Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 17-03-2020 and time 21:21:42 (Italy) in region 5 km SE Castelsantangelo sul Nera (MC)

A magnitude ML 1.6 earthquake occured in region: 5 km SE Castelsantangelo sul Nera (MC), on

  • 17-03-2020 20:21:42 (UTC)
  • 17-03-2020 21:21:42 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8710, 13.1990 at 13 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Castelsantangelo sul Nera MC 5 281 281
Ussita MC 10 444 725
Montemonaco AP 11 604 1329
Visso MC 11 1107 2436
Montegallo AP 11 523 2959
Norcia PG 12 4957 7916
Preci PG 13 724 8640
Arquata del Tronto AP 14 1178 9818
Bolognola MC 14 142 9960
Montefortino FM 14 1178 11138
Amandola FM 18 3629 14767
Acquacanina MC 18 121 14888
Fiastra MC 19 559 15447
Accumoli RI 20 667 16114

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Foligno (57155 inhabitants)
48 Km NW of Teramo (54892 inhabitants)
57 Km NE of Terni (111501 inhabitants)
60 Km N of L'Aquila (69753 inhabitants)
71 Km E of Perugia (166134 inhabitants)
87 Km SW of Ancona (100861 inhabitants)
87 Km W of Montesilvano (53738 inhabitants)
95 Km W of Pescara (121014 inhabitants)
98 Km NW of Chieti (51815 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.6 2020-03-17
20:21:42		 42.8713 13.1993 13 2020-07-18
21:08:37		 Bollettino Sismico Italiano INGV 79411591
Reviewed
Rev100 		ML 1.6 2020-03-17
20:21:42		 42.8722 13.196 13 2020-03-17
20:31:20		 Sala Sismica INGV-Roma 77332591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-17 20:21:42 ± 0.05
Latitude 42.8713 ± 0.0027
Longitude 13.1993 ± 0.0049
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 79411591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 380
Semi-minor axis of confidence ellipse (meter) 43
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 238
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 48
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.04047
Epicentral distance of station farthest from the epicenter (degree) 0.50002
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 40
Type of magnitude ML
Reference to an origin 79411591
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-05-21 15:04:11

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 30
Type of magnitude ML
Reference to an origin 77332591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-17 20:31:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIGS.HHZ. 2020-03-17T20:21:59.60 0.3 undecidable manual S 147 55.5 93 -0.15 67
IV.MOMA.HHZ. 2020-03-17T20:21:58.90 0.1 undecidable manual S 262 51.7038 93 0.16 91
IV.RM33.EHZ. 2020-03-17T20:21:56.10 0.3 undecidable manual S 178 40.2264 95 0.42 67
IV.TERO.HHZ. 2020-03-17T20:21:56.60 0.1 undecidable manual S 130 43.0236 94 0.19 93
IV.CAMP.HHZ. 2020-03-17T20:21:55.80 0.3 undecidable manual S 155 40.9257 95 -0.08 70
