Earthquake with magnitude of ML 1.1 on date 30-09-2020 and time 04:46:16 (Italy) in region Montereale (AQ)

A magnitude ML 1.1 earthquake occured in region: Montereale (AQ), on

  • 30-09-2020 02:46:16 (UTC)
  • 30-09-2020 04:46:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.52, 13.25 at 16 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
Montereale AQ 0 2581 2581
Capitignano AQ 4 665 3246
Cagnano Amiterno AQ 8 1369 4615
Barete AQ 9 737 5352
Borbona RI 10 617 5969
Pizzoli AQ 11 4326 10295
Campotosto AQ 11 542 10837
Amatrice RI 12 2657 13494
Posta RI 13 694 14188
Cittareale RI 13 482 14670
Scoppito AQ 17 3727 18397
Micigliano RI 18 127 18524
Antrodoco RI 18 2588 21112
Accumoli RI 19 667 21779
Crognaleto TE 19 1297 23076

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NW of L'Aquila (69753 inhabitants)
40 Km W of Teramo (54892 inhabitants)
50 Km E of Terni (111501 inhabitants)
65 Km SE of Foligno (57155 inhabitants)
72 Km NE of Guidonia Montecelio (88673 inhabitants)
73 Km NE of Tivoli (56533 inhabitants)
74 Km W of Montesilvano (53738 inhabitants)
78 Km W of Chieti (51815 inhabitants)
79 Km W of Pescara (121014 inhabitants)
94 Km NE of Roma (2864731 inhabitants)
95 Km E of Viterbo (67173 inhabitants)
96 Km SE of Perugia (166134 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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 1.1 2020-09-30
02:46:16
42.53 13.25 16 2020-09-30
02:58:01
Sala Sismica INGV-Roma 83374691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-30 02:46:16 ± 0.12
Latitude 42.53 ± 0.01
Longitude 13.25 ± 0.00
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83374691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 554
Semi-minor axis of confidence ellipse (meter) 429
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 172
Circular confidence region, given by single value of horizontal uncertainty (meter) 550
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 153
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.03058
Epicentral distance of station farthest from the epicenter (degree) 0.32376
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 83374691
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-30 02:58:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GAVE.EHZ. 2020-09-30T02:46:28.34 0.3 undecidable manual S 303 0.3103 101 -0.12 70
IV.NRCA.HHZ. 2020-09-30T02:46:28.76 0.3 undecidable manual S 342 0.3238 101 -0.11 70
IV.TERO.HHZ. 2020-09-30T02:46:27.18 0.3 undecidable manual S 69 0.2788 103 -0.38 67
IV.LNSS.HHZ. 2020-09-30T02:46:24.56 0.3 undecidable manual S 297 0.1727 117 -0.02 73
IV.SMA1.EHZ. 2020-09-30T02:46:23.56 0.3 undecidable manual S 31 0.1232 129 0.21 73
IV.GAVE.EHZ. 2020-09-30T02:46:23.44 0.1 undecidable manual P 303 0.3103 101 -0.05 95
IV.NRCA.HHZ. 2020-09-30T02:46:23.67 0.1 undecidable manual P 342 0.3238 101 -0.06 95
IV.CAMP.HHZ. 2020-09-30T02:46:23.14 0.3 undecidable manual S 85 0.1178 130 -0.1 73
IV.TERO.HHZ. 2020-09-30T02:46:22.79 0.1 undecidable manual P 69 0.2788 103 -0.18 94
IV.T1299.HNZ. 2020-09-30T02:46:22.99 0.3 undecidable manual S 13 0.1115 132 -0.11 72
IV.LNSS.HHZ. 2020-09-30T02:46:21.36 0.1 undecidable manual P 297 0.1727 117 0.11 98
IV.RM33.EHZ. 2020-09-30T02:46:21.64 0.3 undecidable manual S 238 0.0306 165 -0.19 73
IV.T1299.HNZ. 2020-09-30T02:46:20.60 0.1 undecidable manual P 13 0.1115 132 0.2 97
IV.CAMP.HHZ. 2020-09-30T02:46:20.63 0.1 undecidable manual P 85 0.1178 130 0.15 98
IV.SMA1.EHZ. 2020-09-30T02:46:20.86 0.1 undecidable manual P 31 0.1232 129 0.32 94
IV.RM33.EHZ. 2020-09-30T02:46:19.79 0.1 undecidable manual P 238 0.0306 165 0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHN. ML:1.2 0.000181 0.42 AML other m 2020-09-30T02:46:21.77
IV.RM33.EHE. ML:1.3 0.0002235 0.26 AML other m 2020-09-30T02:46:21.83
IV.SMA1.EHN. ML:1.4 0.000181 1.84 AML other m 2020-09-30T02:46:23.95
IV.SMA1.EHE. ML:1.7 0.0003745 0.42 AML other m 2020-09-30T02:46:23.96
IV.LNSS.HHN. ML:1.1 7.665E-5 0.18 AML other m 2020-09-30T02:46:24.89
IV.LNSS.HHE. ML:1.4 0.0001505 0.1 AML other m 2020-09-30T02:46:24.94
IV.NRCA.HHE. ML:0.9 3.215E-5 0.44 AML other m 2020-09-30T02:46:29.23
IV.NRCA.HHN. ML:0.8 2.57E-5 0.12 AML other m 2020-09-30T02:46:29.44
IV.RM33.HNE. ML:1.2 0.0001915531 0.1008 AML other m 2020-09-30T02:46:21.77
IV.RM33.HNN. ML:1.1 0.000143494785 0.0608 AML other m 2020-09-30T02:46:21.76
IV.LNSS.HNE. ML:1.3 0.00013058492 0.0992 AML other m 2020-09-30T02:46:24.94
IV.LNSS.HNN. ML:1 6.7076015E-5 0 AML other m 2020-09-30T02:46:24.79
IV.TERO.HHE. ML:0.4 1.0679932E-5 0.08 AML other m 2020-09-30T02:46:29.94
IV.TERO.HHN. ML:0.5 1.2625297E-5 0.1792 AML other m 2020-09-30T02:46:27.76
IV.GAVE.EHE. ML:0.7 1.786916E-5 0.2608 AML other m 2020-09-30T02:46:28.85
IV.GAVE.EHN. ML:0.6 1.419402E-5 0.2 AML other m 2020-09-30T02:46:30.79
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download