A magnitude ML 1.7 earthquake occured in region: 7 km NW Arquata del Tronto (AP), on
and geographic coordinates (lat, lon) 42.8100, 13.2310 at 11 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.
Municipality | Region | Distance (km) | Inhabitants | Cumulative Inhabitants |
---|---|---|---|---|
Arquata del Tronto | AP | 7 | 1178 | 1178 |
Montegallo | AP | 9 | 523 | 1701 |
Norcia | PG | 11 | 4957 | 6658 |
Castelsantangelo sul Nera | MC | 11 | 281 | 6939 |
Montemonaco | AP | 13 | 604 | 7543 |
Accumoli | RI | 13 | 667 | 8210 |
Acquasanta Terme | AP | 15 | 2916 | 11126 |
Ussita | MC | 17 | 444 | 11570 |
Preci | PG | 17 | 724 | 12294 |
Montefortino | FM | 17 | 1178 | 13472 |
Visso | MC | 18 | 1107 | 14579 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.7 | 2021-04-20 23:08:48 |
42.8098 | 13.2307 | 11 | 2021-07-12 16:55:15 |
Bollettino Sismico Italiano INGV | 91379571 |
Reviewed Rev100 |
ML 1.7 | 2021-04-20 23:08:48 |
42.8105 | 13.2308 | 11 | 2021-04-20 23:14:53 |
Sala Sismica INGV-Roma | 89312471 |
Field | Value |
---|---|
Time (UTC) | 2021-04-20 23:08:48 ± 0.04 |
Latitude | 42.8098 ± 0.0018 |
Longitude | 13.2307 ± 0.0037 |
Depth (km) | 11 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 91379571 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 256 |
Semi-minor axis of confidence ellipse (meter) | 174 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 63 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 260.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 45 |
Number of associated phases, regardless of their use for origin computation | 55 |
Number of defining phases | 55 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.2 |
Epicentral distance of station closest to the epicenter (degree) | 0.08813 |
Epicentral distance of station farthest from the epicenter (degree) | 0.71946 |
Number of stations at which the event was observed | 34 |
Number of stations from which data was used for origin computation | 34 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | 0.3 |
Num. used stations | 58 |
Type of magnitude | ML |
Reference to an origin | 89312471 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-20 23:14:53 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | 0.3 |
Num. used stations | 58 |
Type of magnitude | ML |
Reference to an origin | 91379571 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-06-22 09:56:57 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.FOSV.EHZ. | 2021-04-20T23:09:09.21 | 0.3 | undecidable | manual | S | 325 | 65.8896 | 50 | 0.51 | 61 |
IV.FIAM.HHZ. | 2021-04-20T23:09:07.40 | 0.3 | undecidable | manual | S | 189 | 60.7947 | 50 | 0.05 | 68 |
