Earthquake with magnitude of ML 1.6 on date 31-05-2021 and time 06:47:14 (UTC) in region 4 km SW Cortino (TE)

A magnitude ML 1.6 earthquake occured in region: 4 km SW Cortino (TE), on

  • 31-05-2021 06:47:14 (UTC)
  • 31-05-2021 08:47:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.598, 13.476 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
Cortino TE 4 656 656
Crognaleto TE 6 1297 1953
Fano Adriano TE 7 296 2249
Campotosto AQ 10 542 2791
Pietracamela TE 10 271 3062
Rocca Santa Maria TE 11 537 3599
Montorio al Vomano TE 13 8218 11817
Tossicia TE 15 1406 13223
Valle Castellana TE 16 977 14200
Amatrice RI 16 2657 16857
Torricella Sicura TE 16 2641 19498
Capitignano AQ 17 665 20163
Colledara TE 18 2179 22342
Isola del Gran Sasso d'Italia TE 19 4773 27115
Acquasanta Terme AP 20 2916 30031

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km W of Teramo (54892 inhabitants)
28 Km N of L'Aquila (69753 inhabitants)
56 Km W of Montesilvano (53738 inhabitants)
62 Km W of Pescara (121014 inhabitants)
63 Km W of Chieti (51815 inhabitants)
68 Km E of Terni (111501 inhabitants)
75 Km SE of Foligno (57155 inhabitants)
90 Km NE of Tivoli (56533 inhabitants)
91 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 the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.6 2021-05-31
06:47:14
42.5977 13.4763 11 2021-05-31
06:55:01
Sala Sismica INGV-Roma 90654161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-31 06:47:14 ± 0.06
Latitude 42.5977 ± 0.0036
Longitude 13.4763 ± 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 90654161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 463
Semi-minor axis of confidence ellipse (meter) 260
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) 460
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 34
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) 0.78061
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 90654161
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-31 06:55:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MTMR.HNZ. 2021-05-31T06:48:14.10 3.0 undecidable manual Sn 0.28 0
IV.PTRJ.HNZ. 2021-05-31T06:47:59.77 3.0 undecidable manual S -0.17 0
IV.BRSN.HNZ. 2021-05-31T06:47:49.53 3.0 negative manual Pg 3.01 0
IV.VVLD.HHZ. 2021-05-31T06:47:37.31 3.0 undecidable manual S -4.12 0
IV.INTR.HHZ. 2021-05-31T06:47:37.29 3.0 undecidable manual S -1.93 0
IV.CSP1.EHZ. 2021-05-31T06:47:33.73 0.6 undecidable manual S 338 0.5324 50 0.53 42
IV.FDMO.HHZ. 2021-05-31T06:47:33.00 0.3 undecidable manual S 327 0.5234 50 0.08 71
IV.T0110.HHZ. 2021-05-31T06:47:30.13 0.6 undecidable manual S 149 0.4299 50 -0.01 49
IV.MF5.EHZ. 2021-05-31T06:47:29.45 0.3 undecidable manual S 358 0.3903 50 0.47 67
IV.MC2.EHZ. 2021-05-31T06:47:29.04 0.6 undecidable manual S 326 0.3777 50 0.42 45
IV.EL6.EHZ. 2021-05-31T06:47:29.78 0.6 positive manual P 340 0.7806 50 0.06 45
IV.VCEL.EHN. 2021-05-31T06:47:28.04 0.6 undecidable manual S 127 0.3363 50 0.65 42
IV.NRCA.HHZ. 2021-05-31T06:47:28.16 0.6 undecidable manual S 312 0.3552 50 0.21 47
IV.LNSS.HNZ. 2021-05-31T06:47:27.07 0.3 undecidable manual S 271 0.3211 50 0.14 73
IV.MMO1.EHZ. 2021-05-31T06:47:26.22 0.6 undecidable manual S 340 0.3211 50 -0.71 41
