Earthquake with magnitude of ML 1.5 on date 13-10-2021 and time 02:45:20 (UTC) in region 4 km SW Capitignano (AQ)

A magnitude ML 1.5 earthquake occured in region: 4 km SW Capitignano (AQ), on

  • 13-10-2021 02:45:20 (UTC)
  • 13-10-2021 04:45:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.491, 13.287 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
Capitignano AQ 4 665 665
Barete AQ 4 737 1402
Montereale AQ 5 2581 3983
Pizzoli AQ 6 4326 8309
Cagnano Amiterno AQ 6 1369 9678
Campotosto AQ 10 542 10220
Borbona RI 13 617 10837
Scoppito AQ 14 3727 14564
Amatrice RI 16 2657 17221
Posta RI 16 694 17915
Crognaleto TE 17 1297 19212
Cittareale RI 18 482 19694
L'Aquila AQ 18 69753 89447
Antrodoco RI 19 2588 92035
Micigliano RI 20 127 92162

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NW of L'Aquila (69753 inhabitants)
39 Km W of Teramo (54892 inhabitants)
53 Km E of Terni (111501 inhabitants)
70 Km SE of Foligno (57155 inhabitants)
71 Km W of Montesilvano (53738 inhabitants)
71 Km NE of Tivoli (56533 inhabitants)
71 Km NE of Guidonia Montecelio (88673 inhabitants)
74 Km W of Chieti (51815 inhabitants)
76 Km W of Pescara (121014 inhabitants)
94 Km NE of Roma (2864731 inhabitants)
97 Km E of Viterbo (67173 inhabitants)
99 Km NE of Velletri (53303 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 1.5 2021-10-13
02:45:20
42.491 13.2873 14 2021-10-13
02:51:52
Sala Sismica INGV-Roma 96483961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-13 02:45:20 ± 0.07
Latitude 42.4910 ± 0.0036
Longitude 13.2873 ± 0.0049
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96483961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 390
Semi-minor axis of confidence ellipse (meter) 127
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 89
Circular confidence region, given by single value of horizontal uncertainty (meter) 390
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 80
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.40919
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 96483961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-13 02:51:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VCRE.HHZ. 2021-10-13T02:46:17.26 3.0 undecidable manual Sn 0.78 0
OT.OT17.EHZ. 2021-10-13T02:46:12.30 3.0 undecidable manual Sn -0.74 0
IV.TST02.HHZ. 2021-10-13T02:45:41.55 3.0 positive manual P 2.11 0
IV.MMO1.EHZ. 2021-10-13T02:45:35.83 0.3 undecidable manual S 4 0.4092 95 0.3 67
IV.NRCA.HHZ. 2021-10-13T02:45:34.31 0.6 undecidable manual S 340 0.3651 96 0.07 47
IV.GAVE.EHZ. 2021-10-13T02:45:33.82 0.3 undecidable manual S 305 0.3525 97 -0.04 72
IV.GUMA.HHZ. 2021-10-13T02:45:32.65 3.0 negative manual P 0.28 0
IV.FDMO.HHZ. 2021-10-13T02:45:32.05 3.0 undecidable manual P -0.21 0
IV.FAGN.HHZ. 2021-10-13T02:45:32.96 1.0 undecidable manual S 136 0.3139 98 0.23 23
IV.CSP1.EHZ. 2021-10-13T02:45:32.73 3.0 positive manual P -0.22 0
IV.MF5.EHZ. 2021-10-13T02:45:31.62 3.0 undecidable manual P 0.34 0
