Earthquake with magnitude of ML 1.1 on date 17-01-2021 and time 00:18:26 (UTC) in region 1 km SW Monte Cavallo (MC)

A magnitude ML 1.1 earthquake occured in region: 1 km SW Monte Cavallo (MC), on

  • 17-01-2021 00:18:26 (UTC)
  • 17-01-2021 01:18:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.99, 13 at 11 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
Monte Cavallo MC 1 145 145
Pieve Torina MC 8 1458 1603
Fiordimonte MC 9 202 1805
Visso MC 10 1107 2912
Serravalle di Chienti MC 10 1070 3982
Pievebovigliana MC 11 866 4848
Muccia MC 11 915 5763
Sellano PG 12 1079 6842
Ussita MC 12 444 7286
Preci PG 13 724 8010
Fiastra MC 14 559 8569
Acquacanina MC 15 121 8690
Castelsantangelo sul Nera MC 16 281 8971
Camerino MC 18 6974 15945
Sefro MC 18 422 16367
Bolognola MC 19 142 16509
Cerreto di Spoleto PG 20 1075 17584

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km E of Foligno (57155 inhabitants)
51 Km E of Perugia (166134 inhabitants)
55 Km NE of Terni (111501 inhabitants)
68 Km NW of Teramo (54892 inhabitants)
78 Km NW of L'Aquila (69753 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
95 Km S of Fano (60888 inhabitants)
97 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 1.1 2021-01-17
00:18:26
42.99 13 11 2021-01-17
00:33:05
Sala Sismica INGV-Roma 86314171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-17 00:18:26 ± 0.08
Latitude 42.99 ± 0.01
Longitude 13.00 ± 0.00
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86314171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 770
Semi-minor axis of confidence ellipse (meter) 270
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 4
Circular confidence region, given by single value of horizontal uncertainty (meter) 770
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.0063
Epicentral distance of station farthest from the epicenter (degree) 0.35253
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 86314171
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-17 00:33:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2021-01-17T00:18:38.38 0.3 undecidable manual S 307 0.3283 90 0 70
IV.ASSB.HHZ. 2021-01-17T00:18:35.91 0.1 undecidable manual S 283 0.2545 90 -0.3 91
IV.MC2.EHZ. 2021-01-17T00:18:33.75 0.1 undecidable manual S 119 0.1583 90 0.39 91
IV.FOSV.EHZ. 2021-01-17T00:18:33.43 0.1 undecidable manual P 331 0.3525 90 -0.23 91
IV.NRCA.HHZ. 2021-01-17T00:18:33.48 0.1 undecidable manual S 151 0.1754 90 -0.39 89
IV.CSP1.EHZ. 2021-01-17T00:18:33.81 0.1 undecidable manual S 55 0.1826 90 -0.27 93
IV.EL6.EHZ. 2021-01-17T00:18:33.49 0.1 undecidable manual P 12 0.3498 90 -0.12 93
IV.ATCC.EHZ. 2021-01-17T00:18:33.10 0.1 undecidable manual P 307 0.3283 90 -0.14 93
IV.ASSB.HHZ. 2021-01-17T00:18:32.86 0.1 undecidable manual P 283 0.2545 90 0.88 74
IV.FDMO.HHZ. 2021-01-17T00:18:31.08 0.1 undecidable manual S 53 0.0809 125 -0.08 98
IV.CESI.HHZ. 2021-01-17T00:18:30.83 0.1 undecidable manual S 284 0.071 131 -0.1 98
IT.MTCL.HGE. 2021-01-17T00:18:30.00 0.1 undecidable manual S 3 0.0063 175 -0.06 100
IV.CSP1.EHZ. 2021-01-17T00:18:30.76 0.1 undecidable manual P 55 0.1826 90 0 97
IV.MC2.EHZ. 2021-01-17T00:18:30.91 0.1 undecidable manual P 119 0.1583 90 0.57 86
IV.NRCA.HHZ. 2021-01-17T00:18:30.43 0.1 undecidable manual P 151 0.1754 90 -0.2 93
IV.FDMO.HHZ. 2021-01-17T00:18:29.12 0.1 undecidable manual P 53 0.0809 125 0.05 98
IV.CESI.HHZ. 2021-01-17T00:18:28.98 0.1 undecidable manual P 284 0.071 131 0.04 98
IT.MTCL.HGE. 2021-01-17T00:18:28.46 0.1 undecidable manual P 3 0.0063 175 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1 0.0001315 1.82 AML other m 2021-01-17T00:18:30.05
IV.CESI.HHN. ML:1.2 0.000218 0.32 AML other m 2021-01-17T00:18:31.08
IV.FDMO.HHN. ML:1.2 0.000207 0.5 AML other m 2021-01-17T00:18:31.36
IV.FDMO.HHE. ML:1.1 0.0001715 0.14 AML other m 2021-01-17T00:18:31.54
IV.NRCA.HHN. ML:1.1 9.475E-5 0.14 AML other m 2021-01-17T00:18:33.76
IV.NRCA.HHE. ML:1 7.725E-5 1.56 AML other m 2021-01-17T00:18:34.87
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