Earthquake with magnitude of ML 1.3 on date 22-11-2021 and time 01:26:38 (Italy) in region 7 km W Arquata del Tronto (AP)

A magnitude ML 1.3 earthquake occured in region: 7 km W Arquata del Tronto (AP), on

  • 22-11-2021 00:26:38 (UTC)
  • 22-11-2021 01:26:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.804, 13.224 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
Arquata del Tronto AP 7 1178 1178
Montegallo AP 10 523 1701
Norcia PG 11 4957 6658
Castelsantangelo sul Nera MC 12 281 6939
Accumoli RI 12 667 7606
Montemonaco AP 14 604 8210
Acquasanta Terme AP 16 2916 11126
Ussita MC 17 444 11570
Preci PG 17 724 12294
Visso MC 18 1107 13401
Montefortino FM 18 1178 14579
Cascia PG 20 3217 17796
Amatrice RI 20 2657 20453

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km W of Teramo (54892 inhabitants)
46 Km E of Foligno (57155 inhabitants)
52 Km N of L'Aquila (69753 inhabitants)
54 Km NE of Terni (111501 inhabitants)
76 Km E of Perugia (166134 inhabitants)
82 Km W of Montesilvano (53738 inhabitants)
89 Km W of Pescara (121014 inhabitants)
92 Km NW of Chieti (51815 inhabitants)
94 Km S of Ancona (100861 inhabitants)
98 Km NE of Guidonia Montecelio (88673 inhabitants)
100 Km NE of Tivoli (56533 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 1.3 2021-11-22
00:26:38
42.8038 13.2235 11 2021-11-22
00:49:19
Sala Sismica INGV-Roma 97672271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-22 00:26:38 ± 0.06
Latitude 42.8038 ± 0.0036
Longitude 13.2235 ± 0.0049
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97672271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 423
Semi-minor axis of confidence ellipse (meter) 347
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 64
Circular confidence region, given by single value of horizontal uncertainty (meter) 420
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 66
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.37502
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 34
Type of magnitude ML
Reference to an origin 97672271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-22 00:49:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.BSSO.HHZ. 2021-11-22T00:27:27.01 3.0 undecidable manual Sn -0.37 0
IV.VVLD.HHZ. 2021-11-22T00:27:12.06 3.0 undecidable manual S 0.28 0
IV.SACS.HHZ. 2021-11-22T00:26:57.63 3.0 positive manual P 0.59 0
IV.CESI.HHZ. 2021-11-22T00:26:50.45 0.1 undecidable manual S 311 0.3076 50 -0.16 95
IV.EL6.EHZ. 2021-11-22T00:26:49.51 3.0 positive manual P -0.12 0
IV.MF5.EHZ. 2021-11-22T00:26:49.45 0.1 undecidable manual S 43 0.2527 50 0.49 90
IV.GAVE.EHZ. 2021-11-22T00:26:49.55 0.1 undecidable manual S 245 0.2662 50 0.18 96
IV.LNSS.HHZ. 2021-11-22T00:26:48.90 0.1 undecidable manual S 214 0.2419 50 0.25 95
IV.ASSB.HHZ. 2021-11-22T00:26:48.56 3.0 negative manual P -0.07 0
IV.FDMO.HHZ. 2021-11-22T00:26:48.51 0.1 undecidable manual S 337 0.2527 50 -0.47 90
IV.MOMA.HHZ. 2021-11-22T00:26:48.48 3.0 undecidable manual P -0.18 0
IV.MNTT.EHZ. 2021-11-22T00:26:47.39 1.0 negative manual P 46 0.375 50 0.54 22
IV.SMA1.EHZ. 2021-11-22T00:26:47.08 0.1 undecidable manual S 155 0.1916 50 -0.09 99
IV.OFFI.HHZ. 2021-11-22T00:26:47.23 3.0 positive manual P 0.64 0
IV.MML1.EHZ. 2021-11-22T00:26:46.40 3.0 positive manual P -0.1 0
IV.CESI.HHZ. 2021-11-22T00:26:45.62 0.1 negative manual P 311 0.3076 50 -0.08 97
IV.CSP1.EHZ. 2021-11-22T00:26:45.09 3.0 negative manual P -0.15 0
IV.MTRA.EHZ. 2021-11-22T00:26:45.23 0.1 undecidable manual S 110 0.1358 126 -0.21 98
