Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.5 on date 16-03-2020 and time 21:28:59 (Italy) in region 4 km NW Ussita (MC)

A magnitude ML 0.5 earthquake occured in region: 4 km NW Ussita (MC), on

  • 16-03-2020 20:28:59 (UTC)
  • 16-03-2020 21:28:59 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9800, 13.1160 at 7 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 4 444 444
Visso MC 6 1107 1551
Fiordimonte MC 7 202 1753
Fiastra MC 7 559 2312
Acquacanina MC 8 121 2433
Pieve Torina MC 9 1458 3891
Bolognola MC 9 142 4033
Monte Cavallo MC 9 145 4178
Pievebovigliana MC 10 866 5044
Castelsantangelo sul Nera MC 10 281 5325
Preci PG 13 724 6049
Muccia MC 13 915 6964
Sarnano MC 16 3264 10228
Serravalle di Chienti MC 17 1070 11298
Camerino MC 18 6974 18272
Sellano PG 18 1079 19351
Cessapalombo MC 19 512 19863
Montefortino FM 19 1178 21041
Montemonaco AP 19 604 21645
Amandola FM 20 3629 25274
Caldarola MC 20 1823 27097

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
60 Km NW of Teramo (54892 inhabitants)
60 Km NE of Terni (111501 inhabitants)
61 Km E of Perugia (166134 inhabitants)
74 Km NW of L'Aquila (69753 inhabitants)
78 Km SW of Ancona (100861 inhabitants)
97 Km S of Fano (60888 inhabitants)
99 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 0.5 2020-03-16
20:28:59		 42.9795 13.1162 7 2020-07-18
21:08:29		 Bollettino Sismico Italiano INGV 77621801
Reviewed
Rev100 		ML 0.6 2020-03-16
20:28:59		 42.9848 13.126 8 2020-03-16
20:42:49		 Sala Sismica INGV-Roma 77310611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-16 20:28:59 ± 0.08
Latitude 42.9795 ± 0.0027
Longitude 13.1162 ± 0.0037
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77621801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 290
Semi-minor axis of confidence ellipse (meter) 33
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 206
Circular confidence region, given by single value of horizontal uncertainty (meter) 290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.43617
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 77310611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-16 20:42:49

