Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 01-03-2020 and time 15:37:38 (UTC) in region 1 km NE Ussita (MC)

A magnitude ML 1.8 earthquake occured in region: 1 km NE Ussita (MC), on

  • 01-03-2020 15:37:38 (UTC)
  • 01-03-2020 16:37:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9540, 13.1520 at 9 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 2 444 444
Visso MC 6 1107 1551
Castelsantangelo sul Nera MC 7 281 1832
Bolognola MC 8 142 1974
Acquacanina MC 9 121 2095
Fiastra MC 9 559 2654
Fiordimonte MC 11 202 2856
Preci PG 12 724 3580
Monte Cavallo MC 13 145 3725
Pieve Torina MC 13 1458 5183
Pievebovigliana MC 13 866 6049
Sarnano MC 15 3264 9313
Montefortino FM 16 1178 10491
Montemonaco AP 16 604 11095
Muccia MC 17 915 12010
Amandola FM 17 3629 15639
Norcia PG 19 4957 20596
Montegallo AP 19 523 21119
Cessapalombo MC 19 512 21631
Sellano PG 20 1079 22710
Gualdo MC 20 815 23525

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
56 Km NW of Teramo (54892 inhabitants)
60 Km NE of Terni (111501 inhabitants)
64 Km E of Perugia (166134 inhabitants)
70 Km N of L'Aquila (69753 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
95 Km NW of Montesilvano (53738 inhabitants)
100 Km S of Fano (60888 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 1.8 2020-03-01
15:37:38		 42.9543 13.1522 9 2020-07-18
21:08:30		 Bollettino Sismico Italiano INGV 77752401
Reviewed
Rev100 		ML 1.8 2020-03-01
15:37:38		 42.9522 13.1488 9 2020-03-01
15:46:56		 Sala Sismica INGV-Roma 76952981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-01 15:37:38 ± 0.06
Latitude 42.9543 ± 0.0027
Longitude 13.1522 ± 0.0037
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77752401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 304
Semi-minor axis of confidence ellipse (meter) 71
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 39
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.56477
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 77752401
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-04-01 09:17:01