IV.TERO.HHZ. 2021-11-22T00:26:45.86 0.6 negative manual P 123 0.3327 50 -0.27 46
IV.RM33.EHZ. 2021-11-22T00:26:45.53 3.0 positive manual P 0.19 0
IV.GUMA.HHZ. 2021-11-22T00:26:45.14 0.6 positive manual P 17 0.2716 50 0.07 49
IV.MMO1.EHZ. 2021-11-22T00:26:44.92 0.1 undecidable manual S 38 0.1214 129 -0.1 100
IV.FDMO.HHZ. 2021-11-22T00:26:44.43 0.6 negative manual P 337 0.2527 50 -0.33 46
IV.LNSS.HHZ. 2021-11-22T00:26:44.54 0.3 positive manual P 214 0.2419 50 -0.03 74
IV.MF5.EHZ. 2021-11-22T00:26:44.86 0.6 positive manual P 43 0.2527 50 0.11 49
IV.MC2.EHZ. 2021-11-22T00:26:44.98 0.1 undecidable manual S 347 0.1106 132 0.29 96
IV.GAVE.EHZ. 2021-11-22T00:26:44.92 0.6 positive manual P 245 0.2662 50 -0.07 49
IV.SMA1.EHZ. 2021-11-22T00:26:43.66 0.6 positive manual P 155 0.1916 50 -0.05 50
IV.MC2.EHZ. 2021-11-22T00:26:42.40 0.1 undecidable manual P 347 0.1106 132 0.12 100
IV.MMO1.EHZ. 2021-11-22T00:26:42.39 0.6 undecidable manual P 38 0.1214 129 -0.08 50
IV.MTRA.EHZ. 2021-11-22T00:26:42.70 0.3 undecidable manual P 110 0.1358 126 -0.01 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MMO1.EHE. ML:2.1 0.0011695 0.08 AML other m 2021-11-22T00:26:45.00
IV.MMO1.EHN. ML:1.6 0.000371 1.82 AML other m 2021-11-22T00:26:45.07
IV.MC2.EHN. ML:1.7 0.000496 0.84 AML other m 2021-11-22T00:26:45.74
IV.MTRA.EHE. ML:1.4 0.0002505 1.06 AML other m 2021-11-22T00:26:45.01
IV.MTRA.EHN. ML:1.3 0.00019 0.28 AML other m 2021-11-22T00:26:45.86
IV.MC2.EHE. ML:1.5 0.000368 0.98 AML other m 2021-11-22T00:26:46.71
IV.SMA1.EHN. ML:0.8 4.16E-5 0.84 AML other m 2021-11-22T00:26:48.36
IV.FDMO.HHE. ML:1.1 6.025E-5 0.42 AML other m 2021-11-22T00:26:49.02
IV.SMA1.EHE. ML:0.8 4.41E-5 0.48 AML other m 2021-11-22T00:26:49.12
IV.FDMO.HHN. ML:1.1 6.67E-5 0.14 AML other m 2021-11-22T00:26:49.22
IV.LNSS.HHE. ML:1.3 0.00010615 0.42 AML other m 2021-11-22T00:26:49.48
IV.LNSS.HHN. ML:1.5 0.000156 0.14 AML other m 2021-11-22T00:26:49.79
IV.GAVE.EHE. ML:1.3 9.775E-5 0.2 AML other m 2021-11-22T00:26:49.82
IV.MF5.EHN. ML:1.1 6.84E-5 1.5 AML other m 2021-11-22T00:26:50.17
IV.MF5.EHE. ML:1.2 8.385E-5 0.56 AML other m 2021-11-22T00:26:50.46
IV.GUMA.HHE. ML:2 0.000457 0.26 AML other m 2021-11-22T00:26:50.21
IV.CSP1.EHE. ML:1.4 0.00010455 0.5 AML other m 2021-11-22T00:26:50.51
IV.GUMA.HNN. ML:1.9 0.0004005 0.3 AML other m 2021-11-22T00:26:50.21
IV.GUMA.HHN. ML:1.9 0.000361 0.48 AML other m 2021-11-22T00:26:50.39
IV.CSP1.EHN. ML:1.4 0.000125 0.82 AML other m 2021-11-22T00:26:50.96
IV.RM33.EHN. ML:1.1 5.56E-5 0.22 AML other m 2021-11-22T00:26:50.82
IV.GAVE.EHN. ML:1.3 8.815E-5 0.92 AML other m 2021-11-22T00:26:50.28
IV.CESI.HHN. ML:1.6 0.0001595 1.56 AML other m 2021-11-22T00:26:50.01
IV.RM33.EHE. ML:1.3 8.71E-5 0.72 AML other m 2021-11-22T00:26:51.16
IV.CESI.HHE. ML:1.2 6.015E-5 1.46 AML other m 2021-11-22T00:26:51.23
IV.GUMA.HNE. ML:1.8 0.0003045 0.32 AML other m 2021-11-22T00:26:51.75
IV.MML1.EHN. ML:0.9 3.03E-5 1.36 AML other m 2021-11-22T00:26:52.98
IV.MML1.EHE. ML:1 3.365E-5 0.2 AML other m 2021-11-22T00:26:52.67
IV.MNTT.EHN. ML:1.7 0.0001745 0.8 AML other m 2021-11-22T00:26:55.40
IV.ASSB.HHN. ML:1 2.41E-5 0.22 AML other m 2021-11-22T00:26:56.22
IV.ASSB.HHE. ML:1.2 3.265E-5 0.22 AML other m 2021-11-22T00:26:56.11
IV.MNTT.EHE. ML:1.5 0.00010445 0.5 AML other m 2021-11-22T00:26:56.52
IV.MOMA.HHN. ML:1 2.32E-5 1.12 AML other m 2021-11-22T00:26:57.43
IV.MOMA.HHE. ML:1.1 2.985E-5 0.96 AML other m 2021-11-22T00:26:58.63
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