Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 08-01-2021 and time 00:18:55 (Italy) in region Fiastra (MC)

A magnitude ML 0.7 earthquake occured in region: Fiastra (MC), on

  • 07-01-2021 23:18:55 (UTC)
  • 08-01-2021 00:18:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.03, 13.15 at 13 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
Fiastra MC 1 559 559
Acquacanina MC 2 121 680
Fiordimonte MC 5 202 882
Pievebovigliana MC 7 866 1748
Bolognola MC 7 142 1890
Pieve Torina MC 9 1458 3348
Ussita MC 10 444 3792
Muccia MC 11 915 4707
Sarnano MC 12 3264 7971
Cessapalombo MC 12 512 8483
Visso MC 12 1107 9590
Monte Cavallo MC 13 145 9735
Caldarola MC 13 1823 11558
Camerino MC 14 6974 18532
Camporotondo di Fiastrone MC 14 563 19095
Castelsantangelo sul Nera MC 15 281 19376
Gualdo MC 16 815 20191
San Ginesio MC 16 3498 23689
Belforte del Chienti MC 16 1886 25575
Serrapetrona MC 16 966 26541
Serravalle di Chienti MC 17 1070 27611
Amandola FM 17 3629 31240
Montefortino FM 18 1178 32418
Preci PG 19 724 33142

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
61 Km NW of Teramo (54892 inhabitants)
63 Km E of Perugia (166134 inhabitants)
67 Km NE of Terni (111501 inhabitants)
72 Km SW of Ancona (100861 inhabitants)
78 Km N of L'Aquila (69753 inhabitants)
91 Km S of Fano (60888 inhabitants)
100 Km NW of Montesilvano (53738 inhabitants)
100 Km S of Pesaro (94582 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 0.7 2021-01-07
23:18:55		 43.03 13.15 13 2021-01-07
23:25:08		 Sala Sismica INGV-Roma 86080701
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-07 23:18:55 ± 0.14
Latitude 43.03 ± 0.00
Longitude 13.15 ± 0.00
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86080701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 430
Semi-minor axis of confidence ellipse (meter) 181
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 249
Circular confidence region, given by single value of horizontal uncertainty (meter) 430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.20145
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 86080701
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-07 23:25:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MMUR.HNZ. 2021-01-07T23:19:08.33 3.0 undecidable manual S -0.02 0
IV.CESI.HHZ. 2021-01-07T23:19:03.28 0.1 undecidable manual S 261 0.1844 104 0.21 93
IV.NRCA.HHZ. 2021-01-07T23:19:03.30 0.1 undecidable manual S 188 0.2014 102 -0.25 92
IV.MMO1.EHZ. 2021-01-07T23:19:02.85 0.1 undecidable manual S 137 0.1835 105 -0.19 94
IV.GUMA.HNN. 2021-01-07T23:19:02.22 0.3 undecidable manual S 77 0.1358 116 0.52 66
IV.MC2.EHZ. 2021-01-07T23:19:01.60 0.3 undecidable manual S 168 0.1241 119 0.21 71
IV.CSP1.EHZ. 2021-01-07T23:19:00.12 0.1 undecidable manual S 32 0.0692 141 -0.05 99
IV.PF6.EHN. 2021-01-07T23:19:00.78 0.3 undecidable manual S 15 0.1088 124 -0.24 71
IV.FDMO.HHZ. 2021-01-07T23:18:59.71 0.1 undecidable manual S 274 0.0495 152 -0.12 98
IV.SAP2.EHE. 2021-01-07T23:18:59.41 0.6 undecidable manual P 70 0.1898 104 -0.37 45
IV.MMO1.EHZ. 2021-01-07T23:18:59.55 0.3 undecidable manual P 137 0.1835 105 -0.12 71
IV.CESI.HHZ. 2021-01-07T23:18:59.75 0.1 undecidable manual P 261 0.1844 104 0.06 96
IV.GUMA.HNN. 2021-01-07T23:18:59.13 0.1 undecidable manual P 77 0.1358 116 0.24 94
IV.NRCA.HHZ. 2021-01-07T23:18:59.86 0.6 negative manual P 188 0.2014 102 -0.11 48
IV.PF6.EHN. 2021-01-07T23:18:58.36 0.1 undecidable manual P 15 0.1088 124 -0.15 97
IV.MC2.EHZ. 2021-01-07T23:18:58.91 0.3 undecidable manual P 168 0.1241 119 0.19 72
IV.CSP1.EHZ. 2021-01-07T23:18:58.06 0.6 undecidable manual P 32 0.0692 141 0.05 49
IV.FDMO.HHZ. 2021-01-07T23:18:57.82 0.1 undecidable manual P 274 0.0495 152 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.5 4.015E-5 0.2 AML other m 2021-01-07T23:18:59.77
IV.FDMO.HHN. ML:0.4 3.5347135E-5 0.1408 AML other m 2021-01-07T23:18:59.77
IV.CSP1.EHE. ML:1 0.0001074862 0.8448 AML other m 2021-01-07T23:19:00.73
IV.CSP1.EHN. ML:0.8 6.780606E-5 0.5888 AML other m 2021-01-07T23:19:00.49
IV.CESI.HHE. ML:0.4 1.391265E-5 0.2432 AML other m 2021-01-07T23:19:03.51
IV.CESI.HHN. ML:0.6 2.609934E-5 2.176 AML other m 2021-01-07T23:19:03.39
IV.NRCA.HHE. ML:0.6 2.377094E-5 0.1152 AML other m 2021-01-07T23:19:03.81
IV.NRCA.HHN. ML:0.6 2.409891E-5 0.0896 AML other m 2021-01-07T23:19:04.28
IV.NRCA.HNE. ML:1.2 0.0001094032 0.5632 AML other m 2021-01-07T23:19:05.67
IV.NRCA.HNN. ML:1.6 0.0002203729 1.2032 AML other m 2021-01-07T23:19:05.42
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