Earthquake with magnitude of ML 0.8 on date 22-02-2020 and time 02:07:20 (UTC) in region 4 km S Castelsantangelo sul Nera (MC)

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

  • 22-02-2020 02:07:20 (UTC)
  • 22-02-2020 03:07:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.86, 13.15 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 4 281 281
Norcia PG 9 4957 5238
Visso MC 9 1107 6345
Ussita MC 9 444 6789
Preci PG 10 724 7513
Montemonaco AP 15 604 8117
Montegallo AP 15 523 8640
Arquata del Tronto AP 15 1178 9818
Bolognola MC 16 142 9960
Montefortino FM 18 1178 11138
Sellano PG 19 1079 12217
Acquacanina MC 19 121 12338
Monte Cavallo MC 19 145 12483
Cascia PG 20 3217 15700
Fiastra MC 20 559 16259
Cerreto di Spoleto PG 20 1075 17334
Accumoli RI 20 667 18001

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
50 Km W of Teramo (54892 inhabitants)
53 Km NE of Terni (111501 inhabitants)
60 Km NW of L'Aquila (69753 inhabitants)
68 Km E of Perugia (166134 inhabitants)
89 Km SW of Ancona (100861 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
97 Km W of Pescara (121014 inhabitants)
99 Km NE 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 2020-02-22
02:07:20
42.86 13.15 14 2020-02-22
02:16:33
Sala Sismica INGV-Roma 76709731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-22 02:07:20 ± 0.06
Latitude 42.86 ± 0.00
Longitude 13.15 ± 0.00
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 76709731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 405
Semi-minor axis of confidence ellipse (meter) 100
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 250
Circular confidence region, given by single value of horizontal uncertainty (meter) 400
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 82
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.03957
Epicentral distance of station farthest from the epicenter (degree) 0.2716
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.4
Num. used stations 14
Type of magnitude ML
Reference to an origin 76709731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-22 02:16:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SMA1.EHZ. 2020-02-22T02:07:31.24 0.6 undecidable manual S 150 0.2662 98 -0.05 47
IV.LNSS.HHZ. 2020-02-22T02:07:31.45 0.6 undecidable manual S 198 0.2716 98 0.01 48
IV.T1299.HNZ. 2020-02-22T02:07:31.25 0.3 undecidable manual S 157 0.2455 99 0.56 64
IV.CESI.HHZ. 2020-02-22T02:07:30.34 0.6 undecidable manual S 308 0.232 100 0.06 48
IV.CSP1.EHZ. 2020-02-22T02:07:30.42 0.6 undecidable manual S 9 0.2338 100 0.09 47
IV.MTRA.EHZ. 2020-02-22T02:07:29.38 0.6 undecidable manual S 120 0.2068 103 -0.16 47
IT.MTCL.HGZ. 2020-02-22T02:07:28.44 0.3 undecidable manual S 320 0.1745 108 -0.18 71
IV.FDMO.HHZ. 2020-02-22T02:07:28.68 0.3 undecidable manual S 345 0.1817 106 -0.15 71
IV.MMO1.EHZ. 2020-02-22T02:07:27.35 0.3 undecidable manual S 73 0.1322 118 -0.13 72
IV.SMA1.EHZ. 2020-02-22T02:07:26.74 0.3 undecidable manual P 150 0.2662 98 -0.16 69
IV.MC2.EHZ. 2020-02-22T02:07:26.22 0.3 undecidable manual S 27 0.0567 149 0.39 68
IV.LNSS.HHZ. 2020-02-22T02:07:26.80 0.3 undecidable manual P 198 0.2716 98 -0.18 69
IV.T1299.HNZ. 2020-02-22T02:07:26.66 0.6 undecidable manual P 157 0.2455 99 0.11 47
IV.CESI.HHZ. 2020-02-22T02:07:26.26 0.6 undecidable manual P 308 0.232 100 -0.05 48
IV.CSP1.EHZ. 2020-02-22T02:07:26.36 0.3 undecidable manual P 9 0.2338 100 0.02 72
IT.MTCL.HGZ. 2020-02-22T02:07:25.35 0.3 undecidable manual P 320 0.1745 108 0 73
IV.FDMO.HHZ. 2020-02-22T02:07:25.50 0.1 undecidable manual P 345 0.1817 106 0.02 97
IV.NRCA.HHZ. 2020-02-22T02:07:25.28 0.3 undecidable manual S 226 0.0396 157 -0.33 71
IV.MTRA.EHZ. 2020-02-22T02:07:25.68 0.3 undecidable manual P 120 0.2068 103 -0.21 70
IV.MMO1.EHZ. 2020-02-22T02:07:24.74 0.1 undecidable manual P 73 0.1322 118 0.05 97
IV.MC2.EHZ. 2020-02-22T02:07:23.90 0.1 undecidable manual P 27 0.0567 149 0.16 96
IV.NRCA.HHZ. 2020-02-22T02:07:23.58 0.1 undecidable manual P 226 0.0396 157 -0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.1 0.00016783025 0.0608 AML other m 2020-02-22T02:07:25.37
IV.NRCA.HHN. ML:1.3 0.0002526551 0.16 AML other m 2020-02-22T02:07:25.42
IV.NRCA.HNE. ML:1 0.000132305375 0.0608 AML other m 2020-02-22T02:07:25.34
IV.NRCA.HNN. ML:1.3 0.00027066695 0.1504 AML other m 2020-02-22T02:07:25.42
IV.FDMO.HHE. ML:0.2 9.8898385E-6 0.24 AML other m 2020-02-22T02:07:28.90
IV.FDMO.HHN. ML:0.5 1.893821E-5 2.8192 AML other m 2020-02-22T02:07:29.75
IV.CESI.HNE. ML:1.5 0.00016700425 1.7312 AML other m 2020-02-22T02:07:31.03
IV.CESI.HNN. ML:1.5 0.00016855595 2.6 AML other m 2020-02-22T02:07:28.94
IV.CESI.HHE. ML:0.4 1.4308415E-5 0.28 AML other m 2020-02-22T02:07:30.59
IV.CESI.HHN. ML:0.6 1.762437E-5 0.1008 AML other m 2020-02-22T02:07:30.72
IV.CSP1.EHE. ML:0.7 2.672925E-5 0.52 AML other m 2020-02-22T02:07:31.53
IV.CSP1.EHN. ML:0.8 2.9388276E-5 5.6192 AML other m 2020-02-22T02:07:28.72
IV.SMA1.EHE. ML:0.6 2.071568E-5 1.32 AML other m 2020-02-22T02:07:31.79
IV.SMA1.EHN. ML:0.5 1.487829825E-5 0.6208 AML other m 2020-02-22T02:07:31.88
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