IV.LNSS.HHZ. 2020-03-17T20:21:53.90 0.3 undecidable manual S 204 32.4453 97 0.28 70
IV.GIGS.HHZ. 2020-03-17T20:21:52.37 0.1 undecidable manual P 147 55.5 93 -0.08 91
IV.SMA1.EHZ. 2020-03-17T20:21:52.50 0.1 undecidable manual S 157 28.9488 98 -0.18 93
IV.MOMA.HHZ. 2020-03-17T20:21:52.12 0.1 positive manual P 262 51.7038 93 0.25 89
IV.CESI.HHZ. 2020-03-17T20:21:52.40 0.1 undecidable manual S 302 28.1496 98 -0.08 97
IV.CSP1.EHZ. 2020-03-17T20:21:51.20 0.1 undecidable manual S 1 24.4533 101 -0.3 93
IV.MF5.EHZ. 2020-03-17T20:21:51.90 0.1 undecidable manual S 59 24.753 101 0.31 92
IV.GUMA.HHZ. 2020-03-17T20:21:51.60 0.3 undecidable manual S 27 23.9538 101 0.24 70
IV.OFFI.HHZ. 2020-03-17T20:21:50.66 0.1 undecidable manual P 80 40.1265 95 0.57 84
IV.TERO.HHZ. 2020-03-17T20:21:50.21 0.1 undecidable manual P 130 43.0236 94 -0.31 89
IV.MTRA.EHZ. 2020-03-17T20:21:50.20 0.1 undecidable manual S 128 20.4684 105 -0.27 93
IV.RM33.EHZ. 2020-03-17T20:21:50.22 0.1 undecidable manual P 178 40.2264 95 0.13 94
IV.MNTT.EHZ. 2020-03-17T20:21:50.38 0.1 negative manual P 57 38.5281 95 0.56 85
IV.FDMO.HHZ. 2020-03-17T20:21:50.10 0.1 undecidable manual S 334 20.4684 105 -0.36 93
IV.CAMP.HHZ. 2020-03-17T20:21:50.00 0.1 undecidable manual P 155 40.9257 95 -0.21 91
IV.CESI.HHZ. 2020-03-17T20:21:48.16 0.1 positive manual P 302 28.1496 98 -0.09 96
IV.MMO1.EHZ. 2020-03-17T20:21:48.00 0.1 undecidable manual S 73 10.7781 130 -0.17 98
IV.LNSS.HHZ. 2020-03-17T20:21:48.90 0.1 undecidable manual P 204 32.4453 97 -0.01 96
IV.SMA1.EHZ. 2020-03-17T20:21:48.28 0.1 positive manual P 157 28.9488 98 -0.08 96
IV.CSP1.EHZ. 2020-03-17T20:21:47.41 0.1 positive manual P 1 24.4533 101 -0.28 94
IV.MF5.EHZ. 2020-03-17T20:21:47.75 0.1 negative manual P 59 24.753 101 0.02 98
IV.NRCA.HHZ. 2020-03-17T20:21:47.60 0.3 undecidable manual S 239 8.0808 140 -0.05 75
IV.GUMA.HHZ. 2020-03-17T20:21:47.59 0.1 negative manual P 27 23.9538 101 -0.01 99
IV.MC2.EHZ. 2020-03-17T20:21:47.30 0.1 undecidable manual S 349 4.4955 157 0.14 99
IV.MTRA.EHZ. 2020-03-17T20:21:46.95 0.1 negative manual P 128 20.4684 105 -0.13 96
IV.FDMO.HHZ. 2020-03-17T20:21:46.88 0.1 negative manual P 334 20.4684 105 -0.2 96
IV.MC2.EHZ. 2020-03-17T20:21:45.33 0.1 negative manual P 349 4.4955 157 0.16 99
IV.MMO1.EHZ. 2020-03-17T20:21:45.65 0.1 negative manual P 73 10.7781 130 -0.11 99
IV.NRCA.HHZ. 2020-03-17T20:21:45.55 0.1 positive manual P 239 8.0808 140 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:0.0 0.0009072594499999999 0.064 AML other m 2020-03-17T20:21:47.94
IV.NRCA.HHN. ML:0.0 0.0009942357 0.064 AML other m 2020-03-17T20:21:47.97
IV.NRCA.HHE. ML:0.0 0.0012297845 0.1792 AML other m 2020-03-17T20:21:47.87
IV.NRCA.HNE. ML:0.0 0.001144836 0.1792 AML other m 2020-03-17T20:21:47.87
IV.FDMO.HHN. ML:0.0 0.000134822545 0.2432 AML other m 2020-03-17T20:21:50.46
