Earthquake with magnitude of ML 1.1 on date 18-01-2020 and time 00:07:01 (UTC) in region 2 km N Accumoli (RI)

A magnitude ML 1.1 earthquake occured in region: 2 km N Accumoli (RI), on

  • 18-01-2020 00:07:01 (UTC)
  • 18-01-2020 01:07:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.71, 13.24 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
Accumoli RI 2 667 667
Arquata del Tronto AP 8 1178 1845
Amatrice RI 10 2657 4502
Cittareale RI 13 482 4984
Acquasanta Terme AP 15 2916 7900
Norcia PG 15 4957 12857
Montegallo AP 16 523 13380
Cascia PG 19 3217 16597

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km W of Teramo (54892 inhabitants)
42 Km NW of L'Aquila (69753 inhabitants)
52 Km SE of Foligno (57155 inhabitants)
52 Km E of Terni (111501 inhabitants)
77 Km W of Montesilvano (53738 inhabitants)
82 Km SE of Perugia (166134 inhabitants)
84 Km W of Pescara (121014 inhabitants)
86 Km W of Chieti (51815 inhabitants)
90 Km NE of Guidonia Montecelio (88673 inhabitants)
91 Km NE of Tivoli (56533 inhabitants)
99 Km E 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
Rev 100 ML 1.1 2020-01-18
00:07:01
42.71 13.24 10 2020-01-18
00:17:10
Sala Sismica INGV-Roma 75621721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-18 00:07:01 ± 0.07
Latitude 42.71 ± 0.00
Longitude 13.24 ± 0.01
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 75621721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 479
Semi-minor axis of confidence ellipse (meter) 238
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 268
Circular confidence region, given by single value of horizontal uncertainty (meter) 480
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.10702
Epicentral distance of station farthest from the epicenter (degree) 0.37861
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 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 75621721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-18 00:17:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2020-01-18T00:07:14.97 0.3 undecidable manual S 356 0.3786 50 0.12 70
IV.FDMO.HHZ. 2020-01-18T00:07:13.58 0.3 undecidable manual S 340 0.3417 50 -0.19 70
IV.MF5.EHZ. 2020-01-18T00:07:13.78 0.1 undecidable manual S 30 0.3157 50 0.79 78
IV.GIGS.HHZ. 2020-01-18T00:07:13.69 0.3 undecidable manual S 137 0.3552 50 -0.48 65
IV.GAVE.EHZ. 2020-01-18T00:07:11.25 0.1 undecidable manual S 265 0.2581 50 -0.02 98
IV.MMO1.EHZ. 2020-01-18T00:07:09.07 0.1 undecidable manual S 18 0.1952 115 -0.25 95
IV.LNSS.HHZ. 2020-01-18T00:07:09.20 0.1 undecidable manual S 234 0.1862 116 0.17 96
IV.RM33.EHZ. 2020-01-18T00:07:09.77 0.1 undecidable manual S 186 0.2059 114 0.06 98
IV.GIGS.HHZ. 2020-01-18T00:07:08.27 0.1 undecidable manual P 137 0.3552 50 -0.33 90
IV.CSP1.EHZ. 2020-01-18T00:07:08.87 0.1 undecidable manual P 356 0.3786 50 -0.13 94
IV.FDMO.HHZ. 2020-01-18T00:07:08.16 0.1 undecidable manual P 340 0.3417 50 -0.21 93
IV.MF5.EHZ. 2020-01-18T00:07:08.22 0.1 undecidable manual P 30 0.3157 50 0.3 91
IV.NRCA.HHZ. 2020-01-18T00:07:07.70 0.1 undecidable manual S 321 0.1529 121 -0.19 97
IV.RM33.EHZ. 2020-01-18T00:07:06.07 0.3 positive manual P 186 0.2059 114 0.04 74
IV.GAVE.EHZ. 2020-01-18T00:07:06.89 0.1 undecidable manual P 265 0.2581 50 -0.04 97
IV.SMA1.EHZ. 2020-01-18T00:07:06.40 0.1 undecidable manual S 141 0.107 131 -0.06 100
IV.NRCA.HHZ. 2020-01-18T00:07:05.03 0.1 positive manual P 321 0.1529 121 0.05 99
IV.MMO1.EHZ. 2020-01-18T00:07:05.69 0.1 undecidable manual P 18 0.1952 115 -0.11 97
IV.LNSS.HHZ. 2020-01-18T00:07:05.80 0.1 undecidable manual P 234 0.1862 116 0.16 96
IV.SMA1.EHZ. 2020-01-18T00:07:04.46 0.1 undecidable manual P 141 0.107 131 0.31 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:1.2 0.000166 0.18 AML other m 2020-01-18T00:07:06.91
IV.SMA1.EHN. ML:1.1 0.000132 1.42 AML other m 2020-01-18T00:07:06.96
IV.NRCA.HHN. ML:1.3 0.0001755 0.8 AML other m 2020-01-18T00:07:07.84
IV.NRCA.HHE. ML:1.5 0.0002745 0.16 AML other m 2020-01-18T00:07:07.77
IV.LNSS.HHN. ML:1.3 0.000153 0.36 AML other m 2020-01-18T00:07:09.37
IV.RM33.EHN. ML:0.8 4.75E-5 1.86 AML other m 2020-01-18T00:07:10.98
IV.LNSS.HHE. ML:1 7.55E-5 0.74 AML other m 2020-01-18T00:07:10.68
IV.RM33.EHE. ML:0.8 4.095E-5 0.3 AML other m 2020-01-18T00:07:11.35
IV.GAVE.EHE. ML:0.9 3.97E-5 0.14 AML other m 2020-01-18T00:07:11.53
IV.GAVE.EHN. ML:0.9 3.84E-5 0.82 AML other m 2020-01-18T00:07:11.42
IV.MF5.EHE. ML:1.1 4.895E-5 0.46 AML other m 2020-01-18T00:07:14.30
IV.MF5.EHN. ML:1.1 4.945E-5 0.54 AML other m 2020-01-18T00:07:20.08
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