Earthquake with magnitude of ML 1.4 on date 22-01-2020 and time 00:42:21 (Italy) in region 8 km SE Castelsantangelo sul Nera (MC)

A magnitude ML 1.4 earthquake occured in region: 8 km SE Castelsantangelo sul Nera (MC), on

  • 21-01-2020 23:42:21 (UTC)
  • 22-01-2020 00:42:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.84, 13.22 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.

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 9 281 281
Montegallo AP 10 523 804
Arquata del Tronto AP 10 1178 1982
Norcia PG 11 4957 6939
Montemonaco AP 12 604 7543
Ussita MC 14 444 7987
Visso MC 15 1107 9094
Preci PG 15 724 9818
Montefortino FM 16 1178 10996
Accumoli RI 16 667 11663
Acquasanta Terme AP 17 2916 14579
Bolognola MC 18 142 14721
Amandola FM 20 3629 18350

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km E of Foligno (57155 inhabitants)
44 Km W of Teramo (54892 inhabitants)
56 Km NE of Terni (111501 inhabitants)
56 Km N of L'Aquila (69753 inhabitants)
74 Km E of Perugia (166134 inhabitants)
84 Km W of Montesilvano (53738 inhabitants)
90 Km S of Ancona (100861 inhabitants)
91 Km W of Pescara (121014 inhabitants)
95 Km NW of Chieti (51815 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
Rev 100 ML 1.4 2020-01-21
23:42:21
42.84 13.22 13 2020-01-21
23:50:13
Sala Sismica INGV-Roma 75709531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-21 23:42:21 ± 0.07
Latitude 42.84 ± 0.00
Longitude 13.22 ± 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 75709531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 270
Semi-minor axis of confidence ellipse (meter) 64
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 95
Circular confidence region, given by single value of horizontal uncertainty (meter) 270
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
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) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.07644
Epicentral distance of station farthest from the epicenter (degree) 0.32645
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 75709531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-21 23:50:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RM33.EHZ. 2020-01-21T23:42:34.09 0.1 undecidable manual S 180 0.3265 96 0.16 94
IV.GAVE.EHZ. 2020-01-21T23:42:32.56 0.1 undecidable manual S 239 0.2779 98 0.07 96
IV.CSP1.EHZ. 2020-01-21T23:42:31.94 0.1 undecidable manual S 358 0.2563 99 0.08 96
IV.SMA1.EHZ. 2020-01-21T23:42:30.90 0.1 undecidable manual S 157 0.2221 101 0.02 98
IV.FDMO.HHZ. 2020-01-21T23:42:30.66 0.1 undecidable manual S 335 0.2221 101 -0.21 95
IV.RM33.EHZ. 2020-01-21T23:42:28.71 0.3 undecidable manual P 180 0.3265 96 -0.08 71
IV.MTRA.EHZ. 2020-01-21T23:42:28.74 0.1 undecidable manual S 121 0.1529 112 -0.15 95
IV.GAVE.EHZ. 2020-01-21T23:42:28.13 1.0 positive manual P 239 0.2779 98 0.17 23
IV.MC2.EHZ. 2020-01-21T23:42:27.28 0.1 undecidable manual S 344 0.0782 138 0.2 97
IV.MMO1.EHZ. 2020-01-21T23:42:27.60 0.3 undecidable manual S 51 0.1016 129 0.02 75
IV.SMA1.EHZ. 2020-01-21T23:42:27.07 1.0 undecidable manual P 157 0.2221 101 0.05 25
IV.CSP1.EHZ. 2020-01-21T23:42:27.59 0.1 undecidable manual P 358 0.2563 99 0 98
IV.FDMO.HHZ. 2020-01-21T23:42:26.91 1.0 undecidable manual P 335 0.2221 101 -0.12 24
IV.NRCA.HHZ. 2020-01-21T23:42:26.72 0.1 undecidable manual S 268 0.0764 139 -0.32 95
IV.MC2.EHZ. 2020-01-21T23:42:25.02 0.1 undecidable manual P 344 0.0782 138 0.19 97
IV.MMO1.EHZ. 2020-01-21T23:42:25.18 0.1 undecidable manual P 51 0.1016 129 0.05 100
IV.MTRA.EHZ. 2020-01-21T23:42:25.89 0.1 undecidable manual P 121 0.1529 112 0.01 99
IV.NRCA.HHZ. 2020-01-21T23:42:24.71 0.1 undecidable manual P 268 0.0764 139 -0.1 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.3 0.0002365 1.24 AML other m 2020-01-21T23:42:27.93
IV.NRCA.HHN. ML:1.4 0.0002815 1 AML other m 2020-01-21T23:42:27.49
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