.42 0.1 undecidable manual P 337 11.4774 126 -0.04 99
IV.NRCA.HHZ. 2020-01-06T19:59:41.54 0.1 undecidable manual P 191 12.1767 123 -0.02 100
IT.MTCL.HGZ. 2020-01-06T19:59:41.70 0.3 undecidable manual P 297 12.9759 120 0.05 75
IV.MC2.EHZ. 2020-01-06T19:59:40.97 0.1 undecidable manual P 131 5.0949 153 0.15 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.6 0.00004165 0.56 AML other m 2020-01-06T19:59:43.88
IV.NRCA.HHE. ML:1.2 0.000148 0.16 AML other m 2020-01-06T19:59:43.91
IV.NRCA.HHN. ML:1.0 0.0000926 1.18 AML other m 2020-01-06T19:59:44.64
IV.FDMO.HHN. ML:0.9 0.000079 1.74 AML other m 2020-01-06T19:59:44.95
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