IV.MTRA.EHZ. 2021-10-13T02:45:31.36 0.1 undecidable manual S 17 0.277 100 -0.3 91
IV.FIAM.HHZ. 2021-10-13T02:45:30.79 0.3 undecidable manual S 209 0.2554 101 -0.24 69
IV.TERO.HHZ. 2021-10-13T02:45:30.94 0.3 undecidable manual S 60 0.268 100 -0.43 66
IV.T0110.HHZ. 2021-10-13T02:45:30.34 3.0 positive manual P -0.19 0
IV.VCEL.EHZ. 2021-10-13T02:45:30.19 3.0 negative manual P 0.25 0
IV.MMO1.EHZ. 2021-10-13T02:45:29.34 0.1 undecidable manual P 4 0.4092 95 -0.01 94
IV.LNSS.HHZ. 2021-10-13T02:45:29.86 0.3 undecidable manual S 302 0.2131 105 0.05 73
IV.ARRO.EHZ. 2021-10-13T02:45:29.11 3.0 positive manual P -0.32 0
IV.FAGN.HHZ. 2021-10-13T02:45:28.07 0.6 undecidable manual P 136 0.3139 98 0.34 46
IV.GAVE.EHZ. 2021-10-13T02:45:28.38 0.1 undecidable manual P 305 0.3525 97 -0.01 96
IV.SMA1.EHZ. 2021-10-13T02:45:28.04 0.3 undecidable manual S 14 0.1439 118 0.16 73
IV.NRCA.HHZ. 2021-10-13T02:45:28.59 0.1 positive manual P 340 0.3651 96 -0.02 95
IV.MTRA.EHZ. 2021-10-13T02:45:27.00 0.1 undecidable manual P 17 0.277 100 -0.12 95
IV.LNSS.HHZ. 2021-10-13T02:45:26.19 0.1 undecidable manual P 302 0.2131 105 0.14 96
IV.FIAM.HHZ. 2021-10-13T02:45:26.83 0.3 undecidable manual P 209 0.2554 101 0.08 73
IV.TERO.HHZ. 2021-10-13T02:45:26.92 0.3 undecidable manual P 60 0.268 100 -0.03 72
IV.RM33.EHZ. 2021-10-13T02:45:25.67 0.3 undecidable manual S 289 0.0567 150 -0.33 70
IV.SMA1.EHZ. 2021-10-13T02:45:25.17 0.1 undecidable manual P 14 0.1439 118 0.24 96
IV.RM33.EHZ. 2021-10-13T02:45:23.99 0.1 negative manual P 289 0.0567 150 0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:1.3 0.0002255 1.72 AML other m 2021-10-13T02:45:25.94
IV.RM33.EHN. ML:1.4 0.000306 1.72 AML other m 2021-10-13T02:45:26.02
IV.SMA1.EHN. ML:2 0.00072 0.34 AML other m 2021-10-13T02:45:28.70
IV.SMA1.EHE. ML:1.7 0.000373 1.34 AML other m 2021-10-13T02:45:28.19
IV.LNSS.HHE. ML:1.7 0.0002595 0.16 AML other m 2021-10-13T02:45:30.33
IV.LNSS.HHN. ML:1.6 0.0002045 0.82 AML other m 2021-10-13T02:45:30.28
IV.FIAM.HHE. ML:0.7 2.395E-5 0.68 AML other m 2021-10-13T02:45:31.60
IV.MTRA.HNE. ML:2 0.0004205 0.16 AML other m 2021-10-13T02:45:31.86
IV.MTRA.EHE. ML:2 0.0004175 0.16 AML other m 2021-10-13T02:45:31.86
IV.MTRA.EHN. ML:1.8 0.0002515 0.2 AML other m 2021-10-13T02:45:31.80
IV.MTRA.HNN. ML:1.7 0.0002465 0.2 AML other m 2021-10-13T02:45:31.80
IV.FIAM.HHN. ML:0.7 2.385E-5 1.2 AML other m 2021-10-13T02:45:33.99
IV.GAVE.EHE. ML:1.4 7.94E-5 0.14 AML other m 2021-10-13T02:45:34.06
IV.GAVE.EHN. ML:1.3 6.72E-5 1.42 AML other m 2021-10-13T02:45:34.16
IV.ARRO.EHE. ML:1 2.785E-5 0.22 AML other m 2021-10-13T02:45:35.39
IV.FAGN.HHN. ML:1.4 9.74E-5 0.44 AML other m 2021-10-13T02:45:35.39
IV.NRCA.HHE. ML:1.7 0.000164 0.14 AML other m 2021-10-13T02:45:35.50
IV.NRCA.HHN. ML:1.6 0.0001265 0.1 AML other m 2021-10-13T02:45:35.96
IV.FAGN.HHE. ML:1.5 0.0001345 0.3 AML other m 2021-10-13T02:45:37.38
IV.ARRO.EHN. ML:0.9 2.58E-5 0.54 AML other m 2021-10-13T02:45:39.29
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