Earthquake with magnitude of ML 1.4 on date 17-07-2021 and time 18:33:36 (UTC) in region 6 km NW Cortino (TE)

A magnitude ML 1.4 earthquake occured in region: 6 km NW Cortino (TE), on

  • 17-07-2021 18:33:36 (UTC)
  • 17-07-2021 20:33:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.65, 13.445 at 17 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
Cortino TE 6 656 656
Rocca Santa Maria TE 8 537 1193
Valle Castellana TE 11 977 2170
Crognaleto TE 12 1297 3467
Campotosto AQ 12 542 4009
Amatrice RI 13 2657 6666
Fano Adriano TE 13 296 6962
Acquasanta Terme AP 14 2916 9878
Pietracamela TE 17 271 10149
Accumoli RI 17 667 10816
Montorio al Vomano TE 17 8218 19034
Torricella Sicura TE 17 2641 21675
Arquata del Tronto AP 18 1178 22853
Capitignano AQ 19 665 23518

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km W of Teramo (54892 inhabitants)
33 Km N of L'Aquila (69753 inhabitants)
60 Km W of Montesilvano (53738 inhabitants)
66 Km E of Terni (111501 inhabitants)
66 Km W of Pescara (121014 inhabitants)
68 Km W of Chieti (51815 inhabitants)
69 Km SE of Foligno (57155 inhabitants)
93 Km NE of Tivoli (56533 inhabitants)
93 Km NE of Guidonia Montecelio (88673 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 1.4 2021-07-17
18:33:36
42.6498 13.4447 17 2021-07-17
18:45:03
Sala Sismica INGV-Roma 92884331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-17 18:33:36 ± 0.09
Latitude 42.6498 ± 0.0027
Longitude 13.4447 ± 0.0061
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 92884331

