Earthquake with magnitude of ML 1.1 on date 05-12-2021 and time 17:28:47 (Italy) in region 5 km E Accumoli (RI)

A magnitude ML 1.1 earthquake occured in region: 5 km E Accumoli (RI), on

  • 05-12-2021 16:28:47 (UTC)
  • 05-12-2021 17:28:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.689, 13.304 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 5 667 667
Amatrice RI 7 2657 3324
Arquata del Tronto AP 9 1178 4502
Acquasanta Terme AP 13 2916 7418
Cittareale RI 14 482 7900
Campotosto AQ 16 542 8442
Valle Castellana TE 17 977 9419
Montegallo AP 17 523 9942
Cortino TE 18 656 10598
Rocca Santa Maria TE 18 537 11135
Capitignano AQ 19 665 11800
Montereale AQ 19 2581 14381

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km W of Teramo (54892 inhabitants)
38 Km N of L'Aquila (69753 inhabitants)
56 Km E of Terni (111501 inhabitants)
57 Km SE of Foligno (57155 inhabitants)
72 Km W of Montesilvano (53738 inhabitants)
79 Km W of Pescara (121014 inhabitants)
80 Km W of Chieti (51815 inhabitants)
88 Km SE of Perugia (166134 inhabitants)
90 Km NE of Guidonia Montecelio (88673 inhabitants)
91 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 1.1 2021-12-05
16:28:47
42.6892 13.3042 10 2021-12-05
16:34:40
Sala Sismica INGV-Roma 98183751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-05 16:28:47 ± 0.1
Latitude 42.6892 ± 0.0045
Longitude 13.3042 ± 0.0073
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 98183751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 536
Semi-minor axis of confidence ellipse (meter) 380
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 233
Circular confidence region, given by single value of horizontal uncertainty (meter) 540
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 41
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
Epicentral distance of station farthest from the epicenter (degree) 0.31926
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 98183751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-05 16:34:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SPS2.HHZ. 2021-12-05T16:30:48.38 3.0 undecidable manual Sg 3.67 0
IV.VOBA.EHZ. 2021-12-05T16:30:39.54 3.0 undecidable manual Sg 12.13 0
IV.ZEN8.EHZ. 2021-12-05T16:30:29.94 3.0 undecidable manual Sg 4.8 0
OX.MARN.HHZ. 2021-12-05T16:30:22.02 3.0 undecidable manual Sn 0.93 0
AC.PUK.HHZ. 2021-12-05T16:30:14.12 3.0 undecidable manual Pg 8.89 0
IX.SFL3.HNZ.01 2021-12-05T16:30:09.45 3.0 undecidable manual Sg 2.5 0
IV.CAVT.HHZ. 2021-12-05T16:30:05.16 3.0 negative manual Pn -0.78 0
IV.MCRV.HHZ. 2021-12-05T16:29:55.64 3.0 undecidable manual Sn -6.63 0
IV.VOBA.EHZ. 2021-12-05T16:29:53.25 3.0 positive manual Pg 9.08 0
IV.PCN.EHZ. 2021-12-05T16:29:52.83 3.0 positive manual Pg 9.86 0
IV.IMOL.HNZ. 2021-12-05T16:29:46.75 3.0 undecidable manual Sn -2.67 0
IV.OSSC.HHZ. 2021-12-05T16:29:40.45 3.0 undecidable manual Sn -1.53 0
IV.ZEN8.EHZ. 2021-12-05T16:29:40.76 3.0 undecidable manual Pn -2.14 0
IV.NDIM.HHZ. 2021-12-05T16:29:34.77 3.0 negative manual Pn 1.21 0
IX.SCL3.EHZ.02 2021-12-05T16:29:30.22 3.0 undecidable manual Pn -2.98 0
IV.PE3.EHZ. 2021-12-05T16:29:26.58 3.0 undecidable manual S -1.68 0
IX.COL3.HHZ.02 2021-12-05T16:29:25.24 3.0 undecidable manual Pn -6.87 0
IV.IMOL.HNZ. 2021-12-05T16:29:21.83 3.0 undecidable manual Pn -1 0
