Earthquake with magnitude of ML 1.1 on date 31-05-2021 and time 05:58:22 (UTC) in region 3 km SW Cortino (TE)

A magnitude ML 1.1 earthquake occured in region: 3 km SW Cortino (TE), on

  • 31-05-2021 05:58:22 (UTC)
  • 31-05-2021 07:58:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6, 13.48 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
Cortino TE 3 656 656
Crognaleto TE 6 1297 1953
Fano Adriano TE 7 296 2249
Campotosto AQ 10 542 2791
Rocca Santa Maria TE 10 537 3328
Pietracamela TE 11 271 3599
Montorio al Vomano TE 13 8218 11817
Tossicia TE 15 1406 13223
Valle Castellana TE 15 977 14200
Torricella Sicura TE 16 2641 16841
Amatrice RI 16 2657 19498
Capitignano AQ 17 665 20163
Colledara TE 18 2179 22342
Isola del Gran Sasso d'Italia TE 19 4773 27115
Teramo TE 20 54892 82007
Acquasanta Terme AP 20 2916 84923

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 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 2021-05-31
05:58:22
42.6005 13.4798 11 2021-05-31
06:11:34
Sala Sismica INGV-Roma 90652891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-31 05:58:22 ± 0.09
Latitude 42.6005 ± 0.0054
Longitude 13.4798 ± 0.0086
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 90652891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 786
Semi-minor axis of confidence ellipse (meter) 410
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 232
Circular confidence region, given by single value of horizontal uncertainty (meter) 790
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.08274
Epicentral distance of station farthest from the epicenter (degree) 0.37682
Number of stations at which the event was observed 10
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 10
Type of magnitude ML
Reference to an origin 90652891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-31 06:11:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VCEL.EHE. 2021-05-31T05:58:35.27 0.6 undecidable manual S 128 0.3363 50 0.5 45
IV.NRCA.HHZ. 2021-05-31T05:58:35.51 0.6 undecidable manual S 311 0.3552 50 0.17 49
IV.MC2.EHE. 2021-05-31T05:58:35.48 0.6 undecidable manual S 326 0.3768 50 -0.49 45
IV.MMO1.EHZ. 2021-05-31T05:58:34.30 0.6 undecidable manual S 339 0.3193 50 0.04 50
IV.RM33.EHZ. 2021-05-31T05:58:31.14 0.6 undecidable manual S 245 0.2158 50 -0.05 51
IV.MC2.EHE. 2021-05-31T05:58:30.77 0.1 undecidable manual P 326 0.3768 50 0.61 86
IV.GIGS.HHN. 2021-05-31T05:58:29.27 0.6 undecidable manual S 155 0.1628 120 -0.17 50
IV.MMO1.EHZ. 2021-05-31T05:58:29.40 0.1 undecidable manual P 339 0.3193 50 0.23 97
IV.VCEL.EHE. 2021-05-31T05:58:29.04 0.1 undecidable manual P 128 0.3363 50 -0.42 93
IV.MTRA.HNE. 2021-05-31T05:58:29.23 0.6 undecidable manual S 339 0.1673 119 -0.38 48
IV.NRCA.HHZ. 2021-05-31T05:58:29.46 0.3 positive manual P 311 0.3552 50 -0.33 71
IV.RM33.EHZ. 2021-05-31T05:58:27.25 0.6 positive manual P 245 0.2158 50 -0.15 50
IV.TERO.HHZ. 2021-05-31T05:58:27.75 0.6 undecidable manual S 76 0.0935 135 0.42 49
IV.SMA1.EHZ. 2021-05-31T05:58:27.69 0.6 undecidable manual S 286 0.1106 130 -0.11 52
IV.CAMP.HHZ. 2021-05-31T05:58:27.23 0.6 undecidable manual S 219 0.0827 139 0.19 51
IV.GIGS.HHN. 2021-05-31T05:58:26.04 0.1 undecidable manual P 155 0.1628 120 -0.34 97
IV.MTRA.HNE. 2021-05-31T05:58:26.17 0.1 undecidable manual P 339 0.1673 119 -0.31 98
IV.TERO.HHZ. 2021-05-31T05:58:25.24 1.0 undecidable manual P 76 0.0935 135 0.07 26
IV.SMA1.EHZ. 2021-05-31T05:58:25.74 0.3 positive manual P 286 0.1106 130 0.3 74
IV.CAMP.HHZ. 2021-05-31T05:58:25.29 0.1 undecidable manual P 219 0.0827 139 0.29 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1.2 3.145E-5 0.42 AML other m 2021-05-31T05:58:32.32
IV.NRCA.HHE. ML:1.3 7.185E-5 0.16 AML other m 2021-05-31T05:58:35.38
IV.NRCA.HHN. ML:1.2 6.245E-5 0.7 AML other m 2021-05-31T05:58:35.54
IV.FDMO.HHN. ML:1.5 6.355E-5 0.24 AML other m 2021-05-31T05:58:40.69
IV.TERO.HHE. ML:1.3 0.00025966925 0.1792 AML other m 2021-05-31T05:58:28.40
IV.TERO.HHN. ML:1.5 0.000386785935 0.08 AML other m 2021-05-31T05:58:27.82
IV.SMA1.EHE. ML:0.7 5.8954135E-5 0.0768 AML other m 2021-05-31T05:58:28.65
IV.SMA1.EHN. ML:0.8 6.8298125E-5 0.1792 AML other m 2021-05-31T05:58:28.43
IV.RM33.EHE. ML:0.9 4.3735835E-5 0.1792 AML other m 2021-05-31T05:58:31.61
IV.RM33.EHN. ML:1 6.101826E-5 0.2976 AML other m 2021-05-31T05:58:31.22
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