Earthquake with magnitude of ML 0.9 on date 16-05-2020 and time 23:29:23 (Italy) in region 5 km NE Cascia (PG)

A magnitude ML 0.9 earthquake occured in region: 5 km NE Cascia (PG), on

  • 16-05-2020 21:29:23 (UTC)
  • 16-05-2020 23:29:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.76, 13.04 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
Cascia PG 5 3217 3217
Norcia PG 6 4957 8174
Poggiodomo PG 10 117 8291
Cerreto di Spoleto PG 12 1075 9366
Preci PG 13 724 10090
Monteleone di Spoleto PG 14 599 10689
Vallo di Nera PG 14 364 11053
Sant'Anatolia di Narco PG 17 564 11617
Sellano PG 17 1079 12696
Scheggino PG 18 461 13157
Castelsantangelo sul Nera MC 18 281 13438
Cittareale RI 19 482 13920
Accumoli RI 19 667 14587
Visso MC 20 1107 15694

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km SE of Foligno (57155 inhabitants)
39 Km NE of Terni (111501 inhabitants)
54 Km NW of L'Aquila (69753 inhabitants)
56 Km W of Teramo (54892 inhabitants)
65 Km SE of Perugia (166134 inhabitants)
85 Km E of Viterbo (67173 inhabitants)
88 Km N of Guidonia Montecelio (88673 inhabitants)
91 Km N of Tivoli (56533 inhabitants)
95 Km W of Montesilvano (53738 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 0.9 2020-05-16
21:29:23
42.76 13.04 11 2020-05-16
21:47:29
Sala Sismica INGV-Roma 79210881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-16 21:29:23 ± 0.09
Latitude 42.76 ± 0.00
Longitude 13.04 ± 0.01
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 79210881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 500
Semi-minor axis of confidence ellipse (meter) 390
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 79
Circular confidence region, given by single value of horizontal uncertainty (meter) 500
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 186
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.35343
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 79210881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-16 21:47:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EL6.EHZ. 2020-05-16T21:29:42.96 3.0 undecidable manual P 0
IV.SNTG.HHZ. 2020-05-16T21:29:42.63 3.0 undecidable manual S 0.19 0
IV.CSP1.EHZ. 2020-05-16T21:29:36.56 0.3 undecidable manual S 20 0.3534 50 0.12 71
IV.FDMO.HHZ. 2020-05-16T21:29:34.10 0.1 undecidable manual S 8 0.2788 50 -0.12 96
IV.MMO1.EHZ. 2020-05-16T21:29:33.47 0.1 undecidable manual S 57 0.2545 50 -0.02 98
IV.CESI.HHZ. 2020-05-16T21:29:33.77 0.1 undecidable manual S 338 0.2635 50 0.01 98
IV.MC2.EHZ. 2020-05-16T21:29:31.71 0.1 undecidable manual S 36 0.188 50 0.18 96
IV.CSP1.EHZ. 2020-05-16T21:29:31.01 0.1 undecidable manual P 20 0.3534 50 0.08 95
IV.FDMO.HHZ. 2020-05-16T21:29:29.51 0.1 undecidable manual P 8 0.2788 50 -0.14 95
IV.CESI.HHZ. 2020-05-16T21:29:29.44 0.1 undecidable manual P 338 0.2635 50 0.05 97
IV.RM33.EHZ. 2020-05-16T21:29:29.73 0.1 undecidable manual P 152 0.2833 50 0.01 98
IV.MMO1.EHZ. 2020-05-16T21:29:29.17 0.1 undecidable manual P 57 0.2545 50 -0.06 97
IV.MC2.EHZ. 2020-05-16T21:29:28.21 0.1 undecidable manual P 36 0.188 50 0.11 98
IV.NRCA.HHZ. 2020-05-16T21:29:28.28 0.1 undecidable manual S 38 0.0926 136 -0.27 96
IV.NRCA.HHZ. 2020-05-16T21:29:26.45 0.1 undecidable manual P 38 0.0926 136 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1 0.0001235 0.72 AML other m 2020-05-16T21:29:28.47
IV.NRCA.HHE. ML:1.3 0.0002555 0.16 AML other m 2020-05-16T21:29:28.47
IV.FDMO.HHN. ML:0.5 1.5205E-5 0.24 AML other m 2020-05-16T21:29:34.58
IV.FDMO.HHE. ML:0.7 2.33E-5 0.82 AML other m 2020-05-16T21:29:34.84
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