Earthquake with magnitude of ML 1.4 on date 26-01-2021 and time 07:03:44 (UTC) in region 3 km W Castelsantangelo sul Nera (MC)

A magnitude ML 1.4 earthquake occured in region: 3 km W Castelsantangelo sul Nera (MC), on

  • 26-01-2021 07:03:44 (UTC)
  • 26-01-2021 08:03:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.88, 13.12 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.

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 3 281 281
Visso MC 6 1107 1388
Preci PG 6 724 2112
Ussita MC 7 444 2556
Norcia PG 10 4957 7513
Sellano PG 15 1079 8592
Bolognola MC 15 142 8734
Monte Cavallo MC 16 145 8879
Acquacanina MC 17 121 9000
Montemonaco AP 17 604 9604
Fiordimonte MC 17 202 9806
Fiastra MC 18 559 10365
Cerreto di Spoleto PG 18 1075 11440
Montegallo AP 18 523 11963
Pieve Torina MC 19 1458 13421
Arquata del Tronto AP 19 1178 14599
Montefortino FM 20 1178 15777
Cascia PG 20 3217 18994

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
52 Km NE of Terni (111501 inhabitants)
54 Km W of Teramo (54892 inhabitants)
63 Km NW of L'Aquila (69753 inhabitants)
64 Km E of Perugia (166134 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
94 Km W of Montesilvano (53738 inhabitants)
98 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
Reviewed
Rev100
ML 1.4 2021-01-26
07:03:44
42.88 13.12 10 2021-01-26
07:25:19
Sala Sismica INGV-Roma 86588361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-26 07:03:44 ± 0.03
Latitude 42.88 ± 0.00
Longitude 13.12 ± 0.00
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86588361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 238
Semi-minor axis of confidence ellipse (meter) 205
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 38
Circular confidence region, given by single value of horizontal uncertainty (meter) 240
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 20
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
Epicentral distance of station farthest from the epicenter (degree) 0.40829
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 29
Type of magnitude ML
Reference to an origin 86588361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-26 07:25:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LPEL.HHZ. 2021-01-26T07:04:06.17 3.0 undecidable manual P 0.24 0
IV.ASSB.HHZ. 2021-01-26T07:03:57.89 0.6 undecidable manual S 296 0.3714 50 0.14 47
IV.LNSS.HHZ. 2021-01-26T07:03:55.09 0.3 undecidable manual S 191 0.2851 50 -0.1 73
IV.GAVE.EHZ. 2021-01-26T07:03:54.12 0.3 undecidable manual S 221 0.2509 50 -0.05 74
IV.CSP1.EHZ. 2021-01-26T07:03:53.07 0.3 undecidable manual S 17 0.2185 50 -0.15 73
IV.MTRA.EHZ. 2021-01-26T07:03:53.73 0.3 undecidable manual S 121 0.2401 50 -0.13 73
IV.MOMA.HHZ. 2021-01-26T07:03:53.00 1.0 undecidable manual P 259 0.4083 50 0.38 22
IV.CESI.HHZ. 2021-01-26T07:03:52.44 0.3 undecidable manual S 308 0.1979 115 -0.12 74
IV.ASSB.HHZ. 2021-01-26T07:03:51.96 0.1 positive manual P 296 0.3714 50 -0.03 96
IV.MMO1.EHZ. 2021-01-26T07:03:51.11 0.3 undecidable manual S 84 0.1547 121 0.03 75
IV.FDMO.HHZ. 2021-01-26T07:03:50.93 0.6 undecidable manual S 352 0.1556 121 -0.18 49
IV.GAVE.EHZ. 2021-01-26T07:03:50.04 0.6 positive manual P 221 0.2509 50 0.11 49