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 491
Semi-minor axis of confidence ellipse (meter) 170
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 250
Circular confidence region, given by single value of horizontal uncertainty (meter) 490
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 114
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.57826
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 16
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 92884331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-17 18:45:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PLLN.EHZ. 2021-07-17T18:35:15.39 3.0 undecidable manual Sn -9.99 0
HL.VLS.HHZ. 2021-07-17T18:35:15.58 3.0 undecidable manual Pn -0.53 0
IV.MBAL.EHZ. 2021-07-17T18:35:11.39 3.0 undecidable manual Sn 0.67 0
IV.GRI.EHZ. 2021-07-17T18:34:45.86 3.0 undecidable manual Pg 6.51 0
IX.SCL3.EHZ.02 2021-07-17T18:34:43.13 3.0 undecidable manual Sg -0.02 0
IV.MFNL.HHZ. 2021-07-17T18:34:40.90 3.0 positive manual Pg -3.02 0
MN.CLTB.HHZ. 2021-07-17T18:34:37.16 3.0 negative manual Pn -9.57 0
IV.SARZ.HHZ. 2021-07-17T18:34:35.05 3.0 positive manual Pn 2.23 0
GU.RNCA.HHZ. 2021-07-17T18:34:31.62 3.0 undecidable manual Pn 2.04 0
IV.BRSN.EHZ. 2021-07-17T18:34:30.13 3.0 undecidable manual Sn -0.15 0
IV.MAGA.HHZ. 2021-07-17T18:34:29.75 3.0 undecidable manual Pn -0.71 0
IV.MML1.EHZ. 2021-07-17T18:33:56.48 0.3 undecidable manual S 323 0.5783 96 0.32 65
IV.T0110.HHZ. 2021-07-17T18:33:54.02 0.3 undecidable manual S 150 0.4865 98 0.58 61
IV.CSP1.EHZ. 2021-07-17T18:33:53.37 0.3 undecidable manual S 338 0.4757 98 0.24 68
IV.FDMO.HHZ. 2021-07-17T18:33:52.88 0.3 undecidable manual S 326 0.4667 98 0.01 70
IV.GUMA.HHZ. 2021-07-17T18:33:52.41 0.3 undecidable manual S 349 0.42 99 0.89 55
IV.MC2.EHZ. 2021-07-17T18:33:49.06 0.3 undecidable manual S 324 0.322 104 0.41 67
IV.LNSS.HHZ. 2021-07-17T18:33:48.28 0.3 undecidable manual S 261 0.3013 105 0.23 71
IV.MML1.EHZ. 2021-07-17T18:33:47.69 0.1 undecidable manual P 323 0.5783 96 -0.15 89
IV.NRCA.HHZ. 2021-07-17T18:33:47.91 0.3 undecidable manual S 307 0.304 105 -0.24 69
IV.T0110.HHZ. 2021-07-17T18:33:46.32 0.1 undecidable manual P 150 0.4865 98 0.05 93
IV.MMO1.EHZ. 2021-07-17T18:33:46.80 0.3 undecidable manual S 341 0.2635 108 -0.2 70
IV.GUMA.HHZ. 2021-07-17T18:33:45.34 0.1 undecidable manual P 349 0.42 99 0.19 92
IV.FDMO.HHZ. 2021-07-17T18:33:45.64 0.1 undecidable manual P 326 0.4667 98 -0.3 88
IV.GIGS.HJZ. 2021-07-17T18:33:45.29 0.3 undecidable manual S 154 0.2176 113 -0.44 68
IV.CSP1.EHZ. 2021-07-17T18:33:45.88 0.1 undecidable manual P 338 0.4757 98 -0.21 90
IV.RM33.EHZ. 2021-07-17T18:33:45.92 0.3 undecidable manual S 230 0.2203 113 0.14 73
IV.LNSS.HHZ. 2021-07-17T18:33:43.14 0.3 undecidable manual P 261 0.3013 105 -0.02 72
IV.T1299.HNZ. 2021-07-17T18:33:43.50 0.3 undecidable manual S 263 0.1205 134 0.21 73
IV.CAMP.HHZ. 2021-07-17T18:33:43.19 0.3 undecidable manual S 193 0.1169 135 -0.03 75
IV.MC2.EHZ. 2021-07-17T18:33:43.43 0.1 undecidable manual P 324 0.322 104 -0.08 95
IV.TERO.HHZ. 2021-07-17T18:33:43.09 0.3 undecidable manual S 103 0.1205 134 -0.19 74
IV.SMA1.EHZ. 2021-07-17T18:33:42.38 0.3 undecidable manual S 257 0.0827 146 -0.18 73
IV.MTRA.HNZ. 2021-07-17T18:33:42.85 0.3 undecidable manual S 342 0.1124 136 -0.28 72
IV.MMO1.EHZ. 2021-07-17T18:33:42.37 0.1 undecidable manual P 341 0.2635 108 -0.19 94
IV.NRCA.HHZ. 2021-07-17T18:33:42.97 0.1 undecidable manual P 307 0.304 105 -0.25 92
IV.GIGS.HJZ. 2021-07-17T18:33:41.70 0.1 undecidable manual P 154 0.2176 113 -0.11 97
IV.RM33.EHZ. 2021-07-17T18:33:41.90 0.1 undecidable manual P 230 0.2203 113 0.05 99
IV.TERO.HHZ. 2021-07-17T18:33:40.42 0.1 undecidable manual P 103 0.1205 134 0.01 100
IV.SMA1.EHZ. 2021-07-17T18:33:40.10 0.1 undecidable manual P 257 0.0827 146 0.11 99
IV.T1299.HNZ. 2021-07-17T18:33:40.62 0.1 undecidable manual P 263 0.1205 134 0.2 97
IV.MTRA.HNZ. 2021-07-17T18:33:40.17 0.1 undecidable manual P 342 0.1124 136 -0.14 98
IV.CAMP.HHZ. 2021-07-17T18:33:40.44 0.1 undecidable manual P 193 0.1169 135 0.07 100
IV.RMP.HHZ. 2021-07-17T18:33:34.62 3.0 positive manual P -9.99 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:1.2 0.00011713883 0.1024 AML other m 2021-07-17T18:33:43.14
IV.MTRA.EHN. ML:1.2 0.00013583775 0.2176 AML other m 2021-07-17T18:33:43.22
IV.NRCA.HHN. ML:1.5 0.0001345 1.92 AML other m 2021-07-17T18:33:47.03
IV.RM33.EHE. ML:1 5.2674195E-5 0.2176 AML other m 2021-07-17T18:33:47.47
IV.NRCA.HHE. ML:1.6 0.0001485 0.1 AML other m 2021-07-17T18:33:48.52
IV.RM33.EHN. ML:1 4.772719E-5 0.0768 AML other m 2021-07-17T18:33:47.86
IV.LNSS.HHN. ML:1.4 0.0001125 0.74 AML other m 2021-07-17T18:33:48.53
IV.LNSS.HHE. ML:1.4 0.00010305 0.24 AML other m 2021-07-17T18:33:50.26
IV.GUMA.HHN. ML:2.2 0.00044 0.18 AML other m 2021-07-17T18:33:52.62
IV.GUMA.HNE. ML:2.1 0.0003085 0.38 AML other m 2021-07-17T18:33:52.60
IV.GUMA.HHE. ML:2.1 0.000314 0.48 AML other m 2021-07-17T18:33:52.56
IV.CSP1.EHE. ML:1.6 9.5371895E-5 0.2048 AML other m 2021-07-17T18:33:54.90
IV.CSP1.EHN. ML:1.5 8.20285445E-5 0.192 AML other m 2021-07-17T18:33:55.06
IV.MTRA.HNN. ML:1.2 0.000138888 0.2176 AML other m 2021-07-17T18:33:43.21
IV.TERO.HHE. ML:1.1 0.000107410685 0.064 AML other m 2021-07-17T18:33:43.16
IV.TERO.HHN. ML:1.5 0.0002325564 0.064 AML other m 2021-07-17T18:33:43.13
IV.FDMO.HHE. ML:1.1 3.0791555E-5 0.2176 AML other m 2021-07-17T18:33:53.08
IV.FDMO.HHN. ML:1.1 2.811034E-5 0.2816 AML other m 2021-07-17T18:33:54.71
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