Earthquake with magnitude of ML 0.8 on date 01-03-2021 and time 22:11:06 (Italy) in region 7 km S Castelsantangelo sul Nera (MC)

A magnitude ML 0.8 earthquake occured in region: 7 km S Castelsantangelo sul Nera (MC), on

  • 01-03-2021 21:11:06 (UTC)
  • 01-03-2021 22:11:06 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.84, 13.16 at 9 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 7 281 281
Norcia PG 7 4957 5238
Preci PG 11 724 5962
Visso MC 12 1107 7069
Ussita MC 12 444 7513
Arquata del Tronto AP 14 1178 8691
Montegallo AP 15 523 9214
Montemonaco AP 16 604 9818
Accumoli RI 17 667 10485
Cascia PG 18 3217 13702
Bolognola MC 19 142 13844
Montefortino FM 19 1178 15022
Cerreto di Spoleto PG 20 1075 16097
Sellano PG 20 1079 17176

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Foligno (57155 inhabitants)
49 Km W of Teramo (54892 inhabitants)
52 Km NE of Terni (111501 inhabitants)
57 Km NW of L'Aquila (69753 inhabitants)
69 Km E of Perugia (166134 inhabitants)
89 Km W of Montesilvano (53738 inhabitants)
92 Km SW of Ancona (100861 inhabitants)
96 Km W of Pescara (121014 inhabitants)
98 Km E of Viterbo (67173 inhabitants)
99 Km NW of Chieti (51815 inhabitants)
99 Km NE of Guidonia Montecelio (88673 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 2021-03-01
21:11:06
42.84 13.16 9 2021-03-01
21:16:24
Sala Sismica INGV-Roma 87610151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-01 21:11:06 ± 0.04
Latitude 42.84 ± 0.00
Longitude 13.16 ± 0.00
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87610151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 250
Semi-minor axis of confidence ellipse (meter) 40
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 247
Circular confidence region, given by single value of horizontal uncertainty (meter) 250
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 51
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.03148
Epicentral distance of station farthest from the epicenter (degree) 0.49373
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 87610151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-01 21:16:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SMA1.EHZ. 2021-03-01T21:11:16.40 0.6 undecidable manual S 147 0.2446 108 -0.26 47
IV.CESI.HHZ. 2021-03-01T21:11:16.70 0.6 undecidable manual S 312 0.2491 108 -0.15 48
IV.EL6.EHZ. 2021-03-01T21:11:16.72 0.1 undecidable manual P 355 0.4937 50 -0.2 91
IV.LNSS.HHZ. 2021-03-01T21:11:16.80 0.6 undecidable manual S 200 0.2491 108 -0.03 49
IV.FDMO.HHZ. 2021-03-01T21:11:15.50 0.6 undecidable manual S 346 0.2059 111 0.23 48
IV.TERO.HHZ. 2021-03-01T21:11:15.36 0.6 undecidable manual P 123 0.3921 50 0.18 46
IV.RM33.EHZ. 2021-03-01T21:11:14.37 1.0 undecidable manual P 173 0.3301 50 0.25 23
IV.MTRA.EHZ. 2021-03-01T21:11:14.60 0.6 undecidable manual S 114 0.1934 112 -0.21 48
IT.MTCL.HGZ. 2021-03-01T21:11:14.60 0.6 undecidable manual S 324 0.1952 112 -0.27 47
IV.FEMA.HNZ. 2021-03-01T21:11:13.20 0.6 undecidable manual S 328 0.1475 118 -0.03 50
IV.MF5.EHZ. 2021-03-01T21:11:13.24 1.0 negative manual P 56 0.268 107 0.25 23
IV.LNSS.HHZ. 2021-03-01T21:11:12.59 0.1 undecidable manual P 200 0.2491 108 0.02 99
IV.MMO1.EHZ. 2021-03-01T21:11:12.80 0.6 undecidable manual S 63 0.1394 120 -0.16 49
IV.SMA1.EHZ. 2021-03-01T21:11:12.64 0.6 positive manual P 147 0.2446 108 0.16 48
IV.GAVE.EHZ. 2021-03-01T21:11:12.47 0.1 undecidable manual P 233 0.241 108 0.07 98
IV.CESI.HHZ. 2021-03-01T21:11:12.66 0.6 undecidable manual P 312 0.2491 108 0.07 49
IV.CSP1.EHZ. 2021-03-01T21:11:12.73 1.0 positive manual P 8 0.2572 107 -0.03 25
IV.FDMO.HHZ. 2021-03-01T21:11:11.70 1.0 undecidable manual P 346 0.2059 111 0.03 25
IT.MTCL.HGZ. 2021-03-01T21:11:11.46 0.1 undecidable manual P 324 0.1952 112 0.02 100
IV.MTRA.EHZ. 2021-03-01T21:11:11.46 1.0 positive manual P 114 0.1934 112 0.05 25
IV.MC2.EHZ. 2021-03-01T21:11:11.30 0.6 undecidable manual S 18 0.0782 135 0.23 49
IV.FEMA.HNZ. 2021-03-01T21:11:10.44 0.1 undecidable manual P 328 0.1475 118 -0.06 100
IV.MMO1.EHZ. 2021-03-01T21:11:10.30 1.0 undecidable manual P 63 0.1394 120 -0.04 25
IV.NRCA.HHZ. 2021-03-01T21:11:09.90 0.6 undecidable manual S 264 0.0315 159 -0.16 50
IV.MC2.EHZ. 2021-03-01T21:11:09.37 0.1 undecidable manual P 18 0.0782 135 0.12 100
IV.NRCA.HHZ. 2021-03-01T21:11:08.87 0.6 undecidable manual P 264 0.0315 159 0.2 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:0 0.0007175 1.84 AML other m 2021-03-01T21:11:10.07
IV.NRCA.HHN. ML:0 0.000571 0.16 AML other m 2021-03-01T21:11:10.11
IV.MTRA.EHN. ML:0.9 5.335E-5 0.3 AML other m 2021-03-01T21:11:15.24
IV.MTRA.EHE. ML:0.8 5.18E-5 0.42 AML other m 2021-03-01T21:11:16.34
IV.FDMO.HHN. ML:0.6 2.65E-5 0.22 AML other m 2021-03-01T21:11:16.29
IV.CESI.HHN. ML:0.9 4.675E-5 0.34 AML other m 2021-03-01T21:11:17.23
IV.CSP1.EHE. ML:1.2 8.24E-5 0.96 AML other m 2021-03-01T21:11:17.39
IV.CSP1.EHN. ML:1.3 9.665E-5 1.14 AML other m 2021-03-01T21:11:17.06
IV.FDMO.HHE. ML:0.5 1.865E-5 0.54 AML other m 2021-03-01T21:11:17.77
IV.CESI.HHE. ML:0.8 2.83E-5 0.86 AML other m 2021-03-01T21:11:18.52
IV.SMA1.EHE. ML:0.7 3.06E-5 0.46 AML other m 2021-03-01T21:11:20.44
IV.SMA1.EHN. ML:0.7 2.33E-5 0.44 AML other m 2021-03-01T21:11:20.58
IV.TERO.HHE. ML:0.8 2.13E-5 0.34 AML other m 2021-03-01T21:11:21.52
IV.TERO.HHN. ML:1 3.145E-5 0.42 AML other m 2021-03-01T21:11:23.95
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