Earthquake with magnitude of ML 0.8 on date 23-06-2020 and time 23:51:53 (Italy) in region 4 km E Castelsantangelo sul Nera (MC)

A magnitude ML 0.8 earthquake occured in region: 4 km E Castelsantangelo sul Nera (MC), on

  • 23-06-2020 21:51:53 (UTC)
  • 23-06-2020 23:51:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9, 13.2 at 4 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 4 281 281
Ussita MC 7 444 725
Visso MC 10 1107 1832
Montemonaco AP 10 604 2436
Bolognola MC 11 142 2578
Montegallo AP 12 523 3101
Montefortino FM 13 1178 4279
Preci PG 13 724 5003
Norcia PG 14 4957 9960
Acquacanina MC 15 121 10081
Arquata del Tronto AP 16 1178 11259
Amandola FM 16 3629 14888
Fiastra MC 16 559 15447
Sarnano MC 18 3264 18711
Fiordimonte MC 18 202 18913
Comunanza AP 19 3166 22079
Monte Cavallo MC 20 145 22224

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Foligno (57155 inhabitants)
49 Km NW of Teramo (54892 inhabitants)
58 Km NE of Terni (111501 inhabitants)
63 Km N of L'Aquila (69753 inhabitants)
70 Km E of Perugia (166134 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
88 Km W of Montesilvano (53738 inhabitants)
96 Km NW of Pescara (121014 inhabitants)
100 Km NW of Chieti (51815 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
Reviewed
Rev100
ML 0.8 2020-06-23
21:51:53
42.9 13.2 4 2020-06-23
21:57:39
Sala Sismica INGV-Roma 80459951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-23 21:51:53 ± 0.23
Latitude 42.90 ± 0.01
Longitude 13.20 ± 0.01
Depth (km) 4 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80459951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 750
Semi-minor axis of confidence ellipse (meter) 245
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 48
Circular confidence region, given by single value of horizontal uncertainty (meter) 750
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 105
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.28329
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.4
Num. used stations 4
Type of magnitude ML
Reference to an origin 80459951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-23 21:57:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
MN.KEK.HHZ. 2020-06-23T21:53:40.30 3.0 negative manual Pg 23.790001 0
XK.SELL.HHZ. 2020-06-23T21:53:03.68 3.0 undecidable manual Pn 3.22 0
IX.MNT3.HHZ.02 2020-06-23T21:53:00.46 3.0 undecidable manual Sn -4.76 0
IV.PTRJ.HNZ. 2020-06-23T21:52:51.52 3.0 undecidable manual Sn 1.89 0
IV.MILN.HNZ. 2020-06-23T21:52:50.94 3.0 undecidable manual Pg 16.440001 0
GU.CANO.HHZ. 2020-06-23T21:52:48.14 3.0 undecidable manual Pg 12.6 0
IV.SARZ.HHZ. 2020-06-23T21:52:37.59 3.0 undecidable manual Pn 5.13 0
IV.MAGA.HHZ. 2020-06-23T21:52:24.88 3.0 positive manual Pn -3.56 0
IV.OPPE.HHZ. 2020-06-23T21:52:19.07 3.0 negative manual Pn -1.15 0
IV.SMA1.EHZ. 2020-06-23T21:52:04.47 0.1 undecidable manual S 159 0.2833 97 -0.42 89
IV.MF5.EHZ. 2020-06-23T21:52:02.91 0.1 undecidable manual S 64 0.2113 100 0.76 80
IV.FDMO.HHZ. 2020-06-23T21:52:00.12 0.1 undecidable manual S 330 0.1628 103 -0.21 95
IV.SMA1.EHZ. 2020-06-23T21:51:59.66 0.6 negative manual P 159 0.2833 97 -0.58 42
IV.MF5.EHZ. 2020-06-23T21:51:59.07 0.6 positive manual P 64 0.2113 100 0.41 45
IV.NRCA.HHZ. 2020-06-23T21:51:58.13 0.1 undecidable manual S 225 0.0881 113 0.56 89
IV.FDMO.HHZ. 2020-06-23T21:51:57.31 0.1 undecidable manual P 330 0.1628 103 -0.3 94
IV.MMO1.EHZ. 2020-06-23T21:51:57.50 0.1 undecidable manual S 88 0.0926 112 -0.25 96
IV.NRCA.HHZ. 2020-06-23T21:51:56.28 0.1 positive manual P 225 0.0881 113 0.26 96
IV.MMO1.EHZ. 2020-06-23T21:51:55.96 1.0 positive manual P 88 0.0926 112 -0.16 24
IV.MC2.EHZ. 2020-06-23T21:51:55.36 0.1 undecidable manual S 333 0.018 155 -0.11 100
IV.MC2.EHZ. 2020-06-23T21:51:54.61 1.0 undecidable manual P 333 0.018 155 -0.19 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.3 0.0003205 1.32 AML other m 2020-06-23T21:51:59.89
IV.NRCA.HHN. ML:1.1 0.000218 0.64 AML other m 2020-06-23T21:51:59.67
IV.FDMO.HHN. ML:0.4 2.67E-5 1.38 AML other m 2020-06-23T21:52:01.23
IV.FDMO.HHE. ML:0.4 2.55E-5 0.6 AML other m 2020-06-23T21:52:03.55
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