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations 20
Type of magnitude ML
Reference to an origin 76952981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-01 15:46:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CR.STON.BHZ. 2020-03-01T15:39:09.30 3.0 undecidable manual Sn -2.06 0
IV.ECTS.HHZ. 2020-03-01T15:39:06.38 3.0 positive manual Pg 17.52 0
IV.PTRJ.HNZ. 2020-03-01T15:38:42.55 3.0 undecidable manual Sg 8.87 0
XK.ALB1.HHZ. 2020-03-01T15:38:37.33 3.0 undecidable manual Pn -5.64 0
IV.VBKN.HHZ. 2020-03-01T15:38:35.33 3.0 undecidable manual Sn -7.5 0
IV.VBKN.HHZ. 2020-03-01T15:38:15.40 3.0 negative manual Pg 5.88 0
IV.EUCT.HNZ. 2020-03-01T15:38:11.36 3.0 positive manual Pn -1.09 0
IV.RONT.HHZ. 2020-03-01T15:37:57.49 3.0 undecidable manual Sn -1.35 0
IV.SMA1.EHZ. 2020-03-01T15:37:51.40 0.3 undecidable manual S 157 38.9277 50 0.04 71
IV.SNTG.HHZ. 2020-03-01T15:37:50.94 0.3 undecidable manual S 333 37.5291 50 -0.05 71
IV.ZCCA.HHZ. 2020-03-01T15:37:49.85 3.0 positive manual Pn -1.59 0
IV.ARVD.HHZ. 2020-03-01T15:37:49.49 0.6 undecidable manual P 344 62.6928 50 0.07 45
IV.MTRA.HNZ. 2020-03-01T15:37:48.95 0.6 undecidable manual S 138 29.5482 107 0.14 47
IV.SEF1.HNZ. 2020-03-01T15:37:48.39 0.6 undecidable manual S 322 27.0507 108 0.42 45
IV.MF5.EHZ. 2020-03-01T15:37:47.58 0.3 undecidable manual S 81 25.2525 110 0.2 70
IV.MML1.EHZ. 2020-03-01T15:37:46.57 0.6 undecidable manual S 320 22.9548 112 -0.06 48
IV.CESI.HHZ. 2020-03-01T15:37:46.26 0.3 undecidable manual S 286 20.868 113 0.3 69
IV.SNTG.HHZ. 2020-03-01T15:37:45.20 0.3 undecidable manual P 333 37.5291 50 -0.34 67
IV.SMA1.EHZ. 2020-03-01T15:37:45.42 0.3 undecidable manual P 157 38.9277 50 -0.32 67
IV.PF6.EHE. 2020-03-01T15:37:45.76 0.3 undecidable manual S 10 20.6682 114 -0.13 72
IV.GUMA.HHZ. 2020-03-01T15:37:45.59 0.3 undecidable manual S 51 19.0698 115 0.18 71
IV.SEF1.HNZ. 2020-03-01T15:37:44.01 0.1 undecidable manual P 322 27.0507 108 0.22 93
IV.MMO1.EHZ. 2020-03-01T15:37:44.17 0.1 undecidable manual S 113 15.4734 120 -0.11 97
IV.MTRA.HNZ. 2020-03-01T15:37:44.05 0.6 undecidable manual P 138 29.5482 107 -0.22 46
IV.NRCA.HHZ. 2020-03-01T15:37:44.12 0.3 undecidable manual S 193 13.7751 123 0.34 70
IV.CSP1.EHZ. 2020-03-01T15:37:44.02 0.3 undecidable manual S 16 15.873 120 -0.38 69
IT.MTCL.HGZ. 2020-03-01T15:37:43.64 0.3 undecidable manual S 290 13.1757 124 0.03 74
IV.MF5.EHZ. 2020-03-01T15:37:43.94 0.1 undecidable manual P 81 25.2525 110 0.5 88
IV.SAP2.EHZ. 2020-03-01T15:37:43.62 0.6 undecidable manual P 52 25.5522 110 0.12 48
IV.GUMA.HHZ. 2020-03-01T15:37:42.63 0.1 undecidable manual P 51 19.0698 115 0.32 92
IV.FEMA.HNZ. 2020-03-01T15:37:42.28 0.1 undecidable manual S 276 8.3805 137 -0.07 99
IV.CESI.HHZ. 2020-03-01T15:37:42.66 0.1 undecidable manual P 286 20.868 113 0.03 98
IV.MML1.EHZ. 2020-03-01T15:37:42.86 0.3 undecidable manual P 320 22.9548 112 -0.16 71
IV.RONT.HHZ. 2020-03-01T15:37:42.88 3.0 negative manual Pn -1.93 0
IV.PF6.EHE. 2020-03-01T15:37:42.43 0.1 undecidable manual P 10 20.6682 114 -0.16 95
IV.NRCA.HHZ. 2020-03-01T15:37:41.46 0.1 undecidable manual P 193 13.7751 123 0.09 98
IV.CSP1.EHZ. 2020-03-01T15:37:41.60 0.3 undecidable manual P 16 15.873 120 -0.13 72
IV.MMO1.EHZ. 2020-03-01T15:37:41.61 0.1 undecidable manual P 113 15.4734 120 -0.05 98
IV.MC2.EHZ. 2020-03-01T15:37:41.30 0.3 undecidable manual S 148 5.5944 148 -0.47 69
IT.MTCL.HGZ. 2020-03-01T15:37:41.16 0.3 undecidable manual P 290 13.1757 124 -0.11 73
IV.FEMA.HNZ. 2020-03-01T15:37:40.52 0.1 undecidable manual P 276 8.3805 137 -0.02 100
IV.ATTE.HHZ. 2020-03-01T15:37:40.25 3.0 undecidable manual Sn 2.45 0
IV.MC2.EHZ. 2020-03-01T15:37:39.98 0.1 undecidable manual P 148 5.5944 148 -0.22 96
TV.SF04.EHZ. 2020-03-01T15:37:39.99 3.0 undecidable manual Pg 1.87 0
IV.ATMI.HHZ. 2020-03-01T15:37:35.18 3.0 positive manual P 1.51 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:2.0 0.0010965 0.98 AML other m 2020-03-01T15:37:44.99
IV.NRCA.HHE. ML:2.0 0.001145 0.14 AML other m 2020-03-01T15:37:44.99
IV.CSP1.EHN. ML:1.5 0.00028799999999999995 0.9 AML other m 2020-03-01T15:37:45.59
IV.NRCA.HNN. ML:1.8 0.0006705 0.16 AML other m 2020-03-01T15:37:45.26
IV.CSP1.EHE. ML:1.7 0.00045650000000000004 0.46 AML other m 2020-03-01T15:37:45.41
IV.NRCA.HHN. ML:1.8 0.000728 0.38 AML other m 2020-03-01T15:37:45.26
IV.CESI.HNE. ML:1.8 0.0005171057500000001 0.3584 AML other m 2020-03-01T15:37:46.82
IV.CESI.HHE. ML:1.8 0.0005135 0.34 AML other m 2020-03-01T15:37:46.81
IV.CESI.HNN. ML:1.8 0.000534882 0.3712 AML other m 2020-03-01T15:37:46.77
IV.CESI.HHN. ML:1.8 0.0005035 0.36 AML other m 2020-03-01T15:37:46.78
IV.GUMA.HNE. ML:1.8 0.000492 0.7 AML other m 2020-03-01T15:37:47.44
IV.GUMA.HHN. ML:1.9 0.0006005 1.56 AML other m 2020-03-01T15:37:48.98
IV.GUMA.HNN. ML:1.9 0.0006815 0.94 AML other m 2020-03-01T15:37:50.01
IV.GUMA.HHE. ML:2.0 0.0007190000000000001 1.52 AML other m 2020-03-01T15:37:52.91
IV.SMA1.EHE. ML:1.5 0.00011185000000000001 1.44 AML other m 2020-03-01T15:37:56.05
IV.SMA1.EHN. ML:1.4 0.00009697896999999999 0.64 AML other m 2020-03-01T15:37:58.68
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