Earthquake with magnitude of ML 1.6 on date 20-03-2020 and time 23:36:22 (Italy) in region 2 km E Montereale (AQ)

A magnitude ML 1.6 earthquake occured in region: 2 km E Montereale (AQ), on

  • 20-03-2020 22:36:22 (UTC)
  • 20-03-2020 23:36:22 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.52, 13.27 at 12 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 2 2581 2581
Capitignano AQ 3 665 3246
Barete AQ 7 737 3983
Cagnano Amiterno AQ 7 1369 5352
Pizzoli AQ 9 4326 9678
Campotosto AQ 9 542 10220
Borbona RI 11 617 10837
Amatrice RI 13 2657 13494
Posta RI 14 694 14188
Cittareale RI 15 482 14670
Scoppito AQ 16 3727 18397
Crognaleto TE 18 1297 19694
Antrodoco RI 19 2588 22282
Micigliano RI 19 127 22409
Accumoli RI 20 667 23076

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NW of L'Aquila (69753 inhabitants)
39 Km W of Teramo (54892 inhabitants)
51 Km E of Terni (111501 inhabitants)
67 Km SE of Foligno (57155 inhabitants)
72 Km W of Montesilvano (53738 inhabitants)
73 Km NE of Tivoli (56533 inhabitants)
73 Km NE of Guidonia Montecelio (88673 inhabitants)
76 Km W of Chieti (51815 inhabitants)
78 Km W of Pescara (121014 inhabitants)
95 Km NE of Roma (2864731 inhabitants)
96 Km E of Viterbo (67173 inhabitants)
98 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
Rev 100 ML 1.6 2020-03-20
22:36:22
42.52 13.27 12 2020-03-20
22:46:13
Sala Sismica INGV-Roma 77418391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-20 22:36:22 ± 0.08
Latitude 42.52 ± 0.00
Longitude 13.27 ± 0.00
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77418391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 570
Semi-minor axis of confidence ellipse (meter) 28
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 338
Circular confidence region, given by single value of horizontal uncertainty (meter) 570
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 56
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.54859
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 77418391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-20 22:46:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.APEC.HHZ. 2020-03-20T22:36:47.39 3.0 undecidable manual P 3.18 0
IV.MMO1.EHZ. 2020-03-20T22:36:36.51 0.3 undecidable manual S 6 0.3849 92 0.11 70
IV.ARRO.EHZ. 2020-03-20T22:36:35.89 0.3 undecidable manual S 280 0.3777 92 -0.28 69
IV.NRCA.HHZ. 2020-03-20T22:36:34.63 0.3 undecidable manual S 340 0.3381 93 -0.36 68
IV.OFFI.HHZ. 2020-03-20T22:36:33.67 0.3 undecidable manual P 36 0.5171 91 0.88 54
IV.FDMO.HHZ. 2020-03-20T22:36:33.05 0.3 undecidable manual P 345 0.5378 91 -0.09 69
IV.GUMA.HHZ. 2020-03-20T22:36:33.78 0.3 undecidable manual P 5 0.5486 91 0.46 63
IV.VCEL.EHZ. 2020-03-20T22:36:32.03 0.3 undecidable manual P 106 0.4371 92 0.62 62
IV.MTRA.EHZ. 2020-03-20T22:36:32.27 0.3 undecidable manual S 21 0.2572 94 -0.34 69
IV.TERO.HHZ. 2020-03-20T22:36:32.22 0.6 undecidable manual S 66 0.2671 94 -0.67 41
IV.FIAM.HHZ. 2020-03-20T22:36:32.90 0.6 undecidable manual S 205 0.2725 94 -0.16 47
IV.MF5.EHZ. 2020-03-20T22:36:32.67 0.3 undecidable manual P 16 0.491 92 0.33 66
IV.GIGS.HHZ. 2020-03-20T22:36:31.40 0.3 undecidable manual S 106 0.2302 95 -0.42 67
IV.ARRO.EHZ. 2020-03-20T22:36:30.36 0.3 undecidable manual P 280 0.3777 92 -0.04 72