IV.NARO.HHZ. 2021-12-05T16:29:20.00 3.0 undecidable manual S -4.84 0
IV.RCAV.EHZ. 2021-12-05T16:29:06.48 3.0 undecidable manual P -1.4 0
IV.MOMA.HNZ. 2021-12-05T16:29:05.95 3.0 undecidable manual S -1.05 0
IV.MF5.EHZ. 2021-12-05T16:29:00.35 0.6 undecidable manual S 21 0.3193 50 0.49 46
IV.GAVE.HNZ. 2021-12-05T16:28:59.18 0.6 undecidable manual S 271 0.3013 50 -0.14 50
IV.MC2.EHZ. 2021-12-05T16:28:57.00 0.6 undecidable manual S 339 0.2374 110 -0.34 48
IV.LNSS.HHZ. 2021-12-05T16:28:56.74 0.6 undecidable manual S 246 0.2122 112 0.32 49
IV.TERO.HHZ. 2021-12-05T16:28:56.46 0.6 undecidable manual S 107 0.2302 111 -0.61 45
IV.CAMP.HHZ. 2021-12-05T16:28:55.10 0.6 undecidable manual S 153 0.1718 117 0.11 51
IV.RM33.EHZ. 2021-12-05T16:28:55.94 0.6 undecidable manual S 200 0.1916 114 0.25 50
IV.NRCA.HHZ. 2021-12-05T16:28:55.41 0.6 undecidable manual S 316 0.2005 113 -0.6 45
IV.GAVE.HNZ. 2021-12-05T16:28:54.09 0.1 undecidable manual P 271 0.3013 50 -0.28 96
IV.MF5.EHZ. 2021-12-05T16:28:54.78 0.6 positive manual P 21 0.3193 50 0.1 50
IV.MC2.EHZ. 2021-12-05T16:28:53.81 0.1 undecidable manual P 339 0.2374 110 0.59 90
IV.NRCA.HHZ. 2021-12-05T16:28:52.15 1.0 undecidable manual P 316 0.2005 113 -0.31 24
IV.LNSS.HHZ. 2021-12-05T16:28:52.25 1.0 undecidable manual P 246 0.2122 112 -0.44 24
IV.MTRA.HNZ. 2021-12-05T16:28:52.46 0.6 undecidable manual S 45 0.0953 132 -0.1 52
IV.RM33.EHZ. 2021-12-05T16:28:52.40 0.6 undecidable manual P 200 0.1916 114 0.12 51
IV.TERO.HHZ. 2021-12-05T16:28:52.92 0.6 undecidable manual P 107 0.2302 111 -0.14 50
IV.SMA1.EHZ. 2021-12-05T16:28:51.73 0.6 undecidable manual S 159 0.063 144 0.02 53
IV.CAMP.HHZ. 2021-12-05T16:28:51.65 0.1 undecidable manual P 153 0.1718 117 -0.22 100
IV.SMA1.EHZ. 2021-12-05T16:28:50.48 0.6 negative manual P 159 0.063 144 0.51 48
IV.MTRA.HNZ. 2021-12-05T16:28:50.64 0.3 positive manual P 45 0.0953 132 0.18 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.1 0.000182415265 0.1152 AML other m 2021-12-05T16:28:52.32
IV.SMA1.EHE. ML:1.1 0.00019870419 0.2944 AML other m 2021-12-05T16:28:52.38
IV.MTRA.EHN. ML:1.2 0.0001837483 0.0512 AML other m 2021-12-05T16:28:52.58
IV.MTRA.EHE. ML:1 0.000133467355 0.0512 AML other m 2021-12-05T16:28:52.68
IV.MTRA.HNE. ML:1 0.00013982868 0.064 AML other m 2021-12-05T16:28:52.68
IV.MTRA.HNN. ML:1.2 0.00018618085 0.064 AML other m 2021-12-05T16:28:52.57
IV.NRCA.HNE. ML:1.2 9.59679E-5 0.5888 AML other m 2021-12-05T16:28:55.10
IV.NRCA.HHE. ML:0.8 3.9466745E-5 0.1024 AML other m 2021-12-05T16:28:56.83
IV.NRCA.HHN. ML:0.6 3.19609795E-5 0.0768 AML other m 2021-12-05T16:28:56.12
IV.LNSS.HNE. ML:1.3 0.00012638742 0.6016 AML other m 2021-12-05T16:29:02.86
IV.LNSS.HNN. ML:1.4 0.000137902265 0.7296 AML other m 2021-12-05T16:29:02.66
IV.LNSS.HHN. ML:0.7 3.424482E-5 0.1408 AML other m 2021-12-05T16:28:58.12
IV.RM33.EHE. ML:0.7 3.455088E-5 0.32 AML other m 2021-12-05T16:28:56.04
IV.RM33.EHN. ML:0.6 2.80095E-5 0.1152 AML other m 2021-12-05T16:28:56.92
IV.TERO.HHE. ML:2.3 0.00127226895 0.4224 AML other m 2021-12-05T16:28:57.27
IV.TERO.HHN. ML:0.7 2.869827E-5 0.3968 AML other m 2021-12-05T16:29:00.39
IV.TERO.HNE. ML:1.2 9.8919935E-5 0.6656 AML other m 2021-12-05T16:29:02.37
IV.MF5.EHE. ML:1.5 0.00012595697 2.3936 AML other m 2021-12-05T16:29:04.60
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