IV.CESX.HHZ. | 2021-04-20T23:09:06.77 | 0.3 | undecidable | manual | S | 247 | 56.9985 | 50 | 0.43 | 63 |
IV.MOMA.HHZ. | 2021-04-20T23:09:05.98 | 0.6 | undecidable | manual | S | 270 | 53.8017 | 50 | 0.51 | 42 |
IV.MURB.HHZ. | 2021-04-20T23:09:02.01 | 0.6 | undecidable | manual | P | 312 | 76.1682 | 50 | 0.21 | 43 |
IV.T0110.HHZ. | 2021-04-20T23:09:02.07 | 0.6 | undecidable | manual | P | 145 | 78.366 | 50 | -0.06 | 44 |
IV.ARVD.HHZ. | 2021-04-20T23:09:02.17 | 1.0 | undecidable | manual | P | 343 | 79.8645 | 50 | -0.19 | 21 |
IV.VCEL.EHZ. | 2021-04-20T23:09:00.48 | 0.6 | undecidable | manual | P | 133 | 67.8765 | 50 | -0.04 | 45 |
IV.CESI.HHZ. | 2021-04-20T23:09:00.23 | 0.6 | undecidable | manual | S | 309 | 34.2435 | 50 | -0.02 | 48 |
IV.RM33.EHZ. | 2021-04-20T23:09:00.37 | 0.6 | undecidable | manual | S | 182 | 33.4443 | 50 | 0.34 | 45 |
IV.TERO.HHZ. | 2021-04-20T23:09:00.68 | 0.3 | undecidable | manual | S | 124 | 36.8298 | 50 | -0.26 | 68 |
IV.FAGN.HHZ. | 2021-04-20T23:09:00.48 | 0.6 | undecidable | manual | P | 154 | 66.8775 | 50 | 0.11 | 44 |
IV.CAMP.HHZ. | 2021-04-20T23:08:59.97 | 0.6 | undecidable | manual | S | 154 | 33.744 | 50 | -0.14 | 47 |
IV.CSP1.EHZ. | 2021-04-20T23:08:59.24 | 0.6 | undecidable | manual | S | 356 | 31.3464 | 50 | -0.24 | 46 |
IV.FOSV.EHZ. | 2021-04-20T23:08:59.92 | 0.6 | undecidable | manual | P | 325 | 65.8896 | 50 | -0.29 | 43 |
IV.FIAM.HHZ. | 2021-04-20T23:08:59.01 | 0.6 | undecidable | manual | P | 189 | 60.7947 | 50 | -0.43 | 42 |
IV.GUMA.HHZ. | 2021-04-20T23:08:59.38 | 0.6 | undecidable | manual | S | 17 | 29.3484 | 50 | 0.45 | 44 |
IV.ATCC.EHZ. | 2021-04-20T23:08:59.92 | 0.3 | undecidable | manual | P | 311 | 63.492 | 50 | 0.08 | 67 |
IV.MF5.EHZ. | 2021-04-20T23:08:58.79 | 0.3 | undecidable | manual | S | 43 | 27.1506 | 50 | 0.43 | 67 |
IV.FDMO.HHZ. | 2021-04-20T23:08:58.16 | 0.3 | undecidable | manual | S | 335 | 27.75 | 50 | -0.35 | 68 |
IV.CESX.HHZ. | 2021-04-20T23:08:58.82 | 0.3 | undecidable | manual | P | 247 | 56.9985 | 50 | -0.03 | 69 |
IV.MOMA.HHZ. | 2021-04-20T23:08:58.42 | 0.3 | undecidable | manual | P | 270 | 53.8017 | 50 | 0.08 | 69 |
IV.LNSS.HHZ. | 2021-04-20T23:08:58.74 | 0.3 | undecidable | manual | S | 214 | 27.75 | 50 | 0.23 | 70 |
IT.MTCL.HGZ. | 2021-04-20T23:08:58.09 | 0.6 | undecidable | manual | S | 317 | 27.75 | 50 | -0.43 | 45 |
IV.EL6.EHZ. | 2021-04-20T23:08:58.79 | 0.3 | undecidable | manual | P | 350 | 58.5969 | 50 | -0.29 | 65 |
IV.ASSB.HHZ. | 2021-04-20T23:08:58.00 | 0.6 | undecidable | manual | P | 299 | 53.1024 | 50 | -0.25 | 44 |
IV.ARRO.EHZ. | 2021-04-20T23:08:57.04 | 0.3 | undecidable | manual | P | 236 | 45.7209 | 50 | -0.07 | 70 |
IV.OFFI.HHZ. | 2021-04-20T23:08:56.72 | 0.1 | undecidable | manual | P | 69 | 39.5271 | 50 | 0.57 | 84 |
