INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.6 on date 23-01-2019 and time 05:40:42 (Italy) in region 9 km SE Castelsantangelo sul Nera (MC)

A magnitude ML 1.6 earthquake occured in region: 9 km SE Castelsantangelo sul Nera (MC), on

  • 23-01-2019 04:40:42 (UTC)
  • 23-01-2019 05:40:42 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.83, 13.21 at 9 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
Arquata del Tronto AP 10 1178 1459
Norcia PG 10 4957 6416
Montegallo AP 10 523 6939
Montemonaco AP 13 604 7543
Ussita MC 14 444 7987
Preci PG 15 724 8711
Visso MC 15 1107 9818
Accumoli RI 15 667 10485
Montefortino FM 17 1178 11663
Acquasanta Terme AP 18 2916 14579
Bolognola MC 19 142 14721

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km E of Foligno (57155 inhabitants)
45 Km W of Teramo (54892 inhabitants)
55 Km NE of Terni (111501 inhabitants)
55 Km N of L'Aquila (69753 inhabitants)
74 Km E of Perugia (166134 inhabitants)
85 Km W of Montesilvano (53738 inhabitants)
91 Km S of Ancona (100861 inhabitants)
92 Km W of Pescara (121014 inhabitants)
95 Km NW of Chieti (51815 inhabitants)
100 Km NE of Guidonia Montecelio (88673 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 1.6 2019-01-23
04:40:42
42.83 13.21 9 2019-01-23
04:48:01
Sala Sismica INGV-Roma 64868031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-01-23 04:40:42 ± 0.05
Latitude 42.83 ± 0.00
Longitude 13.21 ± 0.00
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 64868031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 295
Semi-minor axis of confidence ellipse (meter) 276
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 46
Circular confidence region, given by single value of horizontal uncertainty (meter) 290
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.45596
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.4
Num. used stations 30
Type of magnitude ML
Reference to an origin 64868031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-01-23 04:48:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2019-01-23T04:41:12.99 3.0 undecidable manual S 0.18 0
IV.ARVD.HHZ. 2019-01-23T04:41:07.45 3.0 undecidable manual S 0.05 0
IV.EL6.EHZ. 2019-01-23T04:41:01.00 3.0 undecidable manual S -0.11 0
IV.ASSB.HHZ. 2019-01-23T04:40:58.88 0.3 undecidable manual S 298 0.456 50 0.31 66
IV.TERO.HHZ. 2019-01-23T04:40:55.40 0.6 undecidable manual S 125 0.3552 50 -0.2 46
IV.CAMP.HHZ. 2019-01-23T04:40:54.85 0.6 undecidable manual S 153 0.3283 50 0.07 47
IV.LNSS.HHZ. 2019-01-23T04:40:53.09 0.6 undecidable manual S 209 0.2581 107 0.52 43
IV.CESI.HHZ. 2019-01-23T04:40:53.44 0.6 undecidable manual S 308 0.2842 50 -0.04 48
IV.EL6.EHZ. 2019-01-23T04:40:52.55 3.0 undecidable manual P -0.21 0
IV.GUMA.HHZ. 2019-01-23T04:40:52.66 0.6 undecidable manual S 21 0.2509 108 0.36 45
IV.MF5.EHZ. 2019-01-23T04:40:52.65 0.6 undecidable manual S 49 0.2419 109 0.66 41
IV.SMA1.EHZ. 2019-01-23T04:40:51.06 0.6 undecidable manual S 155 0.2194 110 -0.09 48
IV.FDMO.HHZ. 2019-01-23T04:40:51.33 0.6 undecidable manual S 337 0.2257 110 -0.05 48
IV.ASSB.HHZ. 2019-01-23T04:40:51.50 0.6 negative manual P 298 0.456 50 -0.13 45
IV.FEMA.HNE. 2019-01-23T04:40:49.98 0.3 undecidable manual S 319 0.1772 115 0.34 69
IV.CAMP.HHZ. 2019-01-23T04:40:49.25 0.6 undecidable manual P 153 0.3283 50 -0.19 46
IV.TERO.HHZ. 2019-01-23T04:40:49.60 0.6 undecidable manual P 125 0.3552 50 -0.32 45
IV.CESI.HHZ. 2019-01-23T04:40:48.50 0.3 positive manual P 308 0.2842 50 -0.19 70
