Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 04-04-2020 and time 09:29:55 (UTC) in region 5 km SE Castelsantangelo sul Nera (MC)

A magnitude ML 0.8 earthquake occured in region: 5 km SE Castelsantangelo sul Nera (MC), on

  • 04-04-2020 09:29:55 (UTC)
  • 04-04-2020 11:29:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8600, 13.1890 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
Castelsantangelo sul Nera MC 5 281 281
Ussita MC 10 444 725
Norcia PG 11 4957 5682
Visso MC 11 1107 6789
Montegallo AP 12 523 7312
Montemonaco AP 12 604 7916
Preci PG 12 724 8640
Arquata del Tronto AP 13 1178 9818
Bolognola MC 15 142 9960
Montefortino FM 16 1178 11138
Accumoli RI 19 667 11805
Acquacanina MC 19 121 11926
Amandola FM 19 3629 15555
Fiastra MC 20 559 16114

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Foligno (57155 inhabitants)
48 Km W of Teramo (54892 inhabitants)
55 Km NE of Terni (111501 inhabitants)
59 Km N of L'Aquila (69753 inhabitants)
71 Km E of Perugia (166134 inhabitants)
87 Km W of Montesilvano (53738 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
95 Km W of Pescara (121014 inhabitants)
98 Km NW of Chieti (51815 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 0.8 2020-04-04
09:29:55		 42.8598 13.1892 8 2020-04-04
09:46:38		 Sala Sismica INGV-Roma 77865481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-04 09:29:55 ± 0.16
Latitude 42.8598 ± 0.0045
Longitude 13.1892 ± 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 77865481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 499
Semi-minor axis of confidence ellipse (meter) 265
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 194
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 236
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.08
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.25361
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 3
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.4
Num. used stations 7
Type of magnitude ML
Reference to an origin 77865481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-04 09:46:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PETRA.HHZ. 2020-04-04T09:31:46.61 3.0 undecidable manual Sn -5.2 0
IV.ZONE.HHZ. 2020-04-04T09:31:46.45 3.0 undecidable manual Sg 8.35 0
SL.KOGS.BHZ. 2020-04-04T09:31:45.97 3.0 undecidable manual Sn -6.23 0
CR.ZAG.BHZ. 2020-04-04T09:31:43.66 3.0 undecidable manual Sg 6.82 0
GU.GORR.HHZ. 2020-04-04T09:31:27.08 3.0 undecidable manual Sn -0.38 0
IV.RAVA.EHZ. 2020-04-04T09:31:12.09 3.0 undecidable manual Sg 4.07 0
IV.ZCCA.HHZ. 2020-04-04T09:31:11.15 3.0 undecidable manual Sg 9.59 0
IV.FERC.HNZ. 2020-04-04T09:31:06.23 3.0 undecidable manual Pg 8.86 0
IV.EUCT.HNZ. 2020-04-04T09:31:03.85 3.0 undecidable manual Pg 12.7 0
IV.PETRA.HHZ. 2020-04-04T09:30:51.85 3.0 undecidable manual Pn -6.58 0
IX.MNT3.HHZ.02 2020-04-04T09:30:50.61 3.0 undecidable manual Sn 0.86 0
IV.NDIM.HNZ. 2020-04-04T09:30:45.97 3.0 negative manual Pg 9.44 0
IV.PIPA.HHZ. 2020-04-04T09:30:45.29 3.0 positive manual Pn -4.8 0
IV.BRSN.EHZ. 2020-04-04T09:30:42.87 3.0 undecidable manual Sn -6.99 0
IV.FIR.HHZ. 2020-04-04T09:30:41.58 3.0 undecidable manual Sn -6.34 0
IV.TDS.HHZ. 2020-04-04T09:30:40.69 3.0 undecidable manual Pn -4.24 0
IV.SALB.HHZ. 2020-04-04T09:30:39.79 3.0 undecidable manual Pn -2.96 0
IV.RIBO.EHZ.01 2020-04-04T09:30:38.59 3.0 undecidable manual Sn -1.86 0
IV.VITU.HHZ. 2020-04-04T09:30:34.15 3.0 undecidable manual Sn -4.66 0
IX.STN3.HHZ.02 2020-04-04T09:30:32.59 3.0 positive manual Pn 1.36 0
OT.OT05.EHZ. 2020-04-04T09:30:26.61 3.0 undecidable manual Pg 4.72 0
IV.CRMI.HHZ. 2020-04-04T09:30:21.78 3.0 negative manual Pn -2.99 0
IV.MCRV.HHZ. 2020-04-04T09:30:21.10 3.0 undecidable manual Pn -4.15 0
IV.PAOL.HHZ. 2020-04-04T09:30:20.71 3.0 negative manual Pg 2.08 0
IV.RMP.HHZ. 2020-04-04T09:30:16.76 3.0 undecidable manual Sn 2.32 0
IV.TERO.HHZ. 2020-04-04T09:30:09.47 3.0 undecidable manual S 0
IT.VNF1.HGZ. 2020-04-04T09:30:08.85 3.0 positive manual Pn -1.65 0
IV.TERO.HHZ. 2020-04-04T09:30:07.94 3.0 undecidable manual P 0
IV.CESI.HHZ. 2020-04-04T09:30:06.17 0.6 undecidable manual S 305 28.1496 106 0.07 48
IV.POFI.HHZ. 2020-04-04T09:30:06.44 3.0 undecidable manual P 1 0
IV.CSP1.EHZ. 2020-04-04T09:30:05.29 0.3 undecidable manual S 3 25.752 107 -0.01 74
IV.CSP1.EHZ. 2020-04-04T09:30:01.37 0.3 undecidable manual P 3 25.752 107 0.02 74
IV.CESI.HHZ. 2020-04-04T09:30:01.68 0.6 undecidable manual P 305 28.1496 106 -0.13 48
IV.FDMO.HHZ. 2020-04-04T09:30:00.64 3.0 undecidable manual P -2.68 0
IV.MMO1.EHZ. 2020-04-04T09:30:00.90 0.3 undecidable manual S 69 11.9769 123 -0.04 75
IV.MMO1.EHZ. 2020-04-04T09:29:58.88 0.1 undecidable manual P 69 11.9769 123 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0.5 0.000024550915 0.1984 AML other m 2020-04-04T09:30:04.22
IV.CSP1.EHN. ML:0.4 0.000017000984700000003 0.9408 AML other m 2020-04-04T09:30:19.56
IV.CSP1.EHE. ML:1.0 0.000061388765 1.504 AML other m 2020-04-04T09:30:12.20
IV.CESI.HHE. ML:0.6 0.000018462924999999997 0.16 AML other m 2020-04-04T09:30:08.51
IV.CESI.HNN. ML:1.6 0.0001912126 1.0112 AML other m 2020-04-04T09:30:01.82
IV.CESI.HHN. ML:0.8 0.00003238493 0.1984 AML other m 2020-04-04T09:30:07.61
IV.CESI.HNE. ML:1.4 0.00012204493 0.6144 AML other m 2020-04-04T09:30:04.89
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
Waveforms Seismic signals in miniseed + resp format not available