IV.T1299.HNN. | 2021-04-20T23:08:56.64 | 0.6 | undecidable | manual | S | 168 | 19.9689 | 50 | 0.2 | 47 |
IV.FEMA.HNE. | 2021-04-20T23:08:56.92 | 0.6 | undecidable | manual | S | 319 | 22.3554 | 50 | -0.17 | 48 |
IV.MNTT.EHZ. | 2021-04-20T23:08:56.76 | 0.3 | undecidable | manual | P | 47 | 40.7259 | 50 | 0.42 | 65 |
IV.SMA1.EHZ. | 2021-04-20T23:08:56.75 | 0.6 | undecidable | manual | S | 157 | 21.6672 | 50 | -0.14 | 48 |
IV.RM33.EHZ. | 2021-04-20T23:08:55.07 | 0.1 | positive | manual | P | 182 | 33.4443 | 50 | -0.14 | 94 |
IV.TERO.HHZ. | 2021-04-20T23:08:55.44 | 0.3 | undecidable | manual | P | 124 | 36.8298 | 50 | -0.3 | 68 |
IV.SAP2.EHZ. | 2021-04-20T23:08:55.51 | 0.3 | undecidable | manual | P | 23 | 34.6431 | 50 | 0.11 | 71 |
IV.CAMP.HHZ. | 2021-04-20T23:08:55.07 | 0.1 | undecidable | manual | P | 154 | 33.744 | 50 | -0.18 | 93 |
IV.CESI.HHZ. | 2021-04-20T23:08:55.15 | 0.3 | undecidable | manual | P | 309 | 34.2435 | 50 | -0.18 | 70 |
IV.MC2.EHZ. | 2021-04-20T23:08:54.39 | 0.6 | undecidable | manual | S | 343 | 11.7771 | 133 | 0.21 | 48 |
IV.LNSS.HHZ. | 2021-04-20T23:08:54.28 | 0.1 | positive | manual | P | 214 | 27.75 | 50 | -0.05 | 96 |
IV.MF5.EHZ. | 2021-04-20T23:08:54.32 | 0.1 | undecidable | manual | P | 43 | 27.1506 | 50 | 0.08 | 96 |
IT.MTCL.HGZ. | 2021-04-20T23:08:54.06 | 0.3 | undecidable | manual | P | 317 | 27.75 | 50 | -0.27 | 69 |
IV.GUMA.HHZ. | 2021-04-20T23:08:54.62 | 0.1 | positive | manual | P | 17 | 29.3484 | 50 | 0.04 | 96 |
IV.MMO1.EHZ. | 2021-04-20T23:08:54.16 | 0.6 | undecidable | manual | S | 38 | 12.6762 | 131 | -0.25 | 48 |
IV.GAVE.EHZ. | 2021-04-20T23:08:54.64 | 0.1 | positive | manual | P | 245 | 30.3474 | 50 | -0.1 | 95 |
IV.FDMO.HHZ. | 2021-04-20T23:08:54.00 | 0.1 | undecidable | manual | P | 335 | 27.75 | 50 | -0.33 | 91 |
IV.MTRA.EHZ. | 2021-04-20T23:08:54.84 | 0.6 | undecidable | manual | S | 114 | 14.7741 | 126 | -0.13 | 48 |
IV.CSP1.EHZ. | 2021-04-20T23:08:54.61 | 0.1 | positive | manual | P | 356 | 31.3464 | 50 | -0.28 | 91 |
IV.SMA1.EHZ. | 2021-04-20T23:08:53.31 | 0.1 | negative | manual | P | 157 | 21.6672 | 50 | -0.08 | 97 |
IV.T1299.HNN. | 2021-04-20T23:08:53.26 | 0.1 | undecidable | manual | P | 168 | 19.9689 | 50 | 0.13 | 96 |
IV.NRCA.HNZ. | 2021-04-20T23:08:53.79 | 0.6 | undecidable | manual | S | 286 | 9.7791 | 138 | 0.08 | 49 |
IV.FEMA.HNE. | 2021-04-20T23:08:53.38 | 0.1 | undecidable | manual | P | 319 | 22.3554 | 50 | -0.13 | 96 |
IV.MC2.EHZ. | 2021-04-20T23:08:52.00 | 0.1 | undecidable | manual | P | 343 | 11.7771 | 133 | 0.17 | 97 |
IV.MTRA.EHZ. | 2021-04-20T23:08:52.27 | 0.1 | negative | manual | P | 114 | 14.7741 | 126 | -0.02 | 99 |
