Earthquake with magnitude of ML 1.8 on date 20-11-2021 and time 00:34:59 (Italy) in region 2 km NE Amatrice (RI)

A magnitude ML 1.8 earthquake occured in region: 2 km NE Amatrice (RI), on

  • 19-11-2021 23:34:59 (UTC)
  • 20-11-2021 00:34:59 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.65, 13.299 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
Amatrice RI 2 2657 2657
Accumoli RI 7 667 3324
Campotosto AQ 12 542 3866
Cittareale RI 12 482 4348
Arquata del Tronto AP 14 1178 5526
Capitignano AQ 14 665 6191
Montereale AQ 15 2581 8772
Acquasanta Terme AP 16 2916 11688
Cortino TE 17 656 12344
Crognaleto TE 19 1297 13641
Valle Castellana TE 19 977 14618
Rocca Santa Maria TE 19 537 15155

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km W of Teramo (54892 inhabitants)
34 Km N of L'Aquila (69753 inhabitants)
54 Km E of Terni (111501 inhabitants)
59 Km SE of Foligno (57155 inhabitants)
71 Km W of Montesilvano (53738 inhabitants)
78 Km W of Pescara (121014 inhabitants)
79 Km W of Chieti (51815 inhabitants)
86 Km NE of Guidonia Montecelio (88673 inhabitants)
87 Km NE of Tivoli (56533 inhabitants)
90 Km SE of Perugia (166134 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.8 2021-11-19
23:34:59
42.6503 13.2993 9 2021-11-19
23:40:08
Sala Sismica INGV-Roma 97609391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-19 23:34:59 ± 0.05
Latitude 42.6503 ± 0.0027
Longitude 13.2993 ± 0.0037
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 97609391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 285
Semi-minor axis of confidence ellipse (meter) 229
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 231
Circular confidence region, given by single value of horizontal uncertainty (meter) 280
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 63
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 24
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) 0.45775
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 48
Type of magnitude ML
Reference to an origin 97609391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-19 23:40:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MOMA.HHZ. 2021-11-19T23:35:20.12 3.0 undecidable manual S 0.17 0
IV.MML1.EHZ. 2021-11-19T23:35:18.79 3.0 undecidable manual S -0.2 0
IV.CESI.HHZ. 2021-11-19T23:35:16.15 0.1 undecidable manual S 321 0.4578 50 0.14 92
IV.MF5.EHZ. 2021-11-19T23:35:13.23 0.3 undecidable manual S 19 0.357 50 0.19 70
IV.EL6.EHZ. 2021-11-19T23:35:13.82 3.0 negative manual P 0.06 0
IV.GAVE.EHZ. 2021-11-19T23:35:11.00 0.1 undecidable manual S 278 0.3004 50 -0.37 91
IV.CESX.HHZ. 2021-11-19T23:35:10.70 3.0 positive manual P 0.26 0
IV.T0110.HHZ. 2021-11-19T23:35:10.63 3.0 positive manual P -0.65 0
IV.MML1.EHZ. 2021-11-19T23:35:10.17 3.0 negative manual P -0.33 0