IV.LNSS.HHZ. 2021-01-26T07:03:50.65 1.0 negative manual P 191 0.2851 50 0.14 24
IV.MF5.EHZ. 2021-01-26T07:03:50.71 1.0 positive manual P 67 0.2716 50 0.43 23
IV.MTRA.EHZ. 2021-01-26T07:03:49.72 0.1 positive manual P 121 0.2401 50 -0.03 99
IV.CESI.HHZ. 2021-01-26T07:03:49.06 0.1 positive manual P 308 0.1979 115 0.07 99
IV.CSP1.EHZ. 2021-01-26T07:03:49.35 1.0 negative manual P 17 0.2185 50 -0.03 25
IV.MMO1.EHZ. 2021-01-26T07:03:48.25 0.1 positive manual P 84 0.1547 121 0.11 99
IV.FDMO.HHZ. 2021-01-26T07:03:48.26 0.6 positive manual P 352 0.1556 121 0.1 50
IV.NRCA.HNZ. 2021-01-26T07:03:47.95 0.3 undecidable manual S 183 0.0486 152 -0.24 74
IV.NRCA.HNZ. 2021-01-26T07:03:46.63 0.1 undecidable manual P 183 0.0486 152 0.16 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:1.9 0.00126 0.16 AML other m 2021-01-26T07:03:48.03
IV.NRCA.HHN. ML:1.9 0.001333586 0.1376 AML other m 2021-01-26T07:03:48.04
IV.NRCA.HHE. ML:1.8 0.0009445139 0.1376 AML other m 2021-01-26T07:03:48.94
IV.NRCA.HNE. ML:1.8 0.00093341005 0.128 AML other m 2021-01-26T07:03:48.94
IV.FDMO.HHE. ML:0.9 6.6118145E-5 0.24 AML other m 2021-01-26T07:03:52.32
IV.FDMO.HHN. ML:0.9 6.5174975E-5 0.1792 AML other m 2021-01-26T07:03:53.75
IV.CESI.HHN. ML:1.7 0.0003085 0.26 AML other m 2021-01-26T07:03:52.89
IV.CESI.HHE. ML:1.3 0.000132310885 0.08 AML other m 2021-01-26T07:03:52.77
IV.CSP1.EHN. ML:1.3 0.00013108233 0.2592 AML other m 2021-01-26T07:03:53.80
IV.CSP1.EHE. ML:1.4 0.00014065275 0.24 AML other m 2021-01-26T07:03:53.88
IV.CESI.HNE. ML:1.3 0.00012191902 0.2112 AML other m 2021-01-26T07:03:52.60
IV.CESI.HNN. ML:1.7 0.000331258 0.2496 AML other m 2021-01-26T07:03:52.76
IV.MTRA.EHE. ML:1.2 8.977731E-5 0.1184 AML other m 2021-01-26T07:03:54.33
IV.MTRA.EHN. ML:1.2 9.0938E-5 0.1984 AML other m 2021-01-26T07:03:54.00
IV.MTRA.HNE. ML:1.3 0.00011344514 0.5408 AML other m 2021-01-26T07:03:52.57
IV.MTRA.HNN. ML:1.3 0.0001142084 0.16 AML other m 2021-01-26T07:03:55.23
IV.GAVE.EHE. ML:1.4 0.0001437967 0.1792 AML other m 2021-01-26T07:03:55.08
IV.GAVE.EHN. ML:1.3 0.000103072349 0.24 AML other m 2021-01-26T07:03:54.51
IV.GAVE.HNE. ML:1.4 0.0001438590605 0.192 AML other m 2021-01-26T07:03:55.17
IV.GAVE.HNN. ML:1.5 0.000159845805 0.48 AML other m 2021-01-26T07:03:55.46
IV.LNSS.HHE. ML:1.2 8.155744E-5 0.1216 AML other m 2021-01-26T07:03:55.82
IV.LNSS.HHN. ML:1.1 5.828721E-5 0.1216 AML other m 2021-01-26T07:03:56.73
IV.LNSS.HNE. ML:1.5 0.0001462711 0.6176 AML other m 2021-01-26T07:03:57.78
IV.LNSS.HNN. ML:1.5 0.000144838165 0.928 AML other m 2021-01-26T07:04:06.20
IV.MF5.EHE. ML:1.5 0.0001520869 1.5424 AML other m 2021-01-26T07:04:00.99
IV.MF5.EHN. ML:1.5 0.00015627615 1.8592 AML other m 2021-01-26T07:03:52.48
IV.ASSB.HHE. ML:1.3 6.8010985E-5 0.1376 AML other m 2021-01-26T07:03:58.23
IV.ASSB.HHN. ML:1.1 3.846938E-5 0.0992 AML other m 2021-01-26T07:03:58.42
IV.MOMA.HHE. ML:1.1 3.4413875E-5 0.1408 AML other m 2021-01-26T07:04:00.75
IV.LPEL.HHE. ML:2 5.90016645E-5 0.1408 AML other m 2021-01-26T07:04:13.32
IV.LPEL.HHN. ML:1.9 5.0925415E-5 0.1984 AML other m 2021-01-26T07:04:16.31
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