IV.NRCA.HNZ. | 2021-04-20T23:08:51.72 | 0.1 | negative | manual | P | 286 | 9.7791 | 138 | 0.16 | 97 |
IV.MMO1.EHZ. | 2021-04-20T23:08:51.96 | 0.1 | undecidable | manual | P | 38 | 12.6762 | 131 | 0 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HNE. | ML:2.5 | 0.0036799999999999997 | 0.16 | AML | other | m | 2021-04-20T23:08:53.97 |
IV.NRCA.HHE. | ML:2.5 | 0.00374 | 0.16 | AML | other | m | 2021-04-20T23:08:53.97 |
IV.NRCA.HNN. | ML:2.3 | 0.002555 | 1.06 | AML | other | m | 2021-04-20T23:08:53.44 |
IV.NRCA.HHN. | ML:2.3 | 0.00266 | 0.16 | AML | other | m | 2021-04-20T23:08:53.98 |
IV.MTRA.EHE. | ML:1.8 | 0.0006319999999999999 | 0.24 | AML | other | m | 2021-04-20T23:08:55.12 |
IV.MTRA.HNE. | ML:1.8 | 0.000602 | 0.9 | AML | other | m | 2021-04-20T23:08:55.12 |
IV.MTRA.EHN. | ML:1.9 | 0.000716 | 0.34 | AML | other | m | 2021-04-20T23:08:55.45 |
IV.MTRA.HNN. | ML:1.9 | 0.000781 | 0.34 | AML | other | m | 2021-04-20T23:08:55.45 |
IV.SMA1.EHN. | ML:1.8 | 0.0004345 | 1.8 | AML | other | m | 2021-04-20T23:08:56.92 |
IV.SMA1.EHE. | ML:1.8 | 0.00040100000000000004 | 0.54 | AML | other | m | 2021-04-20T23:08:57.06 |
IV.LNSS.HHN. | ML:1.8 | 0.000288 | 0.78 | AML | other | m | 2021-04-20T23:08:59.76 |
IV.LNSS.HHE. | ML:2.0 | 0.000494 | 0.12 | AML | other | m | 2021-04-20T23:08:59.50 |
IV.GUMA.HHE. | ML:2.0 | 0.0005529999999999999 | 0.26 | AML | other | m | 2021-04-20T23:08:59.62 |
IV.CSP1.EHE. | ML:1.9 | 0.00034050000000000004 | 0.76 | AML | other | m | 2021-04-20T23:08:59.32 |
IV.GUMA.HHN. | ML:1.9 | 0.0004115 | 1.54 | AML | other | m | 2021-04-20T23:08:59.03 |
IV.CSP1.EHN. | ML:2.0 | 0.0004974999999999999 | 0.74 | AML | other | m | 2021-04-20T23:09:00.39 |
IV.CAMP.HHE. | ML:1.7 | 0.00021150000000000002 | 0.64 | AML | other | m | 2021-04-20T23:09:00.47 |
IV.GAVE.EHE. | ML:1.8 | 0.0002925 | 0.16 | AML | other | m | 2021-04-20T23:09:00.44 |
IV.CAMP.HHN. | ML:1.6 | 0.000177 | 0.48 | AML | other | m | 2021-04-20T23:09:00.27 |
IV.CESI.HHN. | ML:1.5 | 0.000136 | 0.32 | AML | other | m | 2021-04-20T23:09:00.44 |
IV.GAVE.EHN. | ML:1.8 | 0.00029800000000000003 | 1.34 | AML | other | m | 2021-04-20T23:09:00.20 |
IV.CESI.HHE. | ML:1.5 | 0.0001205 | 0.2 | AML | other | m | 2021-04-20T23:09:00.94 |
IV.RM33.EHE. | ML:1.8 | 0.000279 | 0.4 | AML | other | m | 2021-04-20T23:09:00.74 |
IV.RM33.EHN. | ML:1.9 | 0.00033899999999999995 | 1.02 | AML | other | m | 2021-04-20T23:09:00.47 |
IV.TERO.HHE. | ML:1.7 | 0.00017449999999999999 | 0.1 | AML | other | m | 2021-04-20T23:09:01.45 |
IV.TERO.HHN. | ML:1.6 | 0.00014800000000000002 | 0.16 | AML | other | m | 2021-04-20T23:09:01.91 |
IV.SAP2.EHE. | ML:1.4 | 0.00011080000000000001 | 0.56 | AML | other | m | 2021-04-20T23:09:02.64 |