IV.LNSS.HHZ. 2020-03-20T22:36:30.48 0.3 undecidable manual S 297 0.1916 98 -0.18 73
IV.MMO1.EHZ. 2020-03-20T22:36:30.53 0.1 undecidable manual P 6 0.3849 92 0 96
IV.NRCA.HHZ. 2020-03-20T22:36:29.61 0.1 undecidable manual P 340 0.3381 93 -0.11 96
IV.FIAM.HHZ. 2020-03-20T22:36:28.61 0.3 undecidable manual P 205 0.2725 94 0 74
IV.T1299.EHE. 2020-03-20T22:36:28.42 0.6 undecidable manual S 4 0.1187 115 -0.16 49
IV.SMA1.EHZ. 2020-03-20T22:36:28.81 0.3 undecidable manual S 22 0.1241 113 0.09 75
IV.MTRA.EHZ. 2020-03-20T22:36:28.17 0.3 undecidable manual P 21 0.2572 94 -0.17 72
IV.TERO.HHZ. 2020-03-20T22:36:28.31 0.3 undecidable manual P 66 0.2671 94 -0.19 71
IV.LNSS.HHZ. 2020-03-20T22:36:27.36 0.1 undecidable manual P 297 0.1916 98 0.14 96
IV.CAMP.HHZ. 2020-03-20T22:36:27.89 0.3 undecidable manual S 79 0.1034 121 -0.28 71
IV.GIGS.HHZ. 2020-03-20T22:36:27.59 0.1 undecidable manual P 106 0.2302 95 -0.29 93
MN.AQU.HHN. 2020-03-20T22:36:27.69 0.3 undecidable manual P 149 0.1898 98 0.5 68
IV.RM33.EHZ. 2020-03-20T22:36:26.59 0.3 undecidable manual S 261 0.0423 153 -0.36 71
IV.T1299.EHE. 2020-03-20T22:36:26.16 0.3 undecidable manual P 4 0.1187 115 0.14 74
IV.SMA1.EHZ. 2020-03-20T22:36:26.29 0.1 undecidable manual P 22 0.1241 113 0.19 98
IV.RM33.EHZ. 2020-03-20T22:36:25.26 0.1 undecidable manual P 261 0.0423 153 0.18 100
IV.CAMP.HHZ. 2020-03-20T22:36:25.91 0.1 undecidable manual P 79 0.1034 121 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.HNN. ML:1.6 0.000505 1.68 AML other m 2020-03-20T22:36:26.91
IV.RM33.EHN. ML:1.6 0.000516 1.7 AML other m 2020-03-20T22:36:26.92
IV.RM33.HNE. ML:1.6 0.000614 1.68 AML other m 2020-03-20T22:36:26.94
IV.RM33.EHE. ML:1.6 0.0005985 1.68 AML other m 2020-03-20T22:36:26.11
IV.CAMP.HHN. ML:1.2 0.000184 0.32 AML other m 2020-03-20T22:36:28.33
IV.SMA1.EHN. ML:1.8 0.0005925 0.34 AML other m 2020-03-20T22:36:29.25
IV.SMA1.EHE. ML:2 0.000947 0.24 AML other m 2020-03-20T22:36:29.42
IV.CAMP.HHE. ML:0.9 8.98E-5 0.56 AML other m 2020-03-20T22:36:29.46
IV.LNSS.HHE. ML:1.8 0.000377 0.14 AML other m 2020-03-20T22:36:31.07
IV.LNSS.HHN. ML:1.7 0.0003545 0.18 AML other m 2020-03-20T22:36:31.10
IV.GIGS.HHN. ML:0.4 1.475E-5 0.28 AML other m 2020-03-20T22:36:31.44
IV.MTRA.EHE. ML:1.7 0.0002495 0.08 AML other m 2020-03-20T22:36:32.48
IV.TERO.HHN. ML:1.3 9.635E-5 0.2 AML other m 2020-03-20T22:36:32.51
IV.MTRA.EHN. ML:1.6 0.000218 0.42 AML other m 2020-03-20T22:36:32.52
IV.TERO.HHE. ML:1.1 6.69E-5 1.44 AML other m 2020-03-20T22:36:33.03
IV.GIGS.HHE. ML:0.3 1.163E-5 0.52 AML other m 2020-03-20T22:36:33.50
IV.FIAM.HHN. ML:0.8 3.1E-5 1.16 AML other m 2020-03-20T22:36:33.35
IV.FIAM.HHE. ML:0.8 3.05E-5 0.74 AML other m 2020-03-20T22:36:33.75
IV.NRCA.HHE. ML:1.7 0.000168 0.1 AML other m 2020-03-20T22:36:35.80
IV.NRCA.HHN. ML:1.5 0.000106 0.08 AML other m 2020-03-20T22:36:36.05
IV.ARRO.EHN. ML:1 3.175E-5 0.22 AML other m 2020-03-20T22:36:37.63
IV.ARRO.EHE. ML:0.8 1.99E-5 0.46 AML other m 2020-03-20T22:36:38.58
IV.GUMA.HHN. ML:1.7 9.43E-5 0.6 AML other m 2020-03-20T22:36:43.00
IV.GUMA.HHE. ML:1.6 9.08E-5 1.74 AML other m 2020-03-20T22:36:43.97
IV.FDMO.HHN. ML:0.9 1.64E-5 0.6 AML other m 2020-03-20T22:36:43.37
IV.FDMO.HHE. ML:1 1.92E-5 0.22 AML other m 2020-03-20T22:36:43.51
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