IV.MTRA.EHN. ML:0.0 0.00017033569999999997 0.0896 AML other m 2020-03-17T20:21:50.86
IV.MTRA.EHE. ML:0.0 0.0001949882 0.1408 AML other m 2020-03-17T20:21:50.54
IV.FDMO.HHE. ML:0.0 0.000067104195 0.1792 AML other m 2020-03-17T20:21:51.01
IV.GUMA.HHN. ML:0.0 0.00061882665 0.2944 AML other m 2020-03-17T20:21:52.65
IV.GUMA.HHE. ML:0.0 0.0009461485 0.3712 AML other m 2020-03-17T20:21:52.00
IV.MF5.EHN. ML:0.0 0.00015244566500000002 0.3328 AML other m 2020-03-17T20:21:53.02
IV.MF5.EHE. ML:0.0 0.00016190263500000002 0.2304 AML other m 2020-03-17T20:21:52.58
IV.CESI.HHE. ML:0.0 0.00011854039999999999 0.1792 AML other m 2020-03-17T20:21:52.72
IV.CESI.HHN. ML:0.0 0.00014285855 0.1152 AML other m 2020-03-17T20:21:52.90
IV.SMA1.EHE. ML:0.0 0.00011830583999999999 0.2432 AML other m 2020-03-17T20:21:52.95
IV.SMA1.EHN. ML:0.0 0.00011392430000000001 0.1152 AML other m 2020-03-17T20:21:53.64
IV.LNSS.HHN. ML:0.0 0.00013282575 0.2688 AML other m 2020-03-17T20:21:54.91
IV.LNSS.HHE. ML:0.0 0.0001694539 0.1152 AML other m 2020-03-17T20:21:55.26
IV.CAMP.HHE. ML:0.0 0.00017973705 0.2176 AML other m 2020-03-17T20:21:56.23
IV.CAMP.HHN. ML:0.0 0.000069290605 0.2432 AML other m 2020-03-17T20:21:56.99
IV.RM33.EHE. ML:0.0 0.000058043145 0.1536 AML other m 2020-03-17T20:21:56.38
IV.TERO.HHE. ML:0.0 0.00007313017999999998 0.128 AML other m 2020-03-17T20:21:57.84
IV.MNTT.EHE. ML:0.0 0.0002441025 0.2304 AML other m 2020-03-17T20:21:58.61
IV.TERO.HHN. ML:0.0 0.00009335817 0.1408 AML other m 2020-03-17T20:21:57.87
IV.RM33.EHN. ML:0.0 0.00005735167 0.1664 AML other m 2020-03-17T20:21:57.93
IV.MNTT.EHN. ML:0.0 0.00024638345 0.4608 AML other m 2020-03-17T20:21:58.85
IV.OFFI.HHN. ML:0.0 0.00013124999999999996 0.3456 AML other m 2020-03-17T20:21:59.87
IV.MOMA.HHE. ML:0.0 0.00007305216 0.192 AML other m 2020-03-17T20:22:01.20
IV.MOMA.HHN. ML:0.0 0.00006109352999999999 0.1792 AML other m 2020-03-17T20:22:01.06
IV.OFFI.HHE. ML:0.0 0.00011907875 0.3328 AML other m 2020-03-17T20:22:04.01
IV.MTRA.HNN. ML:1.6 0.00024854005 0.5504 AML other m 2020-03-17T20:21:50.44
IV.MTRA.HNE. ML:1.4 0.0001852876 0.1152 AML other m 2020-03-17T20:21:51.74
IV.CSP1.EHE. ML:1.2 0.00008051519500000002 0.2304 AML other m 2020-03-17T20:21:52.38
IV.CSP1.EHN. ML:1.2 0.0000997807 0.3712 AML other m 2020-03-17T20:21:51.65
IV.GUMA.HNE. ML:2.1 0.0007390475000000001 0.384 AML other m 2020-03-17T20:21:52.00
IV.GUMA.HNN. ML:2.1 0.0006983452 1.408 AML other m 2020-03-17T20:21:50.82
IV.RM33.HNE. ML:1.8 0.00019411915000000003 0.9344 AML other m 2020-03-17T20:22:02.02
IV.RM33.HNN. ML:1.6 0.0001518894 1.664 AML other m 2020-03-17T20:21:57.28
IV.MOMA.HNE. ML:1.7 0.00011969299 1.6512 AML other m 2020-03-17T20:22:01.29
IV.MOMA.HNN. ML:1.7 0.00013078424 0.6016 AML other m 2020-03-17T20:22:14.54
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