Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 07-02-2021 and time 03:13:15 (Italy) in region 7 km SE Castelsantangelo sul Nera (MC)

A magnitude ML 1.1 earthquake occured in region: 7 km SE Castelsantangelo sul Nera (MC), on

  • 07-02-2021 02:13:15 (UTC)
  • 07-02-2021 03:13:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8560, 13.2130 at 10 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 7 281 281
Montegallo AP 10 523 804
Montemonaco AP 11 604 1408
Arquata del Tronto AP 11 1178 2586
Ussita MC 12 444 3030
Norcia PG 12 4957 7987
Visso MC 13 1107 9094
Montefortino FM 14 1178 10272
Preci PG 14 724 10996
Bolognola MC 16 142 11138
Accumoli RI 18 667 11805
Amandola FM 18 3629 15434
Acquasanta Terme AP 19 2916 18350
Acquacanina MC 20 121 18471

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km E of Foligno (57155 inhabitants)
46 Km W of Teramo (54892 inhabitants)
57 Km NE of Terni (111501 inhabitants)
58 Km N of L'Aquila (69753 inhabitants)
73 Km E of Perugia (166134 inhabitants)
85 Km W of Montesilvano (53738 inhabitants)
88 Km S of Ancona (100861 inhabitants)
93 Km W of Pescara (121014 inhabitants)
96 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 1.1 2021-02-07
02:13:15		 42.8557 13.2133 10 2021-02-07
02:21:50		 Sala Sismica INGV-Roma 86895431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-07 02:13:15 ± 0.07
Latitude 42.8557 ± 0.0036
Longitude 13.2133 ± 0.0049
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86895431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 459
Semi-minor axis of confidence ellipse (meter) 247
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 45
Circular confidence region, given by single value of horizontal uncertainty (meter) 460.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.27070
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 86895431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-07 02:21:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESI.HHZ. 2021-02-07T02:13:26.69 0.3 undecidable manual S 304 30.0477 50 0.16 72
IV.T1299.EHZ. 2021-02-07T02:13:25.49 0.3 undecidable manual S 167 25.1526 112 0.26 71
IV.SMA1.EHZ. 2021-02-07T02:13:25.29 0.3 undecidable manual S 158 26.8509 50 -0.4 68
IV.MF5.EHZ. 2021-02-07T02:13:25.75 0.3 undecidable manual S 54 24.8529 112 0.64 64
IV.FDMO.HHZ. 2021-02-07T02:13:24.11 0.3 undecidable manual S 333 22.5552 114 -0.27 71
IT.MTCL.HGZ. 2021-02-07T02:13:24.33 0.3 undecidable manual S 312 23.1546 113 -0.25 71
IV.MNTT.EHZ. 2021-02-07T02:13:24.11 3.0 positive manual P 0.74 0
IV.TERO.HHZ. 2021-02-07T02:13:23.54 3.0 positive manual P -0.18 0
IV.CESI.HHZ. 2021-02-07T02:13:22.10 0.3 undecidable manual P 304 30.0477 50 0.09 73
IV.MTRA.EHZ. 2021-02-07T02:13:22.97 0.3 undecidable manual S 126 18.5703 118 -0.16 73
IV.MF5.EHZ. 2021-02-07T02:13:21.49 0.3 undecidable manual P 54 24.8529 112 0.31 70
IV.T1299.EHZ. 2021-02-07T02:13:21.44 0.3 undecidable manual P 167 25.1526 112 0.18 72
IV.SMA1.EHZ. 2021-02-07T02:13:21.39 0.3 undecidable manual P 158 26.8509 50 -0.13 72
IV.MMO1.EHZ. 2021-02-07T02:13:20.34 0.3 undecidable manual S 62 10.3785 134 -0.5 69
IV.FDMO.HHZ. 2021-02-07T02:13:20.71 0.3 undecidable manual P 333 22.5552 114 -0.05 74
IV.NRCA.HHZ. 2021-02-07T02:13:20.42 0.3 undecidable manual S 253 8.3805 140 0.05 76
IT.MTCL.HGZ. 2021-02-07T02:13:20.90 0.3 undecidable manual P 312 23.1546 113 0.02 75
IV.MTRA.EHZ. 2021-02-07T02:13:19.93 0.3 undecidable manual P 126 18.5703 118 -0.11 74
IV.MC2.EHZ. 2021-02-07T02:13:19.84 0.3 undecidable manual S 342 6.4935 147 -0.13 75
IV.NRCA.HHZ. 2021-02-07T02:13:18.70 0.3 undecidable manual P 253 8.3805 140 0.25 73
IV.MMO1.EHZ. 2021-02-07T02:13:18.62 0.1 undecidable manual P 62 10.3785 134 -0.1 100
IV.MC2.EHZ. 2021-02-07T02:13:18.43 0.3 negative manual P 342 6.4935 147 0.21 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.3 0.0002577988 0.0992 AML other m 2021-02-07T02:13:20.71
IV.NRCA.HHN. ML:1.1 0.00016649999999999998 1.12 AML other m 2021-02-07T02:13:21.14
IV.FDMO.HHE. ML:0.7 0.000030617696 0.12 AML other m 2021-02-07T02:13:24.45
IV.FDMO.HHN. ML:0.8 0.000039705965 0.12 AML other m 2021-02-07T02:13:24.41
IV.NRCA.HNE. ML:1.2 0.00023813830000000004 0.0992 AML other m 2021-02-07T02:13:20.76
IV.NRCA.HNN. ML:1.0 0.00014816615499999998 0.1104 AML other m 2021-02-07T02:13:21.19
IV.MTRA.EHE. ML:1.1 0.00009587972 0.1216 AML other m 2021-02-07T02:13:23.32
IV.MTRA.EHN. ML:1.0 0.00008725835 0.2608 AML other m 2021-02-07T02:13:24.38
IV.MTRA.HNE. ML:1.3 0.000162859535 0.4016 AML other m 2021-02-07T02:13:19.28
IV.MTRA.HNN. ML:1.3 0.00014505781000000002 0.3792 AML other m 2021-02-07T02:13:22.64
IV.SMA1.EHE. ML:0.8 0.00003406424 0.56 AML other m 2021-02-07T02:13:32.48
IV.SMA1.EHN. ML:0.7 0.000022967865000000002 0.2016 AML other m 2021-02-07T02:13:25.61
IV.CESI.HHE. ML:0.7 0.000026600462 0.2192 AML other m 2021-02-07T02:13:26.91
IV.CESI.HHN. ML:1.0 0.000045556425 0.2592 AML other m 2021-02-07T02:13:26.90
IV.CESI.HNE. ML:1.4 0.00013699915 0.8208 AML other m 2021-02-07T02:13:23.90
IV.CESI.HNN. ML:1.8 0.0003398479 0.3104 AML other m 2021-02-07T02:13:28.11
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