IV.CSP1.EHZ. 2021-05-31T06:47:25.20 0.3 negative manual P 338 0.5324 50 -0.26 68
IV.FDMO.HHZ. 2021-05-31T06:47:24.99 0.6 positive manual P 327 0.5234 50 -0.31 45
IV.GUMA.HHZ. 2021-05-31T06:47:24.61 0.1 negative manual P 347 0.4757 50 0.11 94
IV.RM33.EHZ. 2021-05-31T06:47:23.40 0.6 undecidable manual S 245 0.2122 50 -0.31 48
IV.T0110.HHZ. 2021-05-31T06:47:23.60 0.1 undecidable manual P 149 0.4299 50 -0.1 95
IV.MF5.EHZ. 2021-05-31T06:47:23.09 0.6 negative manual P 358 0.3903 50 0.06 49
IV.MC2.EHZ. 2021-05-31T06:47:22.70 1.0 negative manual P 326 0.3777 50 -0.12 24
IV.MTRA.EHZ. 2021-05-31T06:47:22.08 0.3 undecidable manual S 340 0.1691 120 -0.34 72
IV.NRCA.HHZ. 2021-05-31T06:47:22.14 0.3 positive manual P 312 0.3552 50 -0.29 70
IV.GIGS.HHE. 2021-05-31T06:47:21.78 0.6 undecidable manual S 154 0.161 121 -0.36 48
IV.VCEL.EHN. 2021-05-31T06:47:21.90 0.1 undecidable manual P 127 0.3363 50 -0.21 95
IV.MMO1.EHZ. 2021-05-31T06:47:21.61 0.6 undecidable manual P 340 0.3211 50 -0.23 47
IV.LNSS.HNZ. 2021-05-31T06:47:21.74 0.1 undecidable manual P 271 0.3211 50 -0.1 98
IV.T1299.HNZ. 2021-05-31T06:47:21.92 0.6 undecidable manual S 284 0.1475 123 0.22 49
IV.TERO.HHZ. 2021-05-31T06:47:20.53 0.6 undecidable manual S 75 0.0971 135 0.34 49
IV.RM33.EHZ. 2021-05-31T06:47:20.01 0.3 negative manual P 245 0.2122 50 0.02 76
IV.CAMP.HHE. 2021-05-31T06:47:20.04 0.3 undecidable manual S 219 0.0791 141 0.31 73
IV.SMA1.EHZ. 2021-05-31T06:47:20.48 0.6 undecidable manual S 288 0.1088 132 -0.04 51
IV.MTRA.EHZ. 2021-05-31T06:47:19.04 0.1 positive manual P 340 0.1691 120 -0.2 98
IV.T1299.HNZ. 2021-05-31T06:47:18.68 0.1 undecidable manual P 284 0.1475 123 -0.15 100
IV.GIGS.HHE. 2021-05-31T06:47:18.95 0.1 undecidable manual P 154 0.161 121 -0.13 100
IV.SMA1.EHZ. 2021-05-31T06:47:18.43 0.3 negative manual P 288 0.1088 132 0.28 73
IV.TERO.HHZ. 2021-05-31T06:47:17.97 0.6 undecidable manual P 75 0.0971 135 0.01 52
IV.CAMP.HHE. 2021-05-31T06:47:17.99 0.1 undecidable manual P 219 0.0791 141 0.3 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TERO.HHN. ML:1.9 0.0009615 0.16 AML other m 2021-05-31T06:47:20.48
IV.TERO.HHE. ML:1.8 0.000767 0.16 AML other m 2021-05-31T06:47:20.48
IV.SMA1.EHE. ML:1.3 0.0002135 0.4 AML other m 2021-05-31T06:47:21.19
IV.SMA1.EHN. ML:1.2 0.000172 0.14 AML other m 2021-05-31T06:47:21.45
IV.MTRA.EHN. ML:1.5 0.0002195 0.44 AML other m 2021-05-31T06:47:22.15
IV.MTRA.EHE. ML:1.4 0.000187 0.32 AML other m 2021-05-31T06:47:22.54
IV.RM33.EHN. ML:1.4 0.0001595 0.3 AML other m 2021-05-31T06:47:23.78
IV.RM33.EHE. ML:1.4 0.000149 1.42 AML other m 2021-05-31T06:47:23.23
IV.NRCA.HHE. ML:1.8 0.0002375 1.84 AML other m 2021-05-31T06:47:27.07
IV.NRCA.HHN. ML:1.6 0.0001355 0.1 AML other m 2021-05-31T06:47:28.24
IV.GUMA.HHE. ML:1.9 0.000199 1.24 AML other m 2021-05-31T06:47:32.62
IV.FDMO.HHN. ML:2 0.0001915 0.24 AML other m 2021-05-31T06:47:33.38
IV.FDMO.HHE. ML:1.5 7.035E-5 0.54 AML other m 2021-05-31T06:47:34.28
IV.GUMA.HHN. ML:1.8 0.000162 0.64 AML other m 2021-05-31T06:47:35.83
IV.INTR.HNE. ML:2.6 0.0006965 1.5 AML other m 2021-05-31T06:47:36.14
IV.INTR.HNN. ML:2.7 0.0007525 1.58 AML other m 2021-05-31T06:47:56.20
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