Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 25-03-2020 and time 23:35:57 (UTC) in region 3 km NW Ussita (MC)

A magnitude ML 1.4 earthquake occured in region: 3 km NW Ussita (MC), on

  • 25-03-2020 23:35:57 (UTC)
  • 26-03-2020 00:35:57 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9720, 13.1190 at 8 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.

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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 5 1107 1551
Fiordimonte MC 8 202 1753
Fiastra MC 8 559 2312
Acquacanina MC 8 121 2433
Castelsantangelo sul Nera MC 9 281 2714
Bolognola MC 9 142 2856
Monte Cavallo MC 10 145 3001
Pieve Torina MC 10 1458 4459
Pievebovigliana MC 10 866 5325
Preci PG 12 724 6049
Muccia MC 14 915 6964
Sarnano MC 17 3264 10228
Serravalle di Chienti MC 18 1070 11298
Sellano PG 18 1079 12377
Montefortino FM 18 1178 13555
Camerino MC 19 6974 20529
Montemonaco AP 19 604 21133
Cessapalombo MC 19 512 21645
Amandola FM 19 3629 25274
Norcia PG 20 4957 30231

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
59 Km NW of Teramo (54892 inhabitants)
60 Km NE of Terni (111501 inhabitants)
61 Km E of Perugia (166134 inhabitants)
73 Km NW of L'Aquila (69753 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
97 Km S of Fano (60888 inhabitants)
98 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
Reviewed
Rev100 		ML 1.4 2020-03-25
23:35:57		 42.9725 13.119 8 2020-03-25
23:44:17		 Sala Sismica INGV-Roma 77573131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-25 23:35:57 ± 0.08
Latitude 42.9725 ± 0.0036
Longitude 13.1190 ± 0.0049
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77573131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 371
Semi-minor axis of confidence ellipse (meter) 179
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 47
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
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) 0.05126
Epicentral distance of station farthest from the epicenter (degree) 0.35973
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 17
Type of magnitude ML
Reference to an origin 77573131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-25 23:44:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2020-03-25T23:36:10.57 0.3 undecidable manual S 358 39.627 50 -0.14 70
IV.MTRA.EHZ. 2020-03-25T23:36:08.39 0.3 undecidable manual S 137 32.9448 104 -0.43 66
IV.MF5.EHZ. 2020-03-25T23:36:07.77 0.3 undecidable manual S 86 27.75 107 0.69 61
IV.MNTT.EHZ. 2020-03-25T23:36:05.30 0.6 undecidable manual P 75 39.9267 50 0.31 45
IV.SNTG.HHZ. 2020-03-25T23:36:04.12 1.0 undecidable manual P 335 34.5432 50 -0.04 24
IV.PF6.EHE. 2020-03-25T23:36:04.10 0.6 undecidable manual S 18 19.3695 113 -0.25 47
IV.MMO1.EHZ. 2020-03-25T23:36:04.17 0.3 undecidable manual S 116 18.7701 114 0.02 74
IV.EL6.EHZ. 2020-03-25T23:36:04.51 1.0 undecidable manual P 358 39.627 50 -0.43 22
IV.CESI.HHZ. 2020-03-25T23:36:04.12 0.3 undecidable manual S 282 17.7711 115 0.27 71
IV.NRCA.HHZ. 2020-03-25T23:36:03.06 0.3 undecidable manual S 181 15.3735 118 -0.06 74
IV.MTRA.EHZ. 2020-03-25T23:36:03.41 0.6 undecidable manual P 137 32.9448 104 -0.44 44
IV.CSP1.EHZ. 2020-03-25T23:36:02.98 0.6 undecidable manual S 28 14.9739 119 0 50
IV.MF5.EHZ. 2020-03-25T23:36:02.94 1.0 positive manual P 86 27.75 107 0.09 24
IV.MMO1.EHZ. 2020-03-25T23:36:01.09 0.1 positive manual P 116 18.7701 114 -0.06 98
IV.CESI.HHZ. 2020-03-25T23:36:01.13 0.1 positive manual P 282 17.7711 115 0.16 97
IV.PF6.EHE. 2020-03-25T23:36:01.14 0.6 undecidable manual P 18 19.3695 113 -0.12 48
IV.GUMA.HNZ. 2020-03-25T23:36:01.70 0.6 undecidable manual P 60 20.1687 112 0.28 47
IV.CSP1.EHZ. 2020-03-25T23:36:00.50 0.1 positive manual P 28 14.9739 119 0.02 100
IV.NRCA.HHZ. 2020-03-25T23:36:00.68 0.6 undecidable manual P 181 15.3735 118 0.12 49
IV.FDMO.HHZ. 2020-03-25T23:36:00.58 0.3 undecidable manual S 340 7.5813 138 -0.35 71
IT.MTCL.HGE. 2020-03-25T23:35:59.69 0.3 undecidable manual P 284 9.9789 130 0.04 75
IV.FDMO.HHZ. 2020-03-25T23:35:59.23 0.1 negative manual P 340 7.5813 138 -0.07 100
IV.FEMA.HNE. 2020-03-25T23:35:59.18 0.3 undecidable manual P 258 5.6943 145 0.11 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1.2 0.00025388680000000004 0.1152 AML other m 2020-03-25T23:36:00.80
IV.FDMO.HHN. ML:1.3 0.00034207395 0.2048 AML other m 2020-03-25T23:36:00.00
IV.CSP1.EHE. ML:1.4 0.00023045074999999998 0.2432 AML other m 2020-03-25T23:36:03.31
IV.CSP1.EHN. ML:1.1 0.00013014196999999999 0.2816 AML other m 2020-03-25T23:36:04.23
IV.NRCA.HNE. ML:1.4 0.0002584626 0.1408 AML other m 2020-03-25T23:36:05.04
IV.NRCA.HHN. ML:1.4 0.0002457985 0.128 AML other m 2020-03-25T23:36:03.69
IV.NRCA.HNN. ML:1.4 0.0002351847 0.1664 AML other m 2020-03-25T23:36:03.69
IV.NRCA.HHE. ML:1.4 0.00025710095 0.0896 AML other m 2020-03-25T23:36:05.45
IV.CESI.HHE. ML:1.4 0.00021193065 0.1024 AML other m 2020-03-25T23:36:04.37
IV.CESI.HNE. ML:1.3 0.00018958795 0.1152 AML other m 2020-03-25T23:36:04.37
IV.CESI.HNN. ML:1.4 0.00024071155 0.32 AML other m 2020-03-25T23:36:06.56
IV.CESI.HHN. ML:1.4 0.0002000813 0.1664 AML other m 2020-03-25T23:36:04.51
IV.MTRA.HNE. ML:1.3 0.00009612174000000001 0.512 AML other m 2020-03-25T23:36:13.93
IV.MTRA.EHE. ML:1.1 0.000061761069 0.1408 AML other m 2020-03-25T23:36:08.61
IV.EL6.EHN. ML:1.7 0.00017786235 2.4192 AML other m 2020-03-25T23:36:13.20
IV.EL6.EHE. ML:1.7 0.00017710795000000002 1.8688 AML other m 2020-03-25T23:36:16.52
IV.MNTT.EHN. ML:2.2 0.0005589571500000001 1.4592 AML other m 2020-03-25T23:36:18.92
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