Earthquake with magnitude of ML 0.9 on date 13-10-2021 and time 02:53:57 (UTC) in region 2 km N Barete (AQ)

A magnitude ML 0.9 earthquake occured in region: 2 km N Barete (AQ), on

  • 13-10-2021 02:53:57 (UTC)
  • 13-10-2021 04:53:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.472, 13.288 at 14 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
Barete AQ 2 737 737
Pizzoli AQ 4 4326 5063
Cagnano Amiterno AQ 5 1369 6432
Capitignano AQ 6 665 7097
Montereale AQ 7 2581 9678
Scoppito AQ 11 3727 13405
Campotosto AQ 12 542 13947
Borbona RI 14 617 14564
L'Aquila AQ 16 69753 84317
Posta RI 17 694 85011
Amatrice RI 18 2657 87668
Crognaleto TE 18 1297 88965
Antrodoco RI 18 2588 91553
Micigliano RI 19 127 91680
Cittareale RI 19 482 92162
Tornimparte AQ 20 3187 95349

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km NW of L'Aquila (69753 inhabitants)
40 Km SW of Teramo (54892 inhabitants)
54 Km E of Terni (111501 inhabitants)
69 Km NE of Tivoli (56533 inhabitants)
70 Km NE of Guidonia Montecelio (88673 inhabitants)
71 Km W of Montesilvano (53738 inhabitants)
72 Km SE of Foligno (57155 inhabitants)
74 Km W of Chieti (51815 inhabitants)
76 Km W of Pescara (121014 inhabitants)
92 Km NE of Roma (2864731 inhabitants)
97 Km NE of Velletri (53303 inhabitants)
97 Km E of Viterbo (67173 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 0.9 2021-10-13
02:53:57
42.4717 13.2883 14 2021-10-13
03:05:19
Sala Sismica INGV-Roma 96484331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-13 02:53:57 ± 0.3
Latitude 42.4717 ± 0.0135
Longitude 13.2883 ± 0.0232
Depth (km) 14 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96484331

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1635
Semi-minor axis of confidence ellipse (meter) 1627
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 270
Circular confidence region, given by single value of horizontal uncertainty (meter) 1630
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 247
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 6
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) 0.38401
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 96484331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-13 03:05:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MSSA.HHZ. 2021-10-13T02:55:43.45 3.0 undecidable manual Sg 16.219999 0
IV.BAG8.EHZ. 2021-10-13T02:54:59.14 3.0 undecidable manual Pn 3.2 0
IV.IMOL.EHZ. 2021-10-13T02:54:58.78 3.0 undecidable manual Sn -0.79 0
IV.FIR.HHZ. 2021-10-13T02:54:55.20 3.0 undecidable manual Sn 0.65 0
IV.SEI.HHZ. 2021-10-13T02:54:29.34 3.0 negative manual Pn -2.03 0
IV.CASP.HHZ. 2021-10-13T02:54:26.98 3.0 negative manual Pg -0.64 0
IV.SMA1.EHZ. 2021-10-13T02:54:05.04 0.1 undecidable manual S 12 0.1628 114 -0.03 99
IV.NRCA.HHZ. 2021-10-13T02:54:05.46 0.1 negative manual P 341 0.384 96 -0.14 93
IV.TERO.HHZ. 2021-10-13T02:54:03.72 0.6 undecidable manual P 57 0.277 100 -0.07 48
IV.RM33.EHZ. 2021-10-13T02:54:02.78 0.1 undecidable manual S 304 0.0657 146 -0.08 100
IV.SMA1.EHZ. 2021-10-13T02:54:02.18 0.3 negative manual P 12 0.1628 114 0.27 70
IV.RM33.EHZ. 2021-10-13T02:54:00.86 1.0 undecidable manual P 304 0.0657 146 0.23 24
IV.FIAM.HHZ. 2021-10-13T02:53:57.94 3.0 undecidable manual P -6.27 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:0.7 6.16E-5 1.7 AML other m 2021-10-13T02:54:02.02
IV.RM33.EHN. ML:0.7 4.975E-5 1.78 AML other m 2021-10-13T02:54:03.09
IV.SMA1.EHE. ML:1.2 0.0001254 0.2 AML other m 2021-10-13T02:54:05.40
IV.SMA1.EHN. ML:0.9 5.28E-5 0.26 AML other m 2021-10-13T02:54:05.59
IV.FIR.HNE. ML:3.1 0.000303 0.08 AML other m 2021-10-13T02:54:55.80
IV.FIR.HHE. ML:3.1 0.000326 0.06 AML other m 2021-10-13T02:54:55.80
IV.FIR.HNN. ML:3.1 0.000304 1.32 AML other m 2021-10-13T02:54:59.77
IV.FIR.HHN. ML:3 0.0002695 0.88 AML other m 2021-10-13T02:54:59.77
IV.IMOL.HNE. ML:4.7 0.01056 0.64 AML other m 2021-10-13T02:55:11.44
IV.IMOL.HNN. ML:4.8 0.0134 0.04 AML other m 2021-10-13T02:55:11.15
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