IV.MC2.EHZ. 2021-11-19T23:35:10.47 0.3 undecidable manual S 343 0.2734 106 0.05 73
IV.TRTR.HHZ. 2021-11-19T23:35:10.72 3.0 positive manual P 0.63 0
IV.MNTT.EHZ. 2021-11-19T23:35:10.31 3.0 negative manual P 0.59 0
IV.VCEL.EHZ. 2021-11-19T23:35:09.74 3.0 positive manual P -0.23 0
IV.MMO1.EHZ. 2021-11-19T23:35:09.46 0.1 undecidable manual S 5 0.25 107 -0.09 97
IV.OFFI.HHZ. 2021-11-19T23:35:09.13 3.0 undecidable manual P 0.53 0
IV.FAGN.HHZ. 2021-11-19T23:35:09.09 3.0 positive manual P -0.09 0
IV.TERO.HHZ. 2021-11-19T23:35:08.28 0.1 undecidable manual S 97 0.2257 109 -0.38 92
IV.GUMA.HHZ. 2021-11-19T23:35:08.61 3.0 undecidable manual P -0.02 0
IV.NRCA.HNZ. 2021-11-19T23:35:08.63 0.1 undecidable manual S 323 0.2284 109 -0.12 97
IV.CESI.HHZ. 2021-11-19T23:35:08.96 0.1 positive manual P 321 0.4578 50 -0.06 94
IV.FDMO.HHZ. 2021-11-19T23:35:08.29 3.0 positive manual P -0.28 0
IV.CSP1.EHZ. 2021-11-19T23:35:08.76 3.0 positive manual P -0.44 0
IV.MF5.EHZ. 2021-11-19T23:35:07.59 0.1 undecidable manual P 19 0.357 50 0.29 91
IV.LNSS.HHZ. 2021-11-19T23:35:07.46 0.1 undecidable manual S 256 0.1961 112 -0.15 97
IV.MC2.EHZ. 2021-11-19T23:35:06.21 0.1 undecidable manual P 343 0.2734 106 0.42 90
IV.RM33.EHZ. 2021-11-19T23:35:06.31 0.1 undecidable manual S 204 0.1547 117 0.17 97
IV.GAVE.EHZ. 2021-11-19T23:35:06.02 0.1 positive manual P 278 0.3004 50 -0.31 92
IV.MTRA.EHZ. 2021-11-19T23:35:05.13 0.1 undecidable manual S 34 0.1277 121 -0.12 99
IV.CAMP.HHZ. 2021-11-19T23:35:05.61 0.1 undecidable manual S 145 0.1403 119 -0.04 100
IV.MMO1.EHZ. 2021-11-19T23:35:05.16 0.1 undecidable manual P 5 0.25 107 -0.13 96
IV.LNSS.HHZ. 2021-11-19T23:35:04.24 0.1 positive manual P 256 0.1961 112 0.07 98
IV.TERO.HHZ. 2021-11-19T23:35:04.65 0.1 undecidable manual P 97 0.2257 109 -0.13 97
IV.NRCA.HNZ. 2021-11-19T23:35:04.86 0.1 undecidable manual P 323 0.2284 109 0.03 99
IV.CAMP.HHZ. 2021-11-19T23:35:03.27 0.1 undecidable manual P 145 0.1403 119 0.24 96
IV.RM33.EHZ. 2021-11-19T23:35:03.50 0.1 undecidable manual P 204 0.1547 117 0.18 97
IV.MTRA.EHZ. 2021-11-19T23:35:02.97 0.1 positive manual P 34 0.1277 121 0.16 98
IV.SMA1.EHZ. 2021-11-19T23:35:02.60 0.1 undecidable manual S 127 0.0333 157 -0.14 100
IV.SMA1.EHZ. 2021-11-19T23:35:01.52 0.1 positive manual P 127 0.0333 157 0.17 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.HNE. ML:2.3 0.001955 0.16 AML other m 2021-11-19T23:35:05.60
IV.MTRA.EHE. ML:2.3 0.00196 0.16 AML other m 2021-11-19T23:35:05.61
IV.MTRA.HNN. ML:2.2 0.00159 1.44 AML other m 2021-11-19T23:35:05.94
IV.MTRA.EHN. ML:2.2 0.00163 1.46 AML other m 2021-11-19T23:35:05.22
IV.CAMP.HHN. ML:1.7 0.0004795 1.72 AML other m 2021-11-19T23:35:06.05
IV.CAMP.HHE. ML:1.7 0.0004605 0.3 AML other m 2021-11-19T23:35:06.05
IV.RM33.HNE. ML:1.8 0.0006305 0.58 AML other m 2021-11-19T23:35:08.48
IV.TERO.HNN. ML:1.9 0.000524 0.2 AML other m 2021-11-19T23:35:08.78