IV.MF5.EHZ. 2019-01-23T04:40:48.02 0.6 positive manual P 49 0.2419 109 0.19 47
IV.GUMA.HHZ. 2019-01-23T04:40:48.10 0.1 negative manual P 21 0.2509 108 0.09 96
IV.LNSS.HHZ. 2019-01-23T04:40:48.14 0.6 negative manual P 209 0.2581 107 -0.03 48
IV.FDMO.HHZ. 2019-01-23T04:40:47.30 1.0 negative manual P 337 0.2257 110 -0.18 24
IV.MMO1.EHZ. 2019-01-23T04:40:47.17 0.6 undecidable manual S 51 0.1106 126 -0.28 47
IV.T1299.EHE. 2019-01-23T04:40:47.34 0.1 undecidable manual P 165 0.2023 112 0.34 91
IV.SMA1.EHZ. 2019-01-23T04:40:47.24 0.6 negative manual P 155 0.2194 110 -0.11 48
IT.MTCL.HGE. 2019-01-23T04:40:47.23 0.1 undecidable manual P 317 0.2248 110 -0.24 93
IV.FEMA.HNE. 2019-01-23T04:40:46.52 0.3 undecidable manual P 319 0.1772 115 0.04 73
IV.NRCA.HNZ. 2019-01-23T04:40:46.00 0.6 undecidable manual S 274 0.0701 139 -0.27 48
IV.MC2.EHZ. 2019-01-23T04:40:46.40 0.3 undecidable manual S 350 0.0836 134 -0.23 72
IV.MMO1.EHZ. 2019-01-23T04:40:45.04 0.1 positive manual P 51 0.1106 126 -0.17 96
IV.NRCA.HNZ. 2019-01-23T04:40:44.44 0.1 undecidable manual P 274 0.0701 139 -0.09 99
IV.MC2.EHZ. 2019-01-23T04:40:44.72 0.1 negative manual P 350 0.0836 134 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:2.2 0.002486389 0.1824 AML other m 2019-01-23T04:40:46.21
IV.NRCA.HHN. ML:2.6 0.005615931 0.0992 AML other m 2019-01-23T04:40:46.31
IV.NRCA.HNE. ML:2.2 0.0025235955 0.1824 AML other m 2019-01-23T04:40:46.21
IV.NRCA.HNN. ML:2.5 0.005253369 0.1088 AML other m 2019-01-23T04:40:46.31
IV.SMA1.EHE. ML:1 5.4829585E-5 0.0992 AML other m 2019-01-23T04:40:51.60
IV.SMA1.EHN. ML:1.1 8.5394195E-5 0.6016 AML other m 2019-01-23T04:40:51.60
IV.FDMO.HHE. ML:1.3 0.0001311935 0.1824 AML other m 2019-01-23T04:40:52.59
IV.FDMO.HHN. ML:1.4 0.00015194315 0.1792 AML other m 2019-01-23T04:40:52.94
IV.MF5.EHE. ML:1.4 0.00012519307 0.2784 AML other m 2019-01-23T04:40:52.91
IV.MF5.EHN. ML:1.4 0.0001526102 0.3424 AML other m 2019-01-23T04:40:54.57
IV.GUMA.HHE. ML:2.2 0.0009235848 0.3584 AML other m 2019-01-23T04:40:53.01
IV.GUMA.HHN. ML:2 0.00061175965 0.3808 AML other m 2019-01-23T04:40:54.02
IV.GUMA.HNE. ML:2.1 0.00068173385 0.32 AML other m 2019-01-23T04:40:54.31
IV.GUMA.HNN. ML:2.3 0.0011151204 1.3184 AML other m 2019-01-23T04:40:51.57
IV.LNSS.HHE. ML:1.8 0.00028963635 0.16 AML other m 2019-01-23T04:40:53.72
IV.LNSS.HHN. ML:1.7 0.0002856293 0.2368 AML other m 2019-01-23T04:40:53.77
IV.LNSS.HNE. ML:1.8 0.00029247515 0.1728 AML other m 2019-01-23T04:40:53.64
IV.LNSS.HNN. ML:1.7 0.00027939995 0.2496 AML other m 2019-01-23T04:40:53.90
IV.CESI.HHE. ML:1.5 0.00013527789 0.24 AML other m 2019-01-23T04:40:56.04
IV.CESI.HHN. ML:1.8 0.00028355365 0.3424 AML other m 2019-01-23T04:40:54.13
IV.CAMP.HHE. ML:1.3 7.0909095E-5 1.2192 AML other m 2019-01-23T04:40:54.81
IV.CAMP.HHN. ML:1.1 5.0466675E-5 2.7008 AML other m 2019-01-23T04:40:49.97
IV.TERO.HHE. ML:1.2 6.1619153365E-5 0.1184 AML other m 2019-01-23T04:40:55.72
IV.TERO.HHN. ML:1.5 0.0001104822 0.1184 AML other m 2019-01-23T04:40:55.84
IV.TERO.HNE. ML:1.2 5.3454425E-5 1.3984 AML other m 2019-01-23T04:40:56.09
IV.TERO.HNN. ML:1.3 7.260112E-5 1.1296 AML other m 2019-01-23T04:40:55.97
IV.ASSB.HHE. ML:1.4 6.1440575E-5 0.1184 AML other m 2019-01-23T04:41:00.35
IV.ASSB.HHN. ML:1.3 5.422558E-5 0.1184 AML other m 2019-01-23T04:41:00.94
IV.EL6.EHE. ML:1.6 8.8776165E-5 0.1408 AML other m 2019-01-23T04:41:02.16
IV.EL6.EHN. ML:1.6 9.116683E-5 0.1792 AML other m 2019-01-23T04:41:02.41
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