ML:0.5

Field Value
Value 0.5
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 77621801
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-03-27 16:26:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EUCT.HNZ. 2020-03-16T20:30:34.47 3.0 undecidable manual Sn -5.46 0
IV.VARE.HHZ. 2020-03-16T20:30:07.02 3.0 undecidable manual Pg 2.56 0
IV.SPS2.HHZ. 2020-03-16T20:30:06.40 3.0 undecidable manual Pn -3.22 0
IV.ORI.HHZ. 2020-03-16T20:30:04.00 3.0 undecidable manual Pg 2.24 0
IV.ZONE.HHZ. 2020-03-16T20:29:54.42 3.0 positive manual Pg 0.12 0
IV.CMPR.HHZ. 2020-03-16T20:29:54.31 3.0 undecidable manual Pg 2.41 0
IV.PCN.EHZ. 2020-03-16T20:29:50.99 3.0 undecidable manual Pg 0.89 0
IV.ROSPO.HHZ. 2020-03-16T20:29:44.99 3.0 undecidable manual Sn -7.7 0
IV.MF5.EHN. 2020-03-16T20:29:09.79 1.0 undecidable manual S 88 27.9498 104 0.48 22
IV.MOMA.HNZ. 2020-03-16T20:29:08.75 0.3 undecidable manual P 246 48.4182 50 -0.01 71
IV.GUMA.HHZ. 2020-03-16T20:29:07.30 0.3 undecidable manual S 62 20.0688 109 0.61 64
IV.PF6.EHZ. 2020-03-16T20:29:06.10 0.6 undecidable manual S 20 18.6702 110 -0.14 48
IV.CESI.HHZ. 2020-03-16T20:29:06.10 0.3 undecidable manual S 279 17.3715 112 0.27 71
IV.MMO1.EHZ. 2020-03-16T20:29:06.20 0.3 undecidable manual S 117 19.2696 110 -0.24 71
IV.MML1.HNZ. 2020-03-16T20:29:06.40 0.3 undecidable manual S 322 18.9699 110 0.07 74
IV.MF5.EHN. 2020-03-16T20:29:05.15 0.3 undecidable manual P 88 27.9498 104 0.05 73
IV.NRCA.HHZ. 2020-03-16T20:29:05.20 0.6 undecidable manual S 181 16.1727 113 -0.24 48
IV.CSP1.EHZ. 2020-03-16T20:29:04.80 0.3 undecidable manual S 30 14.3745 116 -0.08 74
IV.PF6.EHZ. 2020-03-16T20:29:03.14 0.1 undecidable manual P 20 18.6702 110 -0.19 96
IV.MML1.HNZ. 2020-03-16T20:29:03.26 0.1 undecidable manual P 322 18.9699 110 -0.11 97
IV.GUMA.HHZ. 2020-03-16T20:29:03.75 0.3 undecidable manual P 62 20.0688 109 0.17 72
IV.CESI.HHZ. 2020-03-16T20:29:03.19 0.1 undecidable manual P 279 17.3715 112 0.1 98
IT.MTCL.HGZ. 2020-03-16T20:29:03.30 0.6 undecidable manual S 280 9.5793 126 -0.14 49
IV.MC2.EHZ. 2020-03-16T20:29:03.60 0.3 undecidable manual S 142 9.5793 126 0.17 73
IV.MMO1.EHZ. 2020-03-16T20:29:03.16 0.1 undecidable manual P 117 19.2696 110 -0.28 94
IV.NRCA.HHZ. 2020-03-16T20:29:02.80 0.1 undecidable manual P 181 16.1727 113 -0.06 99
IV.CSP1.EHZ. 2020-03-16T20:29:02.49 0.1 undecidable manual P 30 14.3745 116 -0.04 99
IV.FDMO.HHZ. 2020-03-16T20:29:02.40 0.3 undecidable manual S 340 6.7932 136 -0.28 72
IV.FEMA.HNZ. 2020-03-16T20:29:02.60 1.0 undecidable manual S 250 5.6943 140 0.16 25
IV.MC2.EHZ. 2020-03-16T20:29:01.76 0.1 undecidable manual P 142 9.5793 126 0.05 100
IT.MTCL.HGZ. 2020-03-16T20:29:01.78 0.1 undecidable manual P 280 9.5793 126 0.08 100
IV.FEMA.HNZ. 2020-03-16T20:29:01.31 0.1 undecidable manual P 250 5.6943 140 0.18 98
IV.FDMO.HHZ. 2020-03-16T20:29:01.19 0.1 undecidable manual P 340 6.7932 136 -0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0.0 0.00008536907000000001 0.2048 AML other m 2020-03-16T20:29:02.76
IV.FDMO.HHE. ML:0.0 0.00008968467499999999 0.2688 AML other m 2020-03-16T20:29:02.68
IV.CSP1.EHE. ML:0.4 0.000029358602 0.2304 AML other m 2020-03-16T20:29:05.09
IV.CSP1.EHN. ML:0.1 0.000015571574 0.2176 AML other m 2020-03-16T20:29:06.27
IV.NRCA.HHN. ML:0.5 0.0000298439435 0.0768 AML other m 2020-03-16T20:29:07.14
IV.NRCA.HHE. ML:0.5 0.000030479249999999998 0.0512 AML other m 2020-03-16T20:29:08.05
IV.CESI.HHE. ML:0.5 0.000029479520000000003 0.1152 AML other m 2020-03-16T20:29:06.43
IV.CESI.HHN. ML:0.6 0.000038127895000000004 0.192 AML other m 2020-03-16T20:29:06.39
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