IV.RM33.EHE. ML:1.8 0.0005955 0.6 AML other m 2021-11-19T23:35:08.48
IV.RM33.HNN. ML:1.8 0.0006325 0.3 AML other m 2021-11-19T23:35:08.79
IV.RM33.EHN. ML:1.8 0.0005985 0.3 AML other m 2021-11-19T23:35:08.79
IV.TERO.HHN. ML:2 0.0006015 0.18 AML other m 2021-11-19T23:35:08.79
IV.TERO.HHE. ML:2.1 0.0007505 1.16 AML other m 2021-11-19T23:35:08.28
IV.TERO.HNE. ML:2.1 0.0008065 1.18 AML other m 2021-11-19T23:35:08.87
IV.LNSS.HHE. ML:1.7 0.000342 0.74 AML other m 2021-11-19T23:35:08.87
IV.MMO1.EHN. ML:1.6 0.000221 0.4 AML other m 2021-11-19T23:35:09.59
IV.LNSS.HHN. ML:1.7 0.0003375 0.94 AML other m 2021-11-19T23:35:11.25
IV.GAVE.EHN. ML:2 0.000449 0.24 AML other m 2021-11-19T23:35:11.52
IV.GAVE.EHE. ML:1.8 0.000306 0.64 AML other m 2021-11-19T23:35:11.91
IV.MMO1.EHE. ML:1.6 0.0001915 0.36 AML other m 2021-11-19T23:35:11.79
IV.MC2.EHN. ML:1.8 0.0003055 0.84 AML other m 2021-11-19T23:35:13.92
IV.MC2.EHE. ML:1.7 0.0002551 1.34 AML other m 2021-11-19T23:35:14.20
IV.FDMO.HHE. ML:1.4 7.2E-5 1.26 AML other m 2021-11-19T23:35:15.82
IV.FDMO.HHN. ML:1.5 9.28E-5 1.2 AML other m 2021-11-19T23:35:17.66
IV.CESI.HHN. ML:1.6 0.000111 1.64 AML other m 2021-11-19T23:35:18.86
IV.FAGN.HHE. ML:1.8 0.0001535 0.74 AML other m 2021-11-19T23:35:18.32
IV.CESI.HHE. ML:1.5 7.36E-5 0.42 AML other m 2021-11-19T23:35:18.13
IV.CSP1.EHE. ML:1.7 0.00013545 1.3 AML other m 2021-11-19T23:35:18.76
IV.MML1.EHN. ML:1.4 5.2E-5 0.8 AML other m 2021-11-19T23:35:19.26
IV.VCEL.EHN. ML:1.9 0.000181 0.76 AML other m 2021-11-19T23:35:19.57
IV.VCEL.EHE. ML:1.9 0.000201 0.42 AML other m 2021-11-19T23:35:19.69
IV.FAGN.HHN. ML:1.8 0.000189 0.44 AML other m 2021-11-19T23:35:19.69
IV.GUMA.HNE. ML:1.8 0.000188 0.78 AML other m 2021-11-19T23:35:20.07
IV.T0110.HHN. ML:1.7 0.0001093 1.48 AML other m 2021-11-19T23:35:21.04
IV.GUMA.HHE. ML:1.9 0.000229 0.68 AML other m 2021-11-19T23:35:21.11
IV.CSP1.EHN. ML:1.8 0.0001725 0.58 AML other m 2021-11-19T23:35:21.20
IV.GUMA.HHN. ML:1.9 0.0002235 0.42 AML other m 2021-11-19T23:35:21.37
IV.MOMA.HHN. ML:1.6 7.45E-5 0.22 AML other m 2021-11-19T23:35:21.77
IV.MML1.EHE. ML:1.3 4.38E-5 1.12 AML other m 2021-11-19T23:35:21.90
IV.MOMA.HHE. ML:1.6 8.065E-5 1.58 AML other m 2021-11-19T23:35:21.93
IV.GUMA.HNN. ML:2.1 0.000378 0.92 AML other m 2021-11-19T23:35:22.58
IV.MNTT.EHN. ML:2 0.0002365 1.4 AML other m 2021-11-19T23:35:22.99
IV.CESX.HHE. ML:1.3 4.48E-5 0.48 AML other m 2021-11-19T23:35:23.99
IV.T0110.HHE. ML:1.7 0.0001006 0.58 AML other m 2021-11-19T23:35:25.54
IV.CESX.HHN. ML:1.3 4.4E-5 0.9 AML other m 2021-11-19T23:35:26.42
IV.EL6.EHE. ML:1.6 6.68E-5 0.16 AML other m 2021-11-19T23:35:27.95
IV.MNTT.EHE. ML:1.8 0.000168 0.66 AML other m 2021-11-19T23:35:30.46
IV.EL6.EHN. ML:1.5 4.86E-5 0.9 AML other m 2021-11-19T23:35:34.94
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download