Earthquake with magnitude of Md 2.4 on date 10-07-1988 and time 08:18:28 (Italy) in region 8 km SE Castelsantangelo sul Nera (MC)

A magnitude Md 2.4 earthquake occured in region: 8 km SE Castelsantangelo sul Nera (MC), on

  • 10-07-1988 06:18:28 (UTC)
  • 10-07-1988 08:18:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8250, 13.1900 at 10 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.

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 8 281 281
Norcia PG 9 4957 5238
Arquata del Tronto AP 11 1178 6416
Montegallo AP 12 523 6939
Preci PG 14 724 7663
Montemonaco AP 14 604 8267
Ussita MC 14 444 8711
Visso MC 14 1107 9818
Accumoli RI 15 667 10485
Montefortino FM 18 1178 11663
Cascia PG 19 3217 14880
Acquasanta Terme AP 19 2916 17796
Bolognola MC 19 142 17938

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Foligno (57155 inhabitants)
46 Km W of Teramo (54892 inhabitants)
53 Km NE of Terni (111501 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
72 Km E of Perugia (166134 inhabitants)
86 Km W of Montesilvano (53738 inhabitants)
92 Km SW of Ancona (100861 inhabitants)
93 Km W of Pescara (121014 inhabitants)
96 Km NW of Chieti (51815 inhabitants)
99 Km NE of Guidonia Montecelio (88673 inhabitants)
100 Km E of Viterbo (67173 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
Md 2.4 1988-07-10
06:18:28
42.825 13.19 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 73059
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-07-10 06:18:28 ± 0.21
Latitude 42.8250 ± 0.0156
Longitude 13.1900 ± 0.0158
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 73059

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 2165.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00251
Epicentral distance of station farthest from the epicenter (degree) 0.00704
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 73059
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:09:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.AM8.Z. 1988-07-10T06:18:56.92 10.0 undecidable manual SG 22 0.777 1.62 0
--.ARV.Z. 1988-07-10T06:18:52.85 10.0 undecidable manual SG 345 0.6882 0.31 0.5
--.MNS.Z. 1988-07-10T06:18:49.31 10.0 undecidable manual SG 220 0.5772 0.61 0.4
--.ASS.Z. 1988-07-10T06:18:44.80 10.0 undecidable manual SG 301 0.4551 -0.11 0.6
--.AM8.Z. 1988-07-10T06:18:43.18 10.0 undecidable manual PG 22 0.777 -0.69 0.7
--.ARV.Z. 1988-07-10T06:18:41.57 10.0 undecidable manual PG 345 0.6882 -0.7 0.7
--.MNS.Z. 1988-07-10T06:18:40.10 10.0 undecidable manual PG 220 0.5772 0.05 1.6
--.ALP.Z. 1988-07-10T06:18:39.30 10.0 undecidable manual SG 99 0.2775 -0.12 1
--.ASS.Z. 1988-07-10T06:18:37.53 10.0 undecidable manual PG 301 0.4551 -0.34 1.4
--.ALP.Z. 1988-07-10T06:18:34.33 10.0 positive manual PG 99 0.2775 -0.21 3.1
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