Earthquake with magnitude of ML 0.8 on date 06-04-2020 and time 16:31:42 (Italy) in region 8 km SE Castelsantangelo sul Nera (MC)

A magnitude ML 0.8 earthquake occured in region: 8 km SE Castelsantangelo sul Nera (MC), on

  • 06-04-2020 14:31:42 (UTC)
  • 06-04-2020 16:31:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.83, 13.19 at 14 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.

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 8 281 281
Norcia PG 9 4957 5238
Arquata del Tronto AP 11 1178 6416
Montegallo AP 12 523 6939
Preci PG 14 724 7663
Ussita MC 14 444 8107
Montemonaco AP 14 604 8711
Visso MC 14 1107 9818
Accumoli RI 16 667 10485
Montefortino FM 18 1178 11663
Bolognola MC 19 142 11805
Cascia PG 19 3217 15022
Acquasanta Terme AP 19 2916 17938

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Foligno (57155 inhabitants)
46 Km W of Teramo (54892 inhabitants)
54 Km NE of Terni (111501 inhabitants)
56 Km NW of L'Aquila (69753 inhabitants)
72 Km E of Perugia (166134 inhabitants)
86 Km W of Montesilvano (53738 inhabitants)
92 Km SW of Ancona (100861 inhabitants)
93 Km W of Pescara (121014 inhabitants)
96 Km NW of Chieti (51815 inhabitants)
100 Km NE of Guidonia Montecelio (88673 inhabitants)
100 Km E of Viterbo (67173 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 0.8 2020-04-06
14:31:42
42.83 13.19 14 2020-04-06
14:42:43
Sala Sismica INGV-Roma 77952961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-06 14:31:42 ± 0.13
Latitude 42.83 ± 0.01
Longitude 13.19 ± 0.01
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77952961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 529
Semi-minor axis of confidence ellipse (meter) 301
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 348
Circular confidence region, given by single value of horizontal uncertainty (meter) 530
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 221
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.27429
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 77952961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-06 14:42:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2020-04-06T14:31:52.77 0.3 undecidable manual S 2 0.2635 99 0.05 73
IV.FDMO.HHZ. 2020-04-06T14:31:51.38 0.3 undecidable manual S 340 0.2212 102 -0.12 71
IT.MTCL.HGE. 2020-04-06T14:31:51.21 0.3 undecidable manual S 320 0.2167 103 -0.17 71
IV.TERO.HHZ. 2020-04-06T14:31:50.23 3.0 undecidable manual P 0 0
IV.MMO1.EHZ. 2020-04-06T14:31:48.48 0.3 undecidable manual S 54 0.1214 122 -0.27 72
IV.MC2.EHZ. 2020-04-06T14:31:48.00 0.3 undecidable manual S 359 0.0827 137 0.14 73
IV.CESI.HHZ. 2020-04-06T14:31:48.72 0.3 undecidable manual P 310 0.2743 98 0.17 71
IV.CSP1.EHZ. 2020-04-06T14:31:48.30 0.3 undecidable manual P 2 0.2635 99 -0.06 72
IV.NRCA.HNE. 2020-04-06T14:31:47.26 0.1 undecidable manual S 275 0.0567 149 -0.14 100
IV.FDMO.HHZ. 2020-04-06T14:31:47.71 0.3 undecidable manual P 340 0.2212 102 0.05 73
IT.MTCL.HGE. 2020-04-06T14:31:47.50 0.1 undecidable manual P 320 0.2167 103 -0.09 96
IV.MMO1.EHZ. 2020-04-06T14:31:46.06 0.1 undecidable manual P 54 0.1214 122 -0.01 100
IV.MC2.EHZ. 2020-04-06T14:31:45.89 0.3 undecidable manual P 359 0.0827 137 0.33 70
IV.NRCA.HNE. 2020-04-06T14:31:45.45 0.3 undecidable manual P 275 0.0567 149 0.16 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0.6 1.773228E-5 0.1792 AML other m 2020-04-06T14:31:51.48
IV.FDMO.HHE. ML:0.4 1.3789815E-5 0.16 AML other m 2020-04-06T14:31:52.10
IV.CSP1.EHN. ML:1 4.37833585E-5 1.4592 AML other m 2020-04-06T14:31:52.54
IV.CSP1.EHE. ML:0.8 3.0319175E-5 1.5808 AML other m 2020-04-06T14:31:52.90
IV.CESI.HHE. ML:0.5 1.571742E-5 0.3008 AML other m 2020-04-06T14:32:01.47
IV.CESI.HNN. ML:1.5 0.000136312585 0.5824 AML other m 2020-04-06T14:31:52.95
IV.CESI.HHN. ML:0.6 2.002778E-5 0.2176 AML other m 2020-04-06T14:31:53.87
IV.CESI.HNE. ML:1.4 9.9536455E-5 0.3328 AML other m 2020-04-06T14:31:53.51
IV.TERO.HHE. ML:0.7 1.289835E-5 0.1216 AML other m 2020-04-06T14:31:56.18
IV.TERO.HHN. ML:0.8 2.1686435E-5 0.1216 AML other m 2020-04-06T14:31:56.14
IV.TERO.HNE. ML:1.5 9.922973E-5 0.6848 AML other m 2020-04-06T14:31:56.07
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download