IV.MF5.EHN. | ML:1.4 | 0.0001471 | 0.5 | AML | other | m | 2021-04-20T23:09:03.80 |
IV.MF5.EHE. | ML:1.4 | 0.000132 | 0.46 | AML | other | m | 2021-04-20T23:09:03.86 |
IV.OFFI.HHN. | ML:2.0 | 0.0003515 | 0.82 | AML | other | m | 2021-04-20T23:09:04.69 |
IV.MNTT.EHN. | ML:2.0 | 0.0003525 | 1.88 | AML | other | m | 2021-04-20T23:09:04.03 |
IV.MNTT.EHE. | ML:2.4 | 0.000786 | 1.48 | AML | other | m | 2021-04-20T23:09:05.93 |
IV.ARRO.EHN. | ML:1.4 | 0.0000734 | 0.68 | AML | other | m | 2021-04-20T23:09:05.88 |
IV.SAP2.EHN. | ML:2.1 | 0.0005375 | 1.6 | AML | other | m | 2021-04-20T23:09:06.06 |
IV.ARRO.EHE. | ML:1.2 | 0.00005035 | 0.14 | AML | other | m | 2021-04-20T23:09:06.17 |
IV.OFFI.HHE. | ML:1.8 | 0.0002075 | 0.44 | AML | other | m | 2021-04-20T23:09:06.26 |
IV.MOMA.HHE. | ML:1.6 | 0.0000954 | 1.78 | AML | other | m | 2021-04-20T23:09:06.92 |
IV.MOMA.HHN. | ML:1.5 | 0.00008205 | 1.72 | AML | other | m | 2021-04-20T23:09:07.07 |
IV.ASSB.HHN. | ML:1.4 | 0.0000547 | 0.18 | AML | other | m | 2021-04-20T23:09:07.13 |
IV.ASSB.HHE. | ML:1.3 | 0.0000514 | 1.8 | AML | other | m | 2021-04-20T23:09:08.91 |
IV.CESX.HHN. | ML:1.4 | 0.00006195 | 0.26 | AML | other | m | 2021-04-20T23:09:08.30 |
IV.FIAM.HHE. | ML:1.1 | 0.0000233 | 0.38 | AML | other | m | 2021-04-20T23:09:08.01 |
IV.FIAM.HHN. | ML:1.1 | 0.00002385 | 0.84 | AML | other | m | 2021-04-20T23:09:08.13 |
IV.CESX.HHE. | ML:1.4 | 0.00005075 | 0.42 | AML | other | m | 2021-04-20T23:09:09.41 |
IV.FOSV.EHE. | ML:1.4 | 0.0000434 | 0.54 | AML | other | m | 2021-04-20T23:09:09.51 |
IV.FOSV.EHN. | ML:1.4 | 0.00005145 | 0.26 | AML | other | m | 2021-04-20T23:09:10.26 |
IV.ATCC.EHE. | ML:1.5 | 0.000052900000000000005 | 0.56 | AML | other | m | 2021-04-20T23:09:10.86 |
IV.VCEL.EHN. | ML:1.6 | 0.0000679 | 0.96 | AML | other | m | 2021-04-20T23:09:12.95 |
IV.VCEL.EHE. | ML:1.7 | 0.00009645000000000001 | 1.14 | AML | other | m | 2021-04-20T23:09:13.01 |
IV.MURB.HHE. | ML:1.7 | 0.00008015 | 0.34 | AML | other | m | 2021-04-20T23:09:14.42 |
IV.MURB.HHN. | ML:1.6 | 0.0000663 | 0.28 | AML | other | m | 2021-04-20T23:09:14.68 |
IV.FAGN.HHE. | ML:1.6 | 0.00007255 | 1.4 | AML | other | m | 2021-04-20T23:09:14.84 |
IV.FAGN.HHN. | ML:1.5 | 0.0000575 | 0.38 | AML | other | m | 2021-04-20T23:09:15.19 |
IV.T0110.HHN. | ML:1.6 | 0.0000608 | 0.2 | AML | other | m | 2021-04-20T23:09:16.97 |
IV.ARVD.HHE. | ML:1.2 | 0.000020799999999999997 | 0.28 | AML | other | m | 2021-04-20T23:09:17.39 |
IV.T0110.HHE. | ML:1.7 | 0.00006325 | 0.44 | AML | other | m | 2021-04-20T23:09:17.44 |
IV.ATCC.EHN. | ML:1.3 | 0.00004095 | 0.92 | AML | other | m | 2021-04-20T23:09:18.01 |
IV.ARVD.HHN. | ML:1.0 | 0.0000151 | 0.64 | AML | other | m | 2021-04